Mars Snooper Upscale

I think putting motors in the pods would be marginal at best. The pods are very far from the centerline, and any thrust imbalance would push the rocket from vertical. If the motors in the pods were canted to point at the C/G that would be a big help. But again IMHO putting engines in the pods is asking for trouble. It's just bad ju-ju.

Wedge Oldham

However if you used CTI insta-ignite motors it might very well work better than any other combination might.

Mmmm...bad ju-ju....

Zooty

Bill, Talk about ambitious OMG the possibilities though. The use of the pods is not an easy one to work out as any slight off of alignment could cause catastrophic failure and a LOOK OUT from all. I have tried this on a

24/18mm scale in past and was not to successful but I kinda slapped it together in a weekend too. I wish you the best in this and let us know where and when the launch is. Gotta see this one go.

this may sound absurd, but suppose the engine was actually internalized, with the thrust ducted to the pods

haven't seen anything like that at LDRS!

it would handle the balance issue

- iz

I would LOVE to see all three pods burn off from 6000 degree ducted fluid flow :)

And that was tech Jerry

C'mon, Wedge. That show alone might be worth the price of admission. ;-)

The safety code protects you from wacky ideas like this. Rejecting it at the RSO table is just silly.

Heck, I might as well just put all the parts in a pile and set fire to them now rather than try that. I have been playing with the stress factors involved with trying to use power in the pods, as well as the alignment issues and have become fairly convinced that it would be too much trouble. Now maybe using smoke canisters in the pods set off at 1st stage burnout might give a very interesting effect wouldn't you think? I really need to come up with something different for this bird if I am going to spend this much money and time to build it. Not that the engineering for this as a 2 stage rocket isn't a project in itself!

Bill Ellick

Smoke pods or mere blackjacks since they are wimpy anyway.

Jerry

Which safety code do you follow?

Didn't you know that jerry is "exempt" from the laws of man!

would you RSO a rocket that used thrust vectoring to maintain steady course despite a motor failure within the cluster?

awesome project, BTW:

- iz

Smoke Charges in the pods is a good idea. Airstarting long burn low thrust motors like the 38mm H73 might also work with a large 75mm in the main section.

What about something like John Pursley uses with actual gimballed motors for his scale model. The only problem I see with his ystem is that after burnout you lose control.

Bob Kaplow NAR # 18L TRA # "Impeach the TRA BoD" >>> To reply, remove the TRABoD!

This is why the model needs to be at least 'somewhat' stable, once the motor's propellant is expended. Otherwise the model will begin to tumble.

1/2 caliber positive stability is probably sufficient.

Of course, some folks might see tumbling as a feature, not a bug.

NARAM 41 Vanguard gimballing detail

thanks for the tip, Bob

- iz