Rotary Wing Forum  

Go Back   Rotary Wing Forum > Rotorcraft > The Rotorcraft History Channel

Reply
 
Thread Tools Rating: Thread Rating: 8 votes, 5.00 average. Display Modes
  #1  
Old 04-22-2012, 12:03 AM
kolibri282's Avatar
kolibri282 kolibri282 is offline
Platinum Member
 
Join Date: Aug 2009
Location: Duesseldorf
Posts: 1,995
Default Early Pitcairn Gyros

Three pictures of early Pitcairn Autogyros
http://www.flickr.com/photos/sdasmar...n/photostream/
http://www.flickr.com/photos/sdasmar...n/photostream/
http://www.flickr.com/photos/sdasmar...n/photostream/

Enjoy!
__________________
Cheers,

Juergen

..Il semble que la perfection soit atteinte..
....non quand il n'y a plus rien à ajouter,...
...mais quand il n'y a plus rien à retrancher...
- Antoine de Saint-Exupéry -
Reply With Quote
  #2  
Old 04-22-2012, 10:54 AM
OuterMarker's Avatar
OuterMarker OuterMarker is offline
new in the nest
 
Join Date: Dec 2007
Location: Batavia, Illinois
Posts: 499
Default

I like those!!! You can really see a lot of detail in the simple construction methods.
Reply With Quote
  #3  
Old 04-23-2012, 11:50 AM
kolibri282's Avatar
kolibri282 kolibri282 is offline
Platinum Member
 
Join Date: Aug 2009
Location: Duesseldorf
Posts: 1,995
Default

Albert, did you notice this one?
http://www.rotaryforum.com/forum/sho...let#post413887

You might also like these:
http://www.rotaryforum.com/forum/sho...021#post472021
http://www.rotaryforum.com/forum/sho...ighlight=13908
http://www.rotaryforum.com/forum/sho...let#post413887
__________________
Cheers,

Juergen

..Il semble que la perfection soit atteinte..
....non quand il n'y a plus rien à ajouter,...
...mais quand il n'y a plus rien à retrancher...
- Antoine de Saint-Exupéry -

Last edited by kolibri282; 04-23-2012 at 01:06 PM.
Reply With Quote
  #4  
Old 04-26-2012, 11:02 AM
Stingray's Avatar
Stingray Stingray is offline
Brony Rotorhead
 
Join Date: Oct 2010
Location: Lake County, California, United States
Posts: 63
Send a message via MSN to Stingray Send a message via Skype™ to Stingray
Default

Pitcairn PA.38 attack autogyro:


(Info from "Cierva Autogiros: the Development of Rotary Wing Flight",
Peter W. Brooks, Airlife, 1988, page 226)

Quote:
Designation of a series of design studies undertaken for a USAAC design competition (Spec XC-417, circular proposal 40-260), which closed on April 22, 1940. These were of a large jump take-off autogiro of 4,200lbs loaded weight, suitable for military observation or cargo; mail carriage; insecticide-dispensing of forest fire-fighting. Kellett submitted studies of two direct-control designs without jump take-off capability. None of the studies was proceeded with. The Army contract went to Platt-LePage for their XR-1 helicopter.
Attached Thumbnails
Click image for larger version

Name:	pitc-pa38art.jpg
Views:	185
Size:	50.2 KB
ID:	92665  
__________________

My Website:
Stingray's List of Rotorcraft
My Forum: (anyone is welcome to join!)
http://stingraysrotorforum.activeboa...rk?aBID=126840
Reply With Quote
  #5  
Old 04-26-2012, 11:07 AM
Stingray's Avatar
Stingray Stingray is offline
Brony Rotorhead
 
Join Date: Oct 2010
Location: Lake County, California, United States
Posts: 63
Send a message via MSN to Stingray Send a message via Skype™ to Stingray
Default

http://www.airventuremuseum.org/coll....asp#TopOfPage

Quote:
The PA-39 was developed to serve as an observation aircraft protecting shipping convoys from submarines. Only seven PA-39s were built for the British Air Ministry, and N3908 is the only remaining example. The others were sunk being shipped to Britain or lost in training and test flight accidents.
Attached Thumbnails
Click image for larger version

Name:	Pitcairn PA-39.jpg
Views:	151
Size:	123.0 KB
ID:	92666   Click image for larger version

Name:	PA-39_01.jpg
Views:	85
Size:	60.0 KB
ID:	92667  
__________________

My Website:
Stingray's List of Rotorcraft
My Forum: (anyone is welcome to join!)
http://stingraysrotorforum.activeboa...rk?aBID=126840
Reply With Quote
  #6  
Old 04-26-2012, 02:50 PM
Stingray's Avatar
Stingray Stingray is offline
Brony Rotorhead
 
Join Date: Oct 2010
Location: Lake County, California, United States
Posts: 63
Send a message via MSN to Stingray Send a message via Skype™ to Stingray
Default

Pitcairn PA-44 (XO-61/YO-61) twin-boom observation aircraft:

The design was submitted by Pitcairn at a time when the company was operating as the Pitcairn-Larsen Autogiro Company (circa late 1940). The aircraft was ordered in 1941 by U.S.A.A.F. from the A.G.A. Aviation Corporation, a company which had since taken over the activities of the former Pitcairn Autogiro Company.

http://ntrs.nasa.gov/archive/nasa/ca...2008020986.pdf

Info from "Cierva Autogiros: The Development of the Rotary-Wing Flight" Peter W. Brooks, Smithsonian Institution Press, 1988:

Quote:
Overall length: 28 ft 6 in (8.68 m)
Maximum take-off weight: 3,000-3,038 lb (1,360-1,378 kg)
Maximum speed: 103 mph (165 km/h)
Minimum speed: 29 mph (46 km/h)

Engine:
The 300-325 hp Jacobs R-915A3 (or R-915A-4) engine drove a constant-speed propeller, having a special low-pitch setting for rotor spin-up purposes. This was similar to the PA-39 and had originally been proposed by Paul Stanley when commenting on proposals for jump take-off put forward by Richard Prewitt in 1932.

Rotor diameter and blade section:
The XO-61 was originally designed with a 42 ft (12.8 m) rotor of NACA 230 series section. This was later increased in diameter to 48 ft (14.63 m).

Production:
In addition to one static test airframe, six (later reduced to one (42-13611)), of the type were originally ordered as XO-61, of which five (42-13612/13616) were to be supplied in YO-61 service test form. However, only two aircraft were completed—the first in the spring of 1943—and these were never submitted to the army for acceptance because the contract was canceled before testing had been completed. The cancellation occurred when the second aircraft had reached the flying stage. Neither went into service because of engineering problems (including ground resonance, said to be due to defective shock absorbers, and engine cooling difficulties); manufacturing delays (G. and A. Aircraft were preoccupied with their involvement in the Waco CG-4A Hadrian troop-carrying glider program); and the appearance of the first production helicopters, in the form of the Sikorsky R-4, which entered service early in 1944.

Comment:
The YO-61 represented almost the ultimate in development of the Autogiro concept as it had evolved over the preceeding twenty years. Cancellation of the YO-61 order finally terminated American Autogiro manufacture. Pitcairn had by then built rather more than a hundred Autogiros. Of this number, about twenty were rebuilt from earlier models, as if they were new. Harold Pitcairn progressively withdrew from his aviation interests at this time. However, from 1951 until his death in 1960, he found himself deeply involved in the rotary-wings patents lawsuit against the United States government. He died, accidentally, from a gunshot wound, seventeen years before the lawsuit was finally settled in his favor.
Attached Thumbnails
Click image for larger version

Name:	XO-61.JPG
Views:	109
Size:	58.2 KB
ID:	92673   Click image for larger version

Name:	XO-61 plan.jpg
Views:	285
Size:	91.7 KB
ID:	92674   Click image for larger version

Name:	1-watermark.jpg
Views:	311
Size:	122.6 KB
ID:	92675   Click image for larger version

Name:	2-watermark.jpg
Views:	223
Size:	128.6 KB
ID:	92676  
__________________

My Website:
Stingray's List of Rotorcraft
My Forum: (anyone is welcome to join!)
http://stingraysrotorforum.activeboa...rk?aBID=126840
Reply With Quote
  #7  
Old 04-26-2012, 04:18 PM
Stingray's Avatar
Stingray Stingray is offline
Brony Rotorhead
 
Join Date: Oct 2010
Location: Lake County, California, United States
Posts: 63
Send a message via MSN to Stingray Send a message via Skype™ to Stingray
Default

-SGTA-3 (Submerged Gas Turbine Autogyro)
-SGTA-5 autogyro
-CFA-3 (Cruise Fan Autigyro) Gyrodyne
-CFA-4 autogyro
Attached Thumbnails
Click image for larger version

Name:	SGTA3.png
Views:	77
Size:	118.0 KB
ID:	92681   Click image for larger version

Name:	SGTA5.png
Views:	67
Size:	106.5 KB
ID:	92682   Click image for larger version

Name:	CFA-3.png
Views:	82
Size:	105.7 KB
ID:	92683   Click image for larger version

Name:	CFA-4.png
Views:	72
Size:	91.6 KB
ID:	92684  
__________________

My Website:
Stingray's List of Rotorcraft
My Forum: (anyone is welcome to join!)
http://stingraysrotorforum.activeboa...rk?aBID=126840
Reply With Quote
  #8  
Old 05-24-2012, 10:00 PM
kolibri282's Avatar
kolibri282 kolibri282 is offline
Platinum Member
 
Join Date: Aug 2009
Location: Duesseldorf
Posts: 1,995
Default

Very nice (and high resolution) picture of Amelia Earhart and her PCA-2. Sitting comfortably on a wheel she gives scale to this pretty massive aircraft.
http://explorepahistory.com/kora/fil...k8w0-a_349.jpg
Reply With Quote
  #9  
Old 11-01-2014, 02:24 AM
kolibri282's Avatar
kolibri282 kolibri282 is offline
Platinum Member
 
Join Date: Aug 2009
Location: Duesseldorf
Posts: 1,995
Default

PCA-2 used for banner tow. Wonder whether "Adler Shoes for Men" are still available..;-)
http://collections.si.edu/search/tag...ro&inline=true

Picture from another thread:
http://cabbagingcove.tumblr.com/image/25579274014

Plus links to other Pitcairn threads, I should really have kept stuff in just one thread....sighhh
http://www.rotaryforum.com/forum/showthread.php?t=39714
http://www.rotaryforum.com/forum/showthread.php?t=39535
__________________
Cheers,

Juergen

..Il semble que la perfection soit atteinte..
....non quand il n'y a plus rien à ajouter,...
...mais quand il n'y a plus rien à retrancher...
- Antoine de Saint-Exupéry -

Last edited by kolibri282; 11-01-2014 at 02:46 AM.
Reply With Quote
  #10  
Old 12-08-2014, 02:29 AM
kolibri282's Avatar
kolibri282 kolibri282 is offline
Platinum Member
 
Join Date: Aug 2009
Location: Duesseldorf
Posts: 1,995
Default

High Resolution picture of the PA-18
http://eaavintage.org/wp-content/upl...togiro_rgb.jpg
From here:
http://www.bing.com/images/search?q=...ectedIndex=273
Reply With Quote
  #11  
Old 12-11-2014, 10:37 PM
kolibri282's Avatar
kolibri282 kolibri282 is offline
Platinum Member
 
Join Date: Aug 2009
Location: Duesseldorf
Posts: 1,995
Default

Quote:
The hardest thing in aerial travel, nowadays, is not to fly, but to get quickly to and from the airport
From here: http://blog.modernmechanix.com/mags/...1/air_docs.jpg
Using autogyros as commuters seemed a good idea back then. How do we convince companies running todays airports to build flat roofs?......


PS: for some reason the link to the original mechanics page is dead

Last edited by kolibri282; 12-12-2014 at 12:20 AM.
Reply With Quote
  #12  
Old 12-20-2014, 08:38 AM
kolibri282's Avatar
kolibri282 kolibri282 is offline
Platinum Member
 
Join Date: Aug 2009
Location: Duesseldorf
Posts: 1,995
Default

The picture below is available as a wallpaper here:
http://www.warbirddepot.com/desktop_...bruary2012.asp

Much as I liked the plane I thought the scenery is too cluttered with modern stuff, so I removed a few things and added an inch or so to each side to make it 16:9.

http://www.divshare.com/download/26585776-258


Please note that IMO the modified picture is still copyright Mike Shreeve, so if you want to use is commercially please contact him.
Attached Thumbnails
Click image for larger version

Name:	Pitcairn_PA-18_small.jpg
Views:	3
Size:	64.0 KB
ID:	116228  
__________________
Cheers,

Juergen

..Il semble que la perfection soit atteinte..
....non quand il n'y a plus rien à ajouter,...
...mais quand il n'y a plus rien à retrancher...
- Antoine de Saint-Exupéry -

Last edited by kolibri282; 12-20-2014 at 10:27 PM.
Reply With Quote
Reply

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -8. The time now is 02:40 PM.


Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Ad Management plugin by RedTyger
You Rated this Thread: