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Future Marine One - Sikorsky VH-92A lands at White House

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Ravendriver2008
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Future Marine One - Sikorsky VH-92A lands at White House

Post by Ravendriver2008 » Tue Nov 20, 2018 1:54 am

HMX-1 'White Side' future Marine One (L-M) owned Sikorsky VH-92A made its first landing on the White House lawn..

Cheers

http://www.thedrive.com/the-war-zone/25 ... house-lawn

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paddyboy
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Re: Future Marine One - Sikorsky VH-92A lands at White House

Post by paddyboy » Tue Nov 20, 2018 5:50 am

Tasty looking Trump chariot ;)
XH558, always the first lady in my life
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GreenBat
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Re: Future Marine One - Sikorsky VH-92A lands at White House

Post by GreenBat » Tue Nov 20, 2018 9:42 pm

Yeah, but will it be able to fly in the rain :pop:

wolfie138
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Re: Future Marine One - Sikorsky VH-92A lands at White House

Post by wolfie138 » Wed Nov 21, 2018 10:27 am

that's a nice looking machine.

as a totally random question; is there some reason why some copters have the tail rotor on the left, and some on the right?

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Skymaster
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Re: Future Marine One - Sikorsky VH-92A lands at White House

Post by Skymaster » Wed Nov 21, 2018 10:30 am

Balance reasons?

Agent K
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Re: Future Marine One - Sikorsky VH-92A lands at White House

Post by Agent K » Wed Nov 21, 2018 11:05 am

Is it not generally dependent on which way the rotors turn, clockwise or anti-clockwise? providing maximum area for the blades to "bite" into and avoiding the tailboom shielding the air.

Nighthawk237
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Re: Future Marine One - Sikorsky VH-92A lands at White House

Post by Nighthawk237 » Wed Nov 21, 2018 2:17 pm

The purpose of the tail rotor, is to prevent the body of the helicopter from spinning around in the opposite direction of the main rotor blades. The tail rotor's main function is to pull against the torque of the main rotor and hold the helicopter straight. In which case it probably wouldn’t matter which side the tail rotor is as long as it counteracts the action of the main rotor.

P.

wolfie138
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Re: Future Marine One - Sikorsky VH-92A lands at White House

Post by wolfie138 » Thu Nov 22, 2018 2:29 pm

so tail rotors are always pullers, not pushers?

turmo
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Re: Future Marine One - Sikorsky VH-92A lands at White House

Post by turmo » Tue Dec 11, 2018 1:37 pm

Agent K wrote:
Wed Nov 21, 2018 11:05 am
Is it not generally dependent on which way the rotors turn, clockwise or anti-clockwise? providing maximum area for the blades to "bite" into and avoiding the tailboom shielding the air.
It can vary. When Mil flipped the tail-rotor to port for the Mi-8MT / 17 they changed it from a pusher to a tractor ( puller ) and gained something like 20% more thrust for 'free' because the tail-rotor blades were now turning into the main-rotor downwash.

Bell's tail rotor positions varied between port and starboard depending upon the model's designer despite the rotor maintaining the same direction of rotation. The 205 flipped sides to port, can't remember which model, but the derived 209 & 214 kept it to starboard. The 222 was to port.

wolfie138
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Re: Future Marine One - Sikorsky VH-92A lands at White House

Post by wolfie138 » Wed Dec 12, 2018 10:04 am

very interesting, ta for the info.

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