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Author Topic: Platt-LePage XR-1 and XR-1A twin-rotor helicopters  (Read 16495 times)

Offline Skyblazer

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Re: Platt-LePage XR-1 and XR-1A twin-rotor helicopters
« Reply #15 on: March 08, 2011, 12:10:01 am »
They had a great design, they had the first aircraft to be purchased in the "R- for Rotary" class, and on top of that it looked just GREAT... Why on Earth did they close business and sell the design to McDonnell, who obviously didn't do much with it afterwards?  ???

Offline Platt-LePage Aircraft

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Re: Platt-LePage XR-1 and XR-1A twin-rotor helicopters
« Reply #16 on: March 08, 2011, 07:12:12 pm »
Platt-LePage ran out of cash, and the company was liquidated, there are a couple of other things that happened that accelerated their demise.

There was just no chance of any further orders from the military, so they ran out of options and time, right as the postwar aviation boom went bust.

They sold the PL-9 design to McDonnell during the war, they simply did not have the means to build the design without a military contract, which was not going to happen due to the difficulties with the XR-1 program.

McDonnell unfortunately took too long to develop the XHJD-1, so the lateral tandem became a dead issue with the military.

Offline hesham

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Re: Platt-LePage XR-1 and XR-1A twin-rotor helicopters
« Reply #17 on: May 02, 2012, 03:56:46 pm »

Offline Skyblazer

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Re: Platt-LePage XR-1 and XR-1A twin-rotor helicopters
« Reply #18 on: November 28, 2012, 12:35:09 pm »
An item on the XR-1A's post-war career at HAT, taken from FLYING, August 1947:

Offline Platt-LePage Aircraft

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Re: Platt-LePage XR-1 and XR-1A twin-rotor helicopters
« Reply #19 on: December 01, 2012, 11:04:55 am »
Unfortunately most of the story of the XR-1A at HAT is a load of B.S., that came from ex test pilot Lou Leavitt.
Platt-LePage and HAT never were able to carry out the actual deal for what would have been done with the XR-1A airframe.

Lou Leavitt oversaw the reassembly of the XR-1A, the story he told about how HAT obtained the airframe differs greatly from the actual contract papers from Platt-LePage. (I have all the papers)

The XR-1A did fly again, though HAT could do no commercial work with the helicopter as it carried an experimental license, they wanted to sell the helicopter as HAT was in deep financial trouble of their own.

Shortly there after, HAT went bankrupt, and Frank Piasecki bought the XR-1A for sentimental reasons for $1500. at HAT's bankruptcy sale. Pi paid Lou Leavit to fly the XR-1A from Camdem NJ, to Piasecki Helicopter. (You can see the flight on youtube)



Frank kept the XR-1A for many years, bringing it Piasecki Aircraft in Essington PA, after it's use as a mock up for the PA2 "Ring-Wing", his works manager scrapped the airframe without telling Frank, as Piasecki had intended to keep the old helicopter in memory of his days at Platt-LePage. (Frank kept a lot of helicopter stuff)
« Last Edit: December 01, 2012, 07:59:15 pm by Platt-LePage Aircraft »

Offline Platt-LePage Aircraft

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Re: Platt-LePage XR-1 and XR-1A twin-rotor helicopters
« Reply #20 on: December 01, 2012, 01:45:46 pm »
XR-1A lift off at Camden NJ



Offline Skyblazer

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Re: Platt-LePage XR-1 and XR-1A twin-rotor helicopters
« Reply #21 on: December 01, 2012, 03:32:29 pm »
Thanks for the precious input as usual!

Offline hesham

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Offline Platt-LePage Aircraft

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Re: Platt-LePage XR-1 and XR-1A twin-rotor helicopters
« Reply #23 on: January 07, 2016, 05:47:56 am »
Basically an artists concept, that was also used a schematic for one of Haviland H. Platt's patents. I'll post an original photo of the art work sometime.

The real twin engine Platt-LePage designs, were the PL-9, PL-14 Amphibian, and two heavy lift designs, (A Flying boxcar helicopter, and a "Skycrane" tandem fuselage helicopter)...and the twin engine Tilt-Rotor.

Online Maveric

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Re: Platt-LePage XR-1 and XR-1A twin-rotor helicopters
« Reply #24 on: January 07, 2016, 06:09:17 am »
Thanks for this Info. Do you have pics or drawings of the P.L. 9 and 14?
I see you on the dark side of the moon.

Offline Platt-LePage Aircraft

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Re: Platt-LePage XR-1 and XR-1A twin-rotor helicopters
« Reply #25 on: January 09, 2016, 12:07:21 am »
Yes, I have drawings and the engineering data for the PL-9 and PL-14, and all the other designs...

Offline hesham

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Re: Platt-LePage XR-1 and XR-1A twin-rotor helicopters
« Reply #26 on: January 09, 2016, 03:49:09 am »
Yes, I have drawings and the engineering data for the PL-9 and PL-14, and all the other designs...

Please can you send them here,and thanks.

Offline Platt-LePage Aircraft

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Re: Platt-LePage XR-1 and XR-1A twin-rotor helicopters
« Reply #27 on: February 04, 2016, 05:33:05 am »
The concept drawing of the PL-13 Helicopter, also used as a schematic for one of Haviland Platt's patents for a twin engine rotor drive system.

It was mainly used for publicity as a possible "this is coming postwar concept",  and was the only image of a Platt-LePage type machine allowed to be published at the time.

The Air Corps prohibited Platt-LePage from issuing any photos of their XR-1/XR-1A helicopters for publicity use, until the summer of '44 when the XR-1A was delivered to Wright Field. (Which is why there were so few photos published during WWII)

A scan of the PL-13 from the collection...


Offline hesham

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Re: Platt-LePage XR-1 and XR-1A twin-rotor helicopters
« Reply #28 on: February 04, 2016, 08:31:38 am »
Excellent Platt-LePage,we hope to get all his work.

Offline hesham

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Re: Platt-LePage XR-1 and XR-1A twin-rotor helicopters
« Reply #29 on: May 04, 2017, 06:18:48 am »
Excellent Platt-LePage,we hope to get all his work.

I hope to see all PL list,also this strange Project for Haviland Hull Platt;

Vertigiro c.1935 - Design for a helicopter having a single rotor with movable vanes in the rotor downwash for anti-torque control. Interestingly, an article by W Laurence LePage in the Oct 1936 Journal of the Franklin Institute was the first summary of Rotary Wing progress. Platt's patent #2,074,805 of the control system shows a three-view drawing of a multi-seat version, and at some point there was collaboration between Platt and LePage on this design that apparently never went beyond the model stage.

http://www.aerofiles.com/_pl.html