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Hi all, I am wondering which speed is used for the commercial aircraft to climb after take-off. I have heard that aircraft climbs at constant airspeed until reaching a certain mach number and then continuing with constant mach. Is that the most common procedure for jet aircraft? and what kind...

Thanks you both for replying my post. but i think there is a bit misunderstanding here. The flight data I am looking for is actually the data recorded from a real flight, not the performance specification of the aircraft. It is sort of the data recorded every minute during the flight saying what...

Hi all i am a student doing my thesis on the aircraft performance. However, i am in a need of actual flight data to validate my work. The parameters i am looking at is the range, fuel usage, velocity and altitude. Does anyone know where can i access to those data of any flights or any types...

thanks for all the reply rb1957, is that what the manufacturer really do to estimate the range. do know have any paper or ref i can look at?

hi all, Im currently a aerospace engineering and I have some questions that I have been wondered about the range equation. I just studied about the breguet range equation (R=v/sfc L/D ln(wi/wf)). The equation is pretty simple within many assumptions such as constant speed constant L/D... How...

I am wondering which type of radiator is commonly used in helicopter powertrain? is it similar to that of airplane or car? And usually where are they located?

hi, i am working on a project to design a helicopter. Right now my task is to acquired the force required from actuators to tilt the rotor. I have done some research and with my understanding, I am very confused on the way to get or estimate that force. First way I tried was to use the pitching...