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Maximum speed -Pro craft
The standard approach for prop-driven aircraft is to assume that engine and propeller together produce a power (as opposed to thrust) output that is independent of speed. Calculations analogous to those carried out above for the jet aircraft, but based on power rather than drag, lead to formulae for maximum speed, absolute ceiling, and so on. The resulting equations do not however lend themselves to simple closed-form solutions, and generally, iterative solutions need to be found. Suppose the maximum engine shaft power output is Pmax. The propeller will convert this to useful propulsive power with an efficiency η ; the useful available propulsive power is thus given by Pav = η Pmax
Airflow control system principles: For any given engine there is only one set of conditions, mass flow, pressure ratio and rpm, at which all the compressor components are opera
In a continuous time linear system whenever any of the characteristic roots, say λ, has a positive realpart, ie R e (λ) = λ R > 0, then the system is unstable. Stability is ensure
Q. What do you mean by diffraction? Distinguish between Fresnel's and Fraunhofer's classes of diffraction. Ans. The phenomena of diffraction in case of light was first observ
Thrust calculation: The amount of thrust produced depends upon two things:- The MASS of air which is moved rearwards in a given time, the ACCELERATION imparted to the air.It
test for chemical stability of aggregates
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Engineers sometimes add chlorine to pipes to disinfect water. It is desired to achieve four logs of kill. This means that the effluent concentration of microoganisms is 10^-4 times
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