Lecture P7: Ideal Cycle Analysis   General comments  I covered
Chapter VII of the notes. The important part of this material is
understanding the behavior of simple turbojet engine cycles. A
necessary complication along the way is expressing the fairly
straightforward expressions for thrust and efficiency in terms
of principal design parameters, design contraints, and flight
conditions--this makes them appear more complicated. We did one
PRS question (PRS#1). This question is about at the level that I
would like you to understand the behavior of turbojets. You
should also know what the principal design parameters and
constraints are for these engines (like compressure pressure
ratio, and turbine inlet temperature).   Responses to 'Muddiest
Part of the Lecture Cards'  (6 respondents)  1) How does a high
by-pass ratio make an engine more efficient? (1 student) By
providing for a large amount or mass to be given a small
increase in velocity (through the fan). This leads to a higher
propulsive efficiency.  2) Wha