A few things,
1. Thank you so much for replying!
2. when you say the ceiling is 1000, is that 1000 meters or feet? I'm assuming meters, as that's my goal for the rocket, be it unrealistic for D motors.
1000ft, the standard unit of measurement when dealing with altitudes and the FAA in the US. Any rocket that can get to 1000m (about 3000ft) on D motors can certainly be test-flown on B motors to stay under the ceiling.
However, this site is really far south of the other places that have been recommended, about a 9 hr drive or so. Unless you’re planning on relocating soon or doing a lot of traveling, LUNAR would be a better option.
3. Could you elaborate on what you mean by research rocketry? The motors are likely just gonna be bought from Estes, but what you said is still intriguing!
For now you’re probably better off flying commercial motors (Estes, AeroTech, CTI) for the simple reasons of cost and safety. The requested information though, to satisfy your curiosity:
The Tripoli Rocketry Association supports rocketeers in making and flying their own motors using ammonium perchlorate composite propellant (APCP) or sugar-based propellant. In California, state law requires much more sophisticated facilities for this activity, including bunkers, than are available to Tripoli clubs, so within the state, the FAR site near California City (way down south, probably about 6 or 7 hours) is the only site where such activities are permitted.
Tripoli prefectures in neighboring states do not carry such burdens and research activities are a significant minority of flights.
Be aware that research rocketry is only open to Tripoli members certified for high-power rocketry at Level 2 or higher (although FAR
might have different requirements, being unaffiliated with Tripoli). There is no cost advantage to making your own motors and there are serious safety considerations to be made. Most who get into it pursue it as a learning activity, a hobby unto itself if you will. It is also necessary for the P, Q, R, and S motor monsters that occasionally make attempts to reach six-figure altitudes at Black Rock.
No research propellant formulae may be shared on the main portion of this forum; that is to be done in the dedicated Research section, which requires verification of Level 2 status for entry.
For now, learn as much as you can about commercial rockets and motors, and be fully qualified as a high-power flyer before diving into research stuff. It can bite.