4 wheels 2 axles challenge – the sequel

one of the useful things about having 2 kids, is that when the eldest gets given a competitive challenge at school, you have a second bite of the cherry with number 2.

well, the 4 wheel 2 axle challenge came around for a second time.

we had learnt a lot from the first time.

the “best colour scheme” trophy was a false hope. We had to go for broke and not rely on the vagaries of a colour blind judge who still thinks lava lamps are hip. we were going to break some sort of land speed/distance record this time.

there had been a bit of churn in the competition, Mr Forumula 1 had departed, Team laser had lost interest, but Fusion reactor was still about and getting cagey about his latest effort.

But we had resurrected the test ramp, and invested in some fancy axle lube. this time there would be no superfluous drivers with un-aerodynamic hair – just a finely tuned, low friction vehicle capable of heading in an optimal straight line.

This was my last chance of taking this title home. There were no more kids in the pipeline. At all.

we did lots of testing, different weights, different axles, different lengths.

we had a good formula. testing had gone well.

but we had to make one compromise – it didn’t look very nice. and everyone could see inside the transparent lemonade bottle. and check out our ballast distribution to optimise down force and axle load.

i succumbed to number 2’s demand for a makeover. we went for a multi-coloured stripey effect. sort of go-faster-stripes on acid.

The big day came. bright sunshine, even a bar was laid on. apparently the PTA had received a few comments about the lack of adult refreshment. In these tense high octane sporting events a bit of light refreshment is necessary. and i think the PTA sensed it was easy money.

Mr tannoy was in full flow.

the competition had upped its game. lots of streamlined racers. not many kids did this years entrants.

there seemed to be a food theme going on. Mr Fusion reactor had gone for what looked like a Paella. There was a fairy cake (cupcake if you want). a sort of squid like fish thing. it was a competitive looking assortment.

the first few where well short of our test run distances. we were feeling like it could be our day.

Cup cake put in a pretty good effort. but we had more in the tank. we were sure.

we got the call. a quick check of the wheels, a final dab of lube. all in order.

these few seconds would define our primary school experience.

3-2-1 go!

number 2 let it go down the ramp.

it was a great launch down the ramp. good momentum. the trajectory was straight. things were looking good. the spectators had to scuttle out of the way as the track wasn’t long enough. the crowd was cheering. they could sense it was something special.

the distance was good, but  just a bit of a veer to the right spoiled what was a very very good run.

I caught the eyes of a few parents – that approving look – nice effort.

the only real contender was Paella Express – Mr Fusion reactor.

Paella express takes gold
Paella express takes gold. number 2 gets silver. cup cake bronze.

we couldn’t believe it. 8 cms. nightmare.

 

 

Homework – 4 wheels 2 axles challenge

No1 came back from school with some homework. They had to make a car with 4 wooden wheels and 2 axles that were provided. The car is then rolled down a ramp and the one that goes the furthest wins. Obviously it is a task for the kids and the parents were only to help with the tricky bits and maybe the use of power tools. They’ll learn lots about Newton’s laws, planning, designing, putting things together, and loads of other stuff that must be in the National Curriculum. Better than thinking creatively about how they might colour a poster for a “sharing” assembly.

But in the class there is some stiff competition. One dad works in F1, in the aerodynamics department, another builds laser machines, another is helping design a fusion reactor, plus lots of other clever technical type people. I make powerpoint slides. Things are looking bleak for a win.

Plus there will be an event where students and parents all get together to watch the competition. Public glory/humiliation is at stake.

The initial design is looking like it will have trouble moving with the wheels glued to the chassis. Which is an egg box. Competitor intelligence is indicating that the wind tunnel results are promising and Team Laser’s initial mass/wheel base calculations just need fine tuning. At least ours will have a tastefully coordinated colour scheme with actual drivers in the car.

I even found a few bits of wood from the shed to make a test ramp. Proof to The Wife that all those random bits of wood do actually come in handy at some point.

Trial and error (thanks to my ramp) actually helped improve the design. Now the wheels turn and we get to the bottom of the ramp. The house brick on top of the egg box was also ditched.

It’s amazing how long the aesthetics take on these technical projects. As we changed our focus to winning the “best colour scheme” award. Good to know one’s strengths.

Big event. Ramp somewhat bigger than mine, course is roped off, winners podium, BBQ is cranked up, and megaphone that works. Fair dues to the staff as it all looks quite professional. Some playful banter between the dads, but you can tell everyone is a bit nervous. Discrete peeks at the competition. Ours looked like it is in with a chance in the “best colour scheme”. It even looked like a few of the kids made their cars on their own.

F1 appears to be made of carbon fiber. Looks suspiciously like it could hold its own at Silverstone. Team Fusion Reactor appears to have a paella on top. Someone copied an early version of our house brick design. No1 obviously succeeded in implementing our false information deception strategy.

We didn’t win the “best colour scheme” award. Didn’t even get on the podium.

But we came second in the main event. Only lost by 4cms to Team Laser. Gutted.

wheels challenge barbie car