View Single Post
Old Feb 13, 2002, 10:50 AM
stefanv is offline
Find More Posts by stefanv
MotoCalc Developer
stefanv's Avatar
Moorefield, Ontario, Canada
Joined Mar 2001
315 Posts
Originally posted by Immelmann

The thrust is determined by the mass flow multiplied by its increase in velocity:

F = m * V.
This should be:

F = m * a

where 'a' is the increase in velocity (meters per second per second).


The power required to attain the propulsion is given by the formula:

P = * m * V^2

F = Newton
m = mass flow (kg per second)
V = increase in velocity (meters per second)
P = power (Watts = volts * ampere)
This one should be:

E = * m * V^2

where E is the energy (in Joules or kg m^2/s^2), and V is the velocity (in meters per second), <u>not</u> the increase in velocity, and m is the mass (in kg).

The formula for power is:

P = F * V

Where P is the power in Watts, F is the force (thrust) in Newtons, and V is the velocity in meters per second.

stefanv is offline Find More Posts by stefanv
Reply With Quote