View allAll Photos Tagged Propeller
Original 2D with details:
astroanarchy.blogspot.com/2011/10/first-light-for-autumn-...
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Twitter Photochallenge #TwPhCh
Challenge #015
Upload #1
Assignment: Curves, lines and shapes
I was attending a yearly event called "Fotografiets dag" (Day of the photograph) today and was inspired by a large retired submarine that is put on display outside the museum. The gigantic propeller has beautiful curves and a ragged edge that contrasts them.
This is a propeller on a Seversky P-35 at the National Museum of the United States Air Force at Wright-Patterson Air Force Base in Dayon, Ohio.
This propeller was one of four from the Liverpool based passenger liner RMS Lusitania ( 1907 ) . She sailed between Liverpool and New York until she was torpedoed by the German submarine U20 on the 7th May 1915 with the loss of 1,201 lives .
Lusitania and her sister ship Mauretania were owned by Liverpool's Cunard Line and carried passengers and mail on regular services to the USA . Lusitania held the Blue Riband for the fastest crossing of the Atlantic by a passenger vessel , making the journey in under 4.5 days . This propeller was fitted in 1909 to improve her speed .
Lusitania continued her transatlantic run after the outbreak of World War I until she was torpedoed and sank in under twenty minutes off the coast of southern Ireland . People were outraged at the deliberate targeting of a passenger ship and Lusitania's fate still causes controversy today .
I'm not sure whether this was a weed or a flower, but I quite liked how it looked against the blue forget me nots in the background!
It's another one taken with my Sony NEX-7 and Nikon 105mm Macro combination.
This is the result of me basically going around the garden and photographing anything that looked half interesting, trying to hone my manual focus skills!
I think I'm improving! :)
Hamilton Standard counterweight propeller
Oil pressure in the pitch-changing mechanism helps move the blades to a lower angle, while the counterweights help move the blades to a higher angle.
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SFO Museum
San Francisco International Airport
1) Hinged-Blade Research Propeller
This ten-foot experimental propeller was ground-tested at McCook Field for the US Navy. Built by Paragon Engineers Inc., it was designed with hinged blades to permit it to adapt to changes in air pressure.
2) Micarta Controllable Pitch Propeller
This nine-foot propeller has "Bakelite Micarta" blades counterbalanced to permit their pitch to be changed in flight. Designed by McCook Field engineers for testing with the Wright-built 180-hp Hispano-Suiza engine, it was tested in 1922 at McCook field, but was not successful.
3) Olmstead High Efficiency Propeller
This unusual 9-foot propeller was designed in 1918 by Olmstead Laboratories and tested at McCook Field. It was intended for possible use on the Loening M-8 aircraft before the Air Service decided not to order the M-8 into production.
4) Curtiss Reed Propeller
Produced in the mid-1920s, this ten-foot aluminum alloy propeller was unique because its blades were mechanically twisted during manufacture to provide the necessary angle for thrust. PW-8 aircraft with Curtiss D-12 engines used this kind of propeller.
This beautiful B-26 (A20) rests at the VFW in El Reno, OK. Here's what the writing on the side of the plane says:
B-26 (A20)
Use donated by the U.S. Government and Oklahoma Air National Guard
Transported from Sheppard Field, Texas by members of V.F.W. Post #382 - El Reno, Ok
Assembled on location by J.L. Barry, Bill Barry, and Woody Henson
Dedicated Sept. 21, 1957
Another view of the folding propeller assembly and the simple fitting that coupled it to the engine when used in water.
This unique amphibious scout vehicle was used by the Wehrmacht during World War II. Apart from its "hull," it shared many of the essential features of early Volkswagen air-cooled vehicles.
For more information, see: www.mvtf.org
(L-1892): The PRT’s size is clearly evident in this classic photograph of Elton W. Miller, one of the PRT’s designers, standing in the tunnel’s entrance cone to inspect a Sperry M-1, the first airplane tested in the new facility. Note how the plane’s wings have been cropped, a practice that was soon seen as unnecessary and largely abandoned.
Credit: NASA
Image Number: L-1892
Date: Circa 1927
Plastic propeller on a wooden base, attached by Velcro to my bike helmet. It's not powered or propelled; it just spins in the breeze. Originally inspired by Val and her Viking horns.
Box with same design as the tessellation.
Lizard hide paper, hexagon from 24x24 square, 32 division grid.
Original 2D with details:
astroanarchy.blogspot.com/2011/10/first-light-for-autumn-...
Other 3D-formats: