[Canberrauav] X8 catapult

Chris Gough christopher.d.gough at gmail.com
Thu Nov 8 06:53:40 EST 2012


Assuming we can muster arbitrary force, what is the limit of acceleration the vehicle can endure? Is there a limit on the autopilot?

Chris Gough

On 07/11/2012, at 9:06 PM, "Jack Pittar" <jpittar at bigpond.net.au> wrote:

> I agree that this type of launcher is the best approach.
> The main question in designing something like this is how long does it have
> to be, and how are we going to transport it?
> There is a significant advantage in having a single piece rail - any
> arrangement that requires folding or concertinaring parts becomes an
> assembly problem. Careful mating of the two lengths is required if the
> shuttle is slide smoothly from one length to the other.
> Can we do it in 2 metres? That is the length in the back of my station
> wagon.
> Can we do it 3 metres? Longer than that becomes unwieldy on a roof rack.
> We could consider a cam arrangement to achieve a constant force, such as
> that used in a compound bow, if we get a significant saving in the length of
> the rails.
> Jack.
> 
> 
> 
> 
> 
> 
> -----Original Message-----
> From: canberrauav-bounces at canberrauav.com
> [mailto:canberrauav-bounces at canberrauav.com]On Behalf Of Andrew Tridgell
> Sent: Wednesday, 7 November 2012 4:51 PM
> To: canberrauav at canberrauav.com
> Subject: [Canberrauav] X8 catapult
> 
> 
> This is my favourite catapult so far for the X8:
> 
>  http://www.youtube.com/watch?v=YLMcy42Bx1o
> 
> 
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