Friday, Saturday, Sunday, Monday All Done!

Firstly a correction has to be made to an earlier Blog entry in which I stated that Tokai had crashed on day one (I officially apologise to Tokai for my error, at the time I believed that this information was correct). In fact it was Umicore who basically totalled their car on day one. I guess this is an example of the rumour and "Chinese whispers" that the teams at the rear of the field receive, there is no one official who can tell us the facts and information about what happens at the top of the field, rumour gets past from observers to teams and to observers and so on.

Thursday night we stay in the Underground Backpackers in Coober Pedy. The temperature 10m underground is cool and for the first time I need my sleeping bag to stay warm. Up early again (thanks to Rick Astley set as some ones alarm tone, waking me) but others have beaten me to the array and it's already set up for the morning charge, well before the sun peaks over the horizon.

We elect to put some extra charge in the batteries. The sun doesn't help us much early in the morning unless you can point the array at it, so rather than use the charge we have stored in the batteries, driving early, we wait for the sun to get higher in the sky when it is much more useful for driving. We want to maximise on road solar kilometres and the solar car leaves at 9:00am. We tow the solar car a couple of k's back to the control stop. There is a big hill that I don't want the solar car to climb I don't want to risk heating the motor and I definitely don't want to take precious charge from the batteries. I push Trent off and walk back to the camp.

This morning I will ride in the bus, the basic plan is that those left in Coober Pedy will finish packing and then catch up with the solar car whilst it solars toward Adelaide. We will then swap and I will drive rear support down to Port Augusta after we have solared as much as possible. We have to be in Port Augusta by 5:00pm solar time.

In 2005 when I spent time on the bus we had a flat tyre (inside rear) which we had to change it was a big job and took quite some time. When I get back to camp I find the bus has a flat battery Doh!!!! We un-hitch the trailer an I roll it out of the car park, which is fortunately down hill and doubly so the bus is pointing in the right direction, a brief push by the team to get me rolling and the bus starts easily. We decide to have the local auto electrician to check that it is charging. Our auto electrician is driving the solar car and my multi-meter is in the solar car trailer, just in front of solar car. The auto electrician checks that the bus is charging and suspects something was left on (other than Engel fridges) all night draining the batteries. We turn it off and then start it again to check that it starts, we decide its best to do it here where the auto electrician is, it's all good.

We pick up the support team and head off to chase down the solar car. We catch it about 90 km south of Cober Pedy and they tell me that motor or controller has cut out a couple of times. We swap drivers, Leonie jumps in the bus with Peter and they head off to Port Augusta. We choose to solar some more and the car goes really, really well, there's no sign of the problems the team had earlier in the day. We are now in the situation that the car is running really well and I could see us clocking up over 250km for the day (maybe more) but our hand is forced by the shortening of the event and the rules that forced us to spend lots of time in the trailer to make check points rather than being allowed to solar. As we tick over 141 km for the day which also marks 950 km for the challenge we decide that we'll trailer the rest of the day. We are about 350km from Port Augusta and it is now 1:30pm.

I am disappointed we have had to stop, the car is running really reliably and we are fairly confident that we have ironed out all of the crinkles. In the last challenge we still would have had another day and a half to go and we could have beaten our past total easily. I console myself in the fact that if I do some simple maths i.e divide this years total by the number of days, and divide last challenge total by the number of days, on a kilometre per day comparison we have beaten our previous best. It's still not quite the same.

We put the car in the trailer and head toward Port Augusta. On our drive we listen to each of the occupant's music the styles vary greatly, I also reflect on what we might have been able to achieve if we had 1 or 2 more days and if the event organisers had relaxed the control stop rules earlier. It is a long drive and the scenery is unremarkable lots of flats, no hills, no trees and nothing out standing on the horizon. We pass the occasional salt lake which breaks up the scenery. Lester our observer, is on his first World Solar Challenge and tells us that this is what he has come to see. He mentions the changes of scenery as we have travelled south and is in awe of whatever he sees.

We stop at Glendambo for a break and I buy some classic roadhouse food, the first for the journey and then remember why I have avoided doing so until now. I casually ask if they have seen a bus load of Leeming kids go by. They say "oh yeah they went through about half an hour ago, but they'll be back soon" I enquire as to why and they say they didn't pay for fuel and their boss is chasing them down in his car. I ask if they can contact their boss and suggest that if they didn't pay it was an honest error and I am happy to pay now. They contact the boss, he hasn't left he was simply going to call the police. I pay the bill and all is okay. It turns out however that it was the attendant's mistake. He watched Peter fuel the bus then come in and purchase some water and food. Peter handed over his card and the attendant only charged him for the food and water. On ward to Port Augusta.

7 km from Port Augusta we see Heliox (Swiss) solaring at around 20 km/h, their batteries are dead flat and they are desperate to make 1000km for the trip. As we pass we flick to their radio channel and wish them well. We make Port Augusta at about 5:09pm, it is windy here, and if I hadn't been here in 2007 in extreme conditions I would have said very windy. It was windy here in 2005 too. We meet the clerk of course who tells us we need to be in Adelaide tomorrow before 12:00, he says not to worry about sitting for the ½ hour control stop and to just take a time penalty. I wasn't planning to wait another half hour. Peter calls ahead to Port Pirie and is told the wind is calm and there is plenty of camping spots available, we go.

When we get to Port Pirie the park owners allow us to stay for free, Heliox also end up here and they stay for free too. It is dusk and the team, after reversing trailers and busses into the camp spot, go about setting up camp. I have my first attempt at putting up one of the tents, I fail miserably and gain an extra appreciation of the work that the support crew have been doing. Some of our younger team members take great pleasure in pointing out where I went wrong in trying to put up the tent. Within half an hour or so the camp is set and the BBQ is cooking up the last of our food, I am very impressed with the team effort, everyone has worked well and things run smoothly. Dinner is a mish-mash of baked beans, tinned spaghetti, eggs, bacon, ham and toast followed up by tinned fruit, we won't need food in Adelaide so we are trying to finish up what's left. No one complains and all the food gets eaten.

Everyone is tired and there is no need for a dawn charge tomorrow so we might be able to sleep past the sun coming over the horizon. 5:00 AM Rick Astley joins the camp with "Never Gonna Give You Up." The student who owns the phone desperately tries to turn it off but by now is fearing for his own existence, for two days in a row many team members and I have been subjected to Rick at 5:00am.

Eventually the rest of the camp rises and we pack up and head off on the final leg into Adelaide. We make it around 10:40am (11:40 civil time) and line up for the ceremonial drive over the finish line. Rhys does the honours. The team bar three, jump in the electric solar bus which ferries team members from Torrens parade ground to Victoria Square, the others jump into the pilot vehicle and call traffic conditions to Rhys via radio. The driver is impressed that our car still has the legs to climb the hill to the finish line. He says many have had to push their car the 2km's up hill. I think of the extra solar kilometres we could have done with what is left in the batteries.

The bus drops the team and we walk behind Rhys over the finish line. Willetton and some of our team members' parents are already here and provide a huge cheer for us as we cross the line. I am very impressed with Willetton and am pleased with how many kilometres they have done, 906. At the beginning of the Challenge Darren told me he would be happy with 750. Photos are taken Batteries are scrutineered and our car is put on display. We head back into town to set up the final camp site, a backpacker's hostel, right in the heart of the city at the western end of the Rundle Mall.

Saturday night we all head to the convention centre for the official closing ceremony and awards. Team members carry extra shirts to swap with others, this is a solar car racing tradition and is probably a much more important part of the evening to many of the participants of the challenge than the awards presentation. We sit through the awards, eco cars first and I count 11 awards for the 17 eco entrants. There are about 9 awards including place getters for the 32 solar cars that participated in the challenge. In past years each team was acknowledged and team managers were presented with participant awards in front of the group. This year it was simply mentioned at the end that teams could pick up their participants memento in the corner of the room.

After the ceremony all team members moved to a large room where the frenetic shirt swapping begin and soon it was difficult to know which team member was from which team. Our team eventually heads off to subway for dinner, but I am keen to talk to a few people whom I have met over the past 4 years. I get the chance to congratulate Dave Snowdon and UNSW on their challenge class (silicon) win and speak with many of the observers, scrutineers and team members from other teams. I guess an unofficial debrief of sorts.

I eventually leave and catch up with the team at Subway however I now seem to have team members from Michigan, Turkey, Japan, Malaysia, France, Germany and England as they are all wearing their new prized shirts.

We retire for the evening.


Sunday, clean bus, pack up trailers, throw out rubbish collect others discarded solar car tyres (some brand new), electrical bits and pieces etc… I pick up Hedgie from the airport and take him to see the remaining cars on display before he heads off on his journey back to Perth driving the bus.



Monday relaxing day before heading to the airport at 3:00 to catch our 5:15 flight home. All is well and we all make it home safely. I am sure many heads hit the pillow not long after getting home. We are done for 2009.





Solar kilometres for 2009

• Sunday 25 Oct 163km Katherine overnightMonday 26 Oct 181km Renner Springs Over night
• Tuesday 27 Oct 65km Alice Springs over night
  (Tuesday 27 Oct trailered long distance in dust storms and strong head winds).
• Wednesday 28 Oct 187km Kulgera Road house over night
• Thursday 29 Oct 213km Coober Pedy Underground back packers.
• Friday 30 Oct 141km Port Pirie Caravan Park over night
  (Had to stop solaring at 1:30pm to make Port Augusta by 5:00pm)
• Saturday 31 Oct 2km Adelaide 2 km to official finish not counted in total.

Total 950 solar km
2071 diesel km

WSC Results - revised

After receiving observer reports about log book anomalies, the results for the 2009 WSC have been revised. Specifically, Bo Cruiser distance was revised down to 1850km and Ariba IV was revised up to 1380km.

The ranking has been updated accordingly.

The results can be downloaded as a PDF.

Student Blog 30th and 31st October

30th of October – Student Blog

Today didn't start off too well. Our bus is being uncooperative in the morning by deciding not to start, and we suspect the batteries to be the problem. They're working pretty hard to keep three Engel fridges running so our food doesn't spoil, and we had the feeling that it'd only be a matter of time before they petered out. Not much had to be done to get the bus moving though. Once the trailer was unhooked it was just a matter of pushing the bus out of the parking lot, and it started working again. Strange really, but at least we don't have to push it for the rest of the race!

More problems arose after solaring for about an hour and a half. The solar cars motor cut out, and at the time we thought it may have been due to the failsafe in the motor that makes it cut out in a certain temperature. Overheating seems to be a persistent problem for us. Our usual solution of pulling over to give it a rest and a spray of demineralised water seemed to do the trick, and we registered 142 solar kilometres for our final day of Solar Racing.

The rest of the day is just trailering to get to Port Augusta before nightfall. We make it with about an hour to spare, and decide to go on to Port Pirie for the night, but not before Mr. Sheppard almost forgets to pay for the fuel for the bus. Tomorrow, we drive into Adelaide, and over the finish line.

Love,
- The Team


31st of October – Student Blog

After our final stopover in Port Pirie last night, it was only a 200 km drive to Adelaide, and the finish line. The last week of camping has made the team adept at packing up the tents and the trailers each sunrise, and Mr. Sheppard complimented us on this as we left. Just a couple of hours later we're in a parade ground in front of an RSL club in Adelaide where all the teams that have finished the race are lined up, ready to solar the final 500 metres to the finish line. One place ahead of us is the University of Malaya with what has become known at the "Mecanno Car." One place behind us is the Swiss Heliox team, and behind them, Cambridge University.

They appear to be rolling up to Victoria Square in 15 minute intervals. A solar electric powered bus shuttles us to the finish line and we get there just in the nick of time to snap some pictures. The car got put on display in a tent on one side of Victoria Square, and we went to see how all the other teams finished the race, and talk to the public and some parents that have come out to greet us. Only a few paces from us was the thoroughly wrecked Umicore car. It's lucky that their driver survived a crash like that.

Later in the evening, we were off to the closing ceremony. Officially, we're there for the awards, but everyone knows that it's really about swapping shirts with the other teams. In the awards ceremony, there appears to be a competition between the Bochum University and Nuon teams to see who can cheer the loudest, and both are beaten out by Istanbul Technical University. We pick up our trophies and then try to score all the cool shirts we can. David even managed to negotiate a pair of driver's overalls out of Tokai!

And so, the race is now over. We made it across the country and we're all alive, with a grand total of 950 solar kilometres! Yay! Tonight and tomorrow night, we're staying at the Blue Galah Backpackers. Tomorrow morning, all we need to do is give the support vehicles and the bus a clean out, and put the solar car into it's trailer, then we can all have a nice lazy Sunday.

Love,
- The Team

Blog 30th+

October 30th

Six and a half metres under ground, we wake at 5am to Rick Astley singing "Never Gonna Give You Up".  A student stumbles out of bed and fumbles in his bag, and Rick Astley stops again.

At a slightly more civilised hour we get up.  We charge.

I solder the telemetry receiver antenna back together, which involves near endless walks between the follow car to find gear, the lead car to find other gear, and the TV room where I've plugged my soldering iron into power.

We set off.  It's a complicated shuffle this morning: we put a towing rope on the solar car and tow it the couple of hundred metres uphill to the (now closed) control point which was our nominal stopping point.  Then John jumps out of the follow car's driver seat, we detach the tow rope, Leonie leaps in, a couple of students leap in to passenger vehicles, we set up to roll out, and then we get word over the radio that the support bus back at camp has a flat battery.

But it's too late: we're already rolling out of Coober Pedy and onto the highway.

We solar on.  The car misbehaves and loses power: we're not sure if it's because the motor has overheated or because the motor controller has become confused.  It doesn't help that telemetry is very hit-and-miss today: it seems my repair of the antenna is imperfect.  We continue.

The school bus catches up: with the help of a large number of students pushing, they've managed to roll-start it.  We pause for lunch and charge, and continue.  The school bus goes on ahead.

A little further on, we run out of time: we must put the solar car in the trailer and go forward in order to reach Adelaide in time tomorrow.  We've solared 143 km for the day, bringing us to a total of 950 km for the event.

We meet the bus (and the parents of two of the students) at the Port Augusta control point.  We don't bother to serve our full 30 minutes: since the Challenge rules forbid us from doing any more solaring, there's no point.  We continue to Port Pirie, and check into a caravan park.  The caravan park is free for school groups, which is nice, but it features the port Pirie Jumping Prickle, which is not so nice.  These prickles somehow leap off the ground onto your sock, and then burrow in until they can stab you.


October 31st

In the morning we get up early to trailer in.  Several other teams are trailering on the same part of the highway, all attempting to hit the same deadline as us.

We arrive at Torrens parade ground, and get in line: there's a queue of solar cars waiting to do the 2 km run up the the official finish line at Victoria Square.  After an hour or so it's our turn.  We put the solar car on King William Road, and then the bus that will carry us to the finish line arrives.  We're required to leave our own support vehicles behind.  The bus supplied by the Challenge travels in front of the solar car, and has no rear window, so we can't see what's happening.

At the line, the bus pulls in so we can get out, while the solar car waits just short of the line.  Then we walk across the line with it.

Challenge officials check that our battery seals are still in place, and we walk the car to its spot in a marquee tent, in the shade.  We wander around for a bit looking at other cars, including the wreck of Umicore.

Lunch is a find-it-yourself affair, and then we go to the closing ceremony.  The Istanbul team are very very happy to have won the "best newcomer" award.

Usually the closing ceremony features a bit where all the team managers go up on stage and receive a participation award.  This time that time is filled by a large number of Eco-Challenge awards: best small diesel, best large diesel, best small petrol, best large petrol, etc, etc; and there's simply an announcement at the end that team managers can come and pick their awards up from a corner of the room.

There's a chin-wag and shirt-trade: I get an official observer shirt.

There's an after-party at The Woolshed, but our under-age students are not invited.  So we go for Subway.  It's Halloween, and there are a variety of undead, monsters, angels and demons wandering past.

Then to bed.


November 1st

Three of our drivers are old enough to drink, and they come in from the after-party at about 1am.  Then the Germans in the next room stagger in at 3am.  Then at 5am it's Rick Astley again.

Most of the team goes down to clean support vehicles and sort equipment for shipping back.  The bus begins its trip back to Perth, with the solar car trailer behind; driven by the same teacher who drove it up to Darwin.

Students play pool at the pool table on the balcony of the backpackers'.  Pool is much better for money when the players are no good at it: they can play much longer for their $2.  The table's habit of occasionally neglecting to return the cue ball when it is pocketed merely adds to the fun.

Dinner is at the Chinese restaurant we usually go to when we visit Adelaide.

Tomorrow we'll fly back to Perth.

--  Doug Burbidge   http://dougburbidge.com/

Student Blog @8 29 Oct

28^th of October – Blog from the Bus

Our return to a sheltered sleep overnight was followed by relatively calm sort of day, compared with the three that preceded it. In the south wing of our bunkhouse was a primary school group from Jervis Bay. As we charged the array in the morning they came to take a look, and we answered questions from both their students and teachers.

After pointing our array at the morning sun, Hammerhead and its support crew left Alice Springs at 11 am whilst the rest of the team went for a look around town. By 11.30 the whole team was on its way toward the Northern Territory/South Australian border. At a roadhouse in Stuart's Well we were lucky enough to be given a performance by Dinky the Singing Dingo, a dingo that howls to the tune of music. Ellie was our (un)willing pianist and the pair gave us a lovely double act.

The unfortunate shortening of the event from eight days to five and a half means that slower teams like us have had to trailer our cars long distances to get to the control points in time. The steep inclines and headwinds we encountered over the first couple of days haven't helped much either.

However, now that we have passed Alice Springs, the route is largely downhill, the weather is clear and sunny, perfect for solaring our way to Adelaide and the officials in charge of the event have allowed us to miss more than one control point. We hope to get as many solar kilometres in as possible on this short leg of the trip. The support crew rearranged themselves after lunch and we continued down the Stuart Highway. We'll be camping at Kulgera tonight, and are looking forward to some of Mr. Sheppard's (very) well done steaks.

Love,

- The Team

P.S. Hammerhead was driven under solar power for the whole of today (barring the last half hour to 5 pm, trailered in order to make the checkpoint) travelling a distance of 187 kilometres. A new record for one day of driving! This brings us up to 596 solar kilometres for this race so far.

29^th October – Blorg

For a lot of people, last night was the best sleep we've had in tents so far (the first night there were tonnes of cane toads and bats, the second night it was very windy and everybody forgot to peg their tents down, and the third night we stayed in dorms in Alice Springs). The nights and mornings are beginning to get a little bit colder, so there were a lot of people who wanted their jumpers but couldn't be bothered getting them because they were at the bottom of their bags – not that the team is lazy or anything.

The honour of dawn patrol was also particularly chilly. Because the batteries were very low from yesterday (again), we had to spend from the end of racing to sunset last night and from dawn to 9am this morning pointing the arrays to the sun. The conditions were pretty good the rest of today though; warm with almost totally clear skies, and we were able to start the day off with Hammerhead on the road. Unfortunately, just as we were pushing Doug and the solar car back onto the Stuart Highway, it decided not to start. The problem turned out to be the brake light switch, of all things.

Normally, when the brake pedal is pushed, the brake lights go on, and our hub motor cuts out. The switch that controls the brake lights was stuck in the "on" position, in turn causing the motor controller to think we were pressing the brakes and proceeding to cut the motor, even though be weren't touching the brakes at all. Mr. Morgan cursed a stripped plastic thread that was causing the problem and we were back on the road in less than five minutes.

Less than 20 kilometres in, team bus came across the Northern Territory/South Australian border. We were met with a giant sign saying "Welcome to South Australia" on one side, and "Welcome to the Northern Territory" on the other. We waved at the solar car as it drove past, before posing for team photos on both sides, before and hitting the road again.  We overtook the solar car and continued on to Marla, which had a nice café and lawn for us to sit on. We will be staying in Coober Pedy tonight, which we all have been looking forward to. We've got reservations in an underground backpackers place (Hope no one's claustrophobic) and we'll be having dinner at "the best pizza place in Australia".

Love,

 - The Team

P.S. Yesterday we beat our personal best for one day of solaring. Today we did it again. 213 kilometres in eight hours! Total distance under solar power stands at 809 kilometres.

Oct 27 - 28 - 29

Monday, Tuesday, Wednesday, Thursday

On Monday afternoon after putting a little charge in the batteries we solar forward from Mataranka.  As we drive, around 50km/h we discuss our options.  In 2009 the world solar challenge has been shortened by 2 days.  And if you are not one of the top ten teams it is actually shortened by 2 and a half days as solar cars are not allowed to proceed past port Augusta after 1100AM on Friday. A note the World Solar Challenge is staying on solar time and not Daylight saving time in S.A.  

This year the control stop times have also been shortened and teams must make controls stops to stay in the challenge.  This presents us with a dilemma.  We have to make the stops but we also need to solar.  We calculate how long it will take us to get to the next stop before it closes and we discuss the value of spending a long time in the trailer to get ahead on the race so we can get some solar time in.   

We are still solaring as we discuss the options.  There is reasonably strong head wind and this is making our going slow.   We decide to put the car in the trailer and  go ahead to control stop at Dunmarra 163 solar km today.  As we get closer to Dunmarra I see dust in the air and the head wind seems to be picking up.  I have thoughts of 2007 when dust filled the air and we crawled into Glendambo being pushed by the wing but with little visibility and no power from the sun. as we travel we also see many other cars who are thinking the same as us and they are all trailering to Glendambo.  A Truck driver travelling North, talks to us and tells us of a huge dust storm that he has driven through.  This might make our decision to trailer forward tomorrow easier.  We do our Control stop, say goodbye to our observer Colin and Pick up John, we have enough time to go ahead to Renner Springs to camp the night.  When we get here we discover that there are about eight teams here and all have done the maths that we need to be here to make the next stop at Tennant Creek.

Tuesday Morning,

It has been a windy night and the tent Morgan and I are in has blown over.  I suspect some sabotage as no when else's tent has blown over. 

We set up the arrays for a morning charge and tie them down.  The wind is strong  from the south and the dust is thick in the air.  We drive south as we have decided there is no point solaring because there is a huge head wind and the sun will struggle to penetrate the dust laden atmosphere.  We stop at Tennant Creek, drop off John and pick up David.  John has not done any solar kilometres with us but we have had some very interesting discussions about solar cars and his collection of fossil cars back in the UK.  We head to Alice, the air is beginning to clear but the head wind is still strong.   65 km from Alice we set down, the sky is now clear the wind has dropped and it's down hill into Alice.  The car goes well and apart for a ridiculously stupid over taking manoeuvre performed on us by a Japanese team the ride to Alice is smooth.

Navigating through Alice Springs is tricky, and we have a pretty good idea of the town lay out.  We make it even though there is a small error in the route notes.  I do pity teams that have limited English and those that have not been here before. I am sure there will be teams that get lost.

We pick up our new observer Lester, and say goodbye to David.

Our batteries are really low and we grab the last of the afternoon sun before we make camp at the caravan park we have visited twice before.  65 Solar Km for today.

Wednesday.

We charge our car and let it charge till about 10:30am. I speak to the Clerk of Course and then ring the Event Director to see if we are able to miss more than one of the control stop so we can spend some more time on the road solaring accumulating precious solar kilometres.  He is sympathetic to my (and many other teams) plight but suggests we try to maximise our solaring opportunity within the rules of the challenge.  We then go and serve our remaining 12 minutes at the control stop before trailering to the top of a hill about 30k's out of Alice and then solar.  The car runs well and we get 187 km's for the day.  Again we have to make control stop so we have to trailer into Kulgera.  We get in at 12 to 5  there are five or six other times already here and three or four more roll in some after 5  some teams are distressed that they have missed control (some only by 2 minutes) and are effectively out of the race as this is the second stop they have missed. 

An hour or so later a Red Shirt calls a meeting with all team managers  at the camp and explains that event organisers have relaxed the rules a little to allow the many teams at this end of the field  to miss control stops and maximise solaring but we must be in Adelaide on Sat by 12 noon.

Thursday.

We charge till nine and with good sun last night our batteries approach half full.  We have a breeze at our tail and the sun is shinning. 9:00am off we go.  No we don't, a faulty brake switch prevents us from taking off.  In short the car goes well a total of 213km Pizza for dinner and a cool underground bed. 

809km for the challenge so far.

Friday our last day to solar lets see what we can do.

John Beattie
Leeming SHS Solar Car Team

Blog 28th and 29th: Alice to Coober Pedy

October 28th

We stay overnight at our usual Alice Springs accommodation, the Macdonnell Ranges caravan park.

In the morning, I try to re-solder a bypass diode on the rear array.  My gas iron won't light -- I suspect that the fitting on the refill can is wrong and I'm just not getting any gas into it.  I try my 240V iron, running off an inverter plugged into a cigarette lighter.  It doesn't get hot enough -- I think it doesn't like the inverter's output, which is not true sine wave.  On my third attempt, I get an iron that works.

We spend several hours charging.  I try to get some telemetry numbers, but I am unable to even flip the coin: the Bluetooth receiver dongle for the laptop has gotten crushed, and is broken: Windows doesn't even notice when I plug it in.  I try to repair it, and succeed to the extent that when I plug it in, Windows now recognises it as an invalid device.

We go in to town to buy a replacement.  On the way, we notice that one of the back streets that the route notes instruct solar teams to use to get to the control point is closed by the council: they're resurfacing it.  Solar teams trying to find it will have to detour, in a strange town, with no map, and no signage.

Sure enough in town we see a solar car, lost.

We buy a Bluetooth dongle at Jaycar and return to the control point to serve the remaining 12 minutes.  Then we trailer 60km out of town to the next long downhill run, and begin solaring.  Telemetry works, albeit with reduced range.

We solar most of the day, with a break for lunch and charging, and end 12km short of the next control point, Kulgera.  Into the trailer and trailer forward the remaining 12 km, and we get in at 11 minutes to 5.  This is only a 10 minute stop, so at 4:59pm we're free to go.  We elect not to solar onwards for the remaining one minute of the day, so we charge and camp.  We've solared 187 km for the day.


October 29th

I repair the bluetooth dongle with a single strand of wire taken from a larger piece of multi-stranded wire, soldered onto a quarter-millimetre wide solder pad scraped carefully clean of its protective coating with a craft knife.

We charge, and I get in the solar car to drive it out of Kulgera.  I turn the "go" knob.  Nothing happens.

I turn it again, just in case.  Still nothing.

I turn the motor controller off and on again, and try again.  Not a sausage.

We pull the lid off and ponder the wires.  Trent notices that the brake lights are on: the motor controller refuses to allow you throttle up while your foot is on the brake.  But the brake lights are on even when my foot is off the brake pedal.  The switch that is supposed to tell when the driver's foot is on the brake has come loose, and is confused.  John wraps it in tape, thus persuading it that my foot is not on the pedal, and we begin solaring.

Again we solar steadily then pause for lunch and charge.

As we take the rear array off to charge, the telemetry antenna breaks off.  I swap in the antenna from the follow vehicle, and in the follow vehicle I switch back to using the antenna-less, reduced-range Bluetooth dongle.

We solar some more.  The tape we wrapped the brake switch in lets go and the car rolls to a halt.  So we cut the wires to the switch.

A little short of Cadney homestead, we put the car in the trailer and trailer forward to the Coober Pedy control point.  We have solared 213 km for the day.

Our stay in Coober Pedy is much like our last two challenges: accommodation at the underground backpackers', dinner at the pizza shop, concluding with making sculptures with the detritus of the meal.

--  Doug Burbidge   http://dougburbidge.com/