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- From: pfeiffer@nmsu.edu (Joe Pfeiffer)
- Newsgroups: rec.models.rockets
- Subject: Re: Altitude, Current records, Supersonic flight
- Message-ID: <1992Jul21.160448.28208@nmsu.edu>
- Date: 21 Jul 92 16:04:48 GMT
- References: <1992Jul20.162825.27406@cs.ucf.edu>
- Sender: usenet@nmsu.edu
- Organization: NMSU Computer Science
- Lines: 18
-
- In article <1992Jul20.162825.27406@cs.ucf.edu> dlw@engr.ucf.edu (Chip Wuerz) writes:
-
-
- Designing single and multistage supersonic rockets are a little tricker
- than that of subsonic rockets. For example, it has already been pointed
- out that the center of pressure changes.
- To make sure the rocket will still be stable when supersonic you need a
- more stable rocket to account for CP and CG migration.
- Also, it is important note that most flight simulation programs use
- subsonic formulas for various parameters and calculations.
-
- Thanks for the report -- very interesting!
-
- I didn't understand something, though -- since at supersonic speeds CP
- migrates back, and since CG can only migrate forward as the fuel is
- expcended, why is a ``more stable'' rocket required?
-
- -Joe.
-