In a real rocket, there is short a time in atmosphere and the
aerodynamics are less important. In a model rocket, all flight in
the atmosphere and the aerodynamics are very important. In a real
rocket, it has a liquid or solid rocket engine and a large
propellant mass fraction. In a model rocket, it has a solid rocket
engine and a small propellant mass fraction . In a real rocket,
there are four forces during atmospheric flight. In a model rocket,
there are four forces throughout flight. In a real rocket, there is
a long powered flight . In a model rocket, it has a very short
powered flight . In a real rocket, it has passive stability and
active control . In a model rocket, it has passive stability and no
control. In a real rocket, it has expensive materials such as
aluminum, titanium, and nickel alloy. In a model rocket, it has
inexpensive materials such as balsa, cardboard, and plastic. In a
real model, there is a high speed and the heating is very
important. In a model rocket there is low speed and the heating is
not important.
