How high do model rockets go based on engine size?

Question

list the different engines as well as the heights.

Answer 1

The letter has relatively little to do with apogee height of the rocket.  The Different letters relate to the magnitude of the impusle produced by the engine (It's relatively equivalent to force).  The first number is the average thrust of the engine.  The second number is the length of the coast phase (time between end of boost phase and recovery stage firing).  For instance, a C-6-3 produces between 5.01-10 N-s impulse (C), has an average thrust of 6 N and a delay of 3 seconds.

Try here for more info: http://www.estesrockets.com/assets/downl...

Height is dependant on the aerodynamics of the rocket.  A more powerful engine will result in a higher altitude for a given rocket, but may not be suitable.  They greatest factor in the apogee altitude is going to be the weight of the rocket and the drag.  I have rockets (3 stage) that I can't launch with all three stages due to the fact that I will not be able to retrieve them after launch (0.5 mi apogee w/ 3 stages, about 600-900' with single engine), and also some that travel only a few hundred feet on the same engine(300-600).

Answer 2

The higher the letter i.e. C,D,E the higher the rocket travels. The height will vary by the weight of the rocket, small rocket will go higher than a bigger heavier rocket.