[AR] Re: hovering rocket vertical position control
- From: George Herbert <george.herbert@xxxxxxxxx>
- To: "arocket@xxxxxxxxxxxxx" <arocket@xxxxxxxxxxxxx>
- Date: Tue, 17 Feb 2015 11:35:39 -0800
For (very) short flights, compressed air rockets using COTS tanks (like,
standard propane bottles) give you more rocket-like behavior and are still darn
cheap. Air compressor, tank, compressed air "throttle" valve, whatever thrust
vector you want to employ.
They even really are a rocket - it's just rare to see cold gas thrusters these
days.
George William Herbert
Sent from my iPhone
> On Feb 17, 2015, at 9:26 AM, Nate Vack <njvack@xxxxxxxxxxxxxxxx> wrote:
>
>> On Mon, Feb 16, 2015 at 5:18 PM, <rsteinke@xxxxxxxxxxx> wrote:
>>
>> What have other people done? Are there other ideas?
>
> If you're looking to actually build a thing and test your stuff, you
> might do well with model rotorcraft; IIRC, Paul Breed tested a lot
> with helicopters. Quadrotors could reasonably approximate multi-engine
> rockets, and you could probably build a single ducted-fan design that
> would hover, too.
>
> Moving to actual rocket hardware will still involve some surprises, of
> course. But crashing a $500 model is... cheaper than crashing a
> rocket.
>
> -n
>
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