Physics Forums - Aerospace Engineering http://www.physicsforums.com Propulsion, Aircraft Structures, Crafts, Atmosphere en Tue, 21 May 2013 17:04:41 GMT vBulletin 60 http://www.physicsforums.com/images/physicsforums/misc/rss.jpg Physics Forums - Aerospace Engineering http://www.physicsforums.com Data of Engine PW4060 PW123D and PW127E http://www.physicsforums.com/showthread.php?t=691534&goto=newpost Mon, 13 May 2013 17:11:50 GMT Hello! My name is Luis Trindade and I am a Aeronautic Engineering student. I am doing a comparative study on aircraft performance, but I lack... Hello!

My name is Luis Trindade and I am a Aeronautic Engineering student.

I am doing a comparative study on aircraft performance, but I lack data on some of the aircraft. These data refer to the engines. Needed to know the fuel consumption in cruise and traction on the cruise of the PW4060 engine Beoing 767-300ER.

For engines PW123D PWC and PWC respectively PW127E manning the Bombardier Dash Q200 and ATR 42-500, needed to know the fuel consumption in cruise, the cruise propulsive efficiency, the power on the cruise and the specific fuel consumption at sea level .

I would be very grateful if they could help me.

Thank you ]]> Aerospace Engineering LuisT http://www.physicsforums.com/showthread.php?t=691534 why coning motion occurs ? http://www.physicsforums.com/showthread.php?t=689378&goto=newpost Thu, 02 May 2013 20:02:17 GMT axisymmetric bodies tend to rotate on its own axis while moving which is know as coning. why does it occur ? what are the forces which making it... axisymmetric bodies tend to rotate on its own axis while moving which is know as coning. why does it occur ? what are the forces which making it rotate ? what is the reason for this turning moment(coning) ?? ]]> Aerospace Engineering skoo http://www.physicsforums.com/showthread.php?t=689378 Helicopter construction tips wanted http://www.physicsforums.com/showthread.php?t=687341&goto=newpost Mon, 22 Apr 2013 21:09:01 GMT So my friend and I are building a helicopter this summer. I was designing the propeller blades and could not figure out what angle a stood for in the... So my friend and I are building a helicopter this summer. I was designing the propeller blades and could not figure out what angle a stood for in the pitch equation
a=arctan(P/2pi*r)
P=tan(a)2pi*r)
Also if anyone has any tips or has done this, any advice would be extremely helpful!
Thanks! ]]> Aerospace Engineering milesglev http://www.physicsforums.com/showthread.php?t=687341