Re: For all the Pilots / WWII Buffs . . .
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Joined: Mar 2001
Posts: 1,387 Likes: 8
President connoisseur
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President connoisseur
Joined: Mar 2001
Posts: 1,387 Likes: 8 |
I believe the P47 is the fixed gear version of the Harvard.
Ian Colquhoun President & Chief Engineer
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Re: For all the Pilots / WWII Buffs . . .
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Joined: Nov 2005
Posts: 1,236
connoisseur
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connoisseur
Joined: Nov 2005
Posts: 1,236 |
M3 and M80
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Re: For all the Pilots / WWII Buffs . . .
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Joined: Sep 2004
Posts: 11,458
shareholder in the making
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shareholder in the making
Joined: Sep 2004
Posts: 11,458 |
Ahhh, so I still have an eye for these things! Thanks, Ian!
::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::
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Re: For all the Pilots / WWII Buffs . . .
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Joined: Sep 2004
Posts: 11,458
shareholder in the making
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shareholder in the making
Joined: Sep 2004
Posts: 11,458 |
Wouldn't stop most of the AA flak anyway, so why add the weight?
::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::
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Re: For all the Pilots / WWII Buffs . . .
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Joined: Dec 2008
Posts: 6,928
axiomite
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axiomite
Joined: Dec 2008
Posts: 6,928 |
Also helps if you need to take a .....
Half of communication is listening. You can't listen with your mouth.
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Re: For all the Pilots / WWII Buffs . . .
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Joined: May 2003
Posts: 18,044
shareholder in the making
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shareholder in the making
Joined: May 2003
Posts: 18,044 |
Cool stuff. Incidentally, I was told by a fantastic docent at the Air and Space Museum in Dulles that the Huey's unique sound is also because the ends of the blades go supersonic.
I am the Doctor, and THIS... is my SPOON!
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Re: For all the Pilots / WWII Buffs . . .
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Joined: Nov 2010
Posts: 901
aficionado
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aficionado
Joined: Nov 2010
Posts: 901 |
That's so you can get up to speed on the runway.
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Re: For all the Pilots / WWII Buffs . . .
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Joined: Sep 2004
Posts: 11,458
shareholder in the making
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shareholder in the making
Joined: Sep 2004
Posts: 11,458 |
::::::: No disrespect to Axiom, but my favorite woofer is my yellow lab :::::::
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Re: For all the Pilots / WWII Buffs . . .
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Joined: Feb 2005
Posts: 5,211
axiomite
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axiomite
Joined: Feb 2005
Posts: 5,211 |
That's awesome Ian!
For those that know about these things: Is this plane related to the P47? That's what this looked like to me..... I believe the P47 is the fixed gear version of the Harvard. Are you guys referring to the P47 Thunderbolt? If so, it is no relation whatsoever to the Harvard. The Harvard is a variant of the T-6 Texan and I believe the aircraft Ian is maybe thinking about is the predecessor to the Texan/Harvard, either the BT-19 or BT-15? The P47 Thunderbolt is powered by a Pratt & Whitney R2800, 2,500HP radial engine and has speed around 400+ mph, the P47 was used primarily as a successful ground attack aircraft in Europe. With WWII aircraft any aircraft with a 'T' designation was a trainer (T-6, BT-19 and etc..) 'P' designated Pursuit (P47, P51 and etc..) which was later changed to 'F' for fighter. BT19... BT15... And P47...
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Re: For all the Pilots / WWII Buffs . . .
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Joined: Feb 2005
Posts: 5,211
axiomite
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axiomite
Joined: Feb 2005
Posts: 5,211 |
Cool stuff. Incidentally, I was told by a fantastic docent at the Air and Space Museum in Dulles that the Huey's unique sound is also because the ends of the blades go supersonic. I don't believe that's entirely true Ken, although aircraft and helicopter propellers can go supersonic they aren't designed do so and become very inefficient at supersonic speeds. We'll have to ask Tom (exlabdriver) but it is my understanding that the advancing blade (the upwind blade of a forward moving helicopter) is limited in speed so that it will not go supersonic. I believe the unique sound from the Huey is due to the width and length of the blades rather than them going supersonic. Ken, here is a simple explanation... 'Because the blade is rotating, and not flying straight into the air, then the outer tip will be moving through the air faster than the base. In fact, the airspeed of the blade will increase as you move out. So what will happen is that the tips of the blades will be the first to reach mach 1. A shock wave will form at the tip of the blade. As the blade increases rotational speed, the shockwave will move along the blade as more of the blade goes supersonic. The big problem with this is that the blades really aren't designed to withstand the stresses of supersonic travel. They will end up disintegrating. It also means that a portion of the blade will be 'transonic' (at or near the speed of sound). In this region there are problems with airflow and controllability, which will severely hamper the performance of the blade. Loss of lift and poor control will be major symptoms. Noise is the other issue.'
Last edited by RickF; 05/28/12 07:17 PM.
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