Function dispersed_motor 

pub fn dispersed_motor(
    motor: &SolidMotor,
    impulse_scale: f64,
    burn_time_scale: f64,
) -> Result<SolidMotor, AnalysisError>

motor with its total impulse times impulse_scale and its burn time times burn_time_scale: thrust F′(t) = (k/s) F(t/s) and propellant mass k m_p, with k and s the two factors. The impulse is k I and the effective exhaust velocity I/m_p (the specific impulse) is kept, as a motor of the same propellant burning more or less of it would; the dry mass, the nozzle and the propellant’s shape are kept. A column’s mass is scaled; BATES grains’ density, so their geometry and regression are kept.

Errors

• AnalysisError::Domain for a factor that isn’t finite and positive.
• AnalysisError::Unsupported for a propellant model this doesn’t know.
• As SolidMotor::new.