wwattles
Well-Known Member
- Joined
- Jan 20, 2009
- Messages
- 2,870
- Reaction score
- 0
I've had this idea bouncing around and I'm not sure of the aerodynamics of it, and I figured someone here may have seen or even tried the idea before.
Basically, it's a ring finned rocket, but the ID of the aft end of the ring is less than the forward end by a small amount. I was thinking the ring would have a cant of about 15 degrees or so. It would be mounted right at the back end of the rocket. In essence, it's like a small rigid parachute that has an enormous spillhole.
My intuition about the stability tells me that would be that the CP of the overall rocket would be thrown way backwards by the parachuting effect, keeping the rocket stable.
Anyone have any experience with this sort of thing, or places where I might be off?
WW
Basically, it's a ring finned rocket, but the ID of the aft end of the ring is less than the forward end by a small amount. I was thinking the ring would have a cant of about 15 degrees or so. It would be mounted right at the back end of the rocket. In essence, it's like a small rigid parachute that has an enormous spillhole.
My intuition about the stability tells me that would be that the CP of the overall rocket would be thrown way backwards by the parachuting effect, keeping the rocket stable.
Anyone have any experience with this sort of thing, or places where I might be off?
WW