This term now starts to offset the still increasing ram drag, eventually causing net thrust to start to increase.
3.
Net thrust is obtained by deducting the intake ram drag from the sum of the Core Nozzle and Bypass Nozzle gross thrusts.
4.
Therefore, rocket engines do not have ram drag and the gross thrust of the rocket engine nozzle is the net thrust of the engine.
5.
Since, unlike a jet engine, a conventional rocket motor lacks an air intake, there is no'ram drag'to deduct from the gross thrust.
6.
At a given point on the Husk Plot, SFC falls with decreasing ambient temperature ( e . g . increasing altitude or colder climate ) . The basic reason why SFC increases with flight speed is the implied increase in ram drag.
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