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Forum: Rotorheads

19th Oct 2006, 00:02

Replies: 14

Aerodynamic Efficiency: Tractor Propeller verses Pusher Propeller

Views: 8,346

Posted By Greaney

Translational Lift

In forward flight, a pusher propeller located below
the main rotor would experience some airflow
parallel to the propeller's disk. This would increase
propeller efficiency, as forward movement...

Forum: Rotorheads

22nd Jul 2006, 04:53

Replies: 42

aviation mythbuster

Views: 5,354

Posted By Greaney

Memory is the first to go.

bfisk,

Was that with the older VOR they used in the mock-up? Wish I had
recorded that episode. Didn't they have to go to a sig gen with higher
power to get the response?

--Shaun

Forum: Rotorheads

21st Jul 2006, 19:29

Replies: 42

aviation mythbuster

Views: 5,354

Posted By Greaney

Discovery Channel's Mythbusters

Does the Discovery Channel travel beyond the States?

On Episode 49: Cell Phones on Planes of the Mythbusters
they examined this problem....

Forum: Rotorheads

21st Jul 2006, 19:11

Replies: 18

Vodaphone mast

Views: 1,909

Posted By Greaney

Worry About the Handset (and the SUV)

Transmit power falls off rapidly with distance. In the
free-space model, doubling the range decreases the
delivered power by a factor of four (square law). Yes,
the base station is transmitting...

Forum: Rotorheads

19th Jun 2006, 18:48

Replies: 8

Phase Angle - What is it??

Views: 2,311

Posted By Greaney

If you would like to read a nice derivation of...

If you would like to read a nice derivation of the dynamic
equations of blade motion about the flapping and the
lead/lag hinges, check out Ch 4, Rotating Blade Motion
in "Principles of Helicopter...

Forum: Rotorheads

4th May 2006, 14:15

Replies: 99

Hiller

Views: 24,557

Posted By Greaney

Hiller URL

Until you can make the trip:

http://www.hiller.org/

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