a little update...

im now thinking along the lines a rocket, using a brazed chassis, roughly 2ft long and maybe using an EDF and a solid booster rocket...

i was thinking a brazzed chassis using tubing etc, would be nice to have no body work except a front cone and maybe a few wings to keep it strait... like a skelaton chassis...

what do you think?

Open body work will create alot of turbulance and drag- you really need a fully enclosed frame/chassis, using something like those drag racers use:

http://www361.pair.com/brideaud/newe...0cf_2006_b.jpg

only enclosed at the rear too, like some of your other designs.

Take a look at Nic Case's designs...

iv had a rethink and do you think a balsa chassis would work, with the 2mm balsa wood sandwiched by 1mm aluminum on each side (basicly because it would be easy to cut and its cheap and light.

but would it be rigid enough (may have front suspention nicked from another car... ) and could i cut the aluminum (T6) with a dremel? or should i use a hacksaw?

forgot to mention, i was planning a drag car type chassis...

thanks
chris

Honestly, I would seal the balsa in an epoxy like they do with wood boats. I have a wooden Hydro made from light plywood. The wood was really soft and flimsy until we epoxied it. Its solid as a rock now.
I would apply a light coat over the balsa. It will remain light but strength is not a question after that.

would i drill all the holes before or after? and should i still use the aluminum?

I would drill the holes first and then seal everything.

As far as the Aluminum, I would take a test strip of balsa and seal it up and let it dry. Then see if its strong enough for your likings.

I have seen wooden boats run into rocks, banks, turtles, alligators... and nothing happen to the hull. I've seen then stepped on and the hull be fine. The epoxy hardens and strengthens the wood tremendously.

wow, ok ill do that then, thanks for the help :)

a little update, as i havent been on here a while :)

ok, im back to be able to use a hybrid rocket, except now, iv been litterally forced to use a more powerful rocket as the company i was going to use... i cant... so had to change to a differnt one which means a more powerful rocket...

which isnt a problem, just means i have a extra 5kg to play around with...

iv found a schumacher BIG 6 on ebay that i want, this will give me a perfect front and rear end to my car, and i also found a cheap way of me using a 4mm aluminium chassis, instead of the balsa and ali method i was thinking off...

im still waiting on decnet CA programs so i can visualise what i want to make...

but the most important change.. the name change.. to Black Pheonix, as this car was created from the original ideas of my Black Diamond car which was too difficult to make...

i dont think there are any other updates realy.. but though i should stay posting on here and keep you updated.... :na: