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Aviation : Recent Questions and Answers (Page 5)

Find answers to your questions about Aviation or help others by answering their Aviation questions.

What are the bumps in the F-22 Raptor wing for?

As you can see in the picture there are several bulges or bumps in the wing that are located in the aileron and...

Asked on 09/26/2021

2 answer

What are the expected vibration frequencies in a co-axial rotor system with contra-rotating propellers?

I am trying to understand the frequency spectrum of a co-axial rotor system. Form now i have a RC helicopter with two sets of three gear systems arranged in parallel,...

Asked on 09/26/2021 by Nilesh Naik

0 answer

How safe are commercial airliners from gallium infiltration?

I recently saw a video on gallium infiltration on YouTube. Gallium is a metal with a melting point somewhere between standard room temperature and human body temperature,...

Asked on 09/26/2021 by Mason Wheeler

1 answer

What type of airfoil do low-supersonic aircraft use?

I understand that supersonic airfoils have better performance supersonically, but it seems at if they are not always used for any aircraft that goes supersonic and that supercritical airfoils are...

Asked on 09/26/2021

2 answer

Where are the fuel tanks located in an Antonov An-225?

Does anyone have answer for where the fuel tanks are located on the Antonov An-225?(photo attached for explanation if anyone could)Would love to know how many tanks are...

Asked on 09/26/2021 by bdpaviation

1 answer

Is propeller wake turbulence quantifiable based on operating conditions?

I know the propeller does work on the air and thus the flow behind a propeller is higher than the airspeed. However, what is the quality of this flow? If...

Asked on 09/26/2021 by spaceprops

1 answer

Can UHMWP be used as composites for aircraft impact susceptible areas?

Can Ultra High Molecular Weight Polyethylene (UHMWP), be used as composites for aircrafts impact susceptible areas? I did some research but could only see UHMWP being used as a hybrid...

Asked on 09/26/2021

2 answer

On an energy-maneuverability (E-M) diagram how does the shape of a specific excess power (Ps) curve change as thrust is increased or decreased?

Most E-M diagrams for high-performance aircraft show a "dog house" plot with turn rate on the Y axis and velocity on the x axis. They may also have additional...

Asked on 09/26/2021 by Mlinx6

1 answer

Are there any true aerobatic helicopters that aren’t built around the Bo-105?

I know that some aerobatic maneuvers have been performed (legally or otherwise) in many different models of helicopters. However, to my knowledge, I have only heard of Bo-105s being specifically...

Asked on 09/26/2021

0 answer

How hot is the outer casing of a turbofan engine?

I am able to find temperatures inside different components of turbofan engines, but I can't seem to find what would be the temperature of the external casing/shell of the engine....

Asked on 09/26/2021 by Hamza Khalid

0 answer

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