Pelican Parts Forums - Random TRANSPORTATION pictures

The Vestas SailRocket looks unlike any other sailing vessel; a wing replaces a conventional sail and is attached to an outrigger rather than the hull – a design that does away with the need for ballast ................

http://www.sail-world.com/SailRocket-2--set-for-short-notice-Weymouth---Portland-Record-attempt/139070
http://www.one.sail-world.com/photos...2011%20051.jpg

http://www.thedailysail.com/dinghy/10/54298/vestas-sailrocket-in-london
http://www.thedailysail.com/files/ed...Rocket_800.jpg
http://www.thedailysail.com/files/ed...t%202a_470.jpg

07 Dec 2008
http://yachtpals.com/sailrocket-crash-video-4022
http://yachtpals.com/files/userimage...cket-crash.jpg

Quote:

As we reported earlier this week, the weird looking boat SailRocket is now the fastest sailboat in the world [pending ratification]. Before this sailing video was taken, SailRocket had already set a new world record, clocking an average of 47.35 knots over 500 meters, but the team was pushing for the overall speed sailing record, and it appears the "rocket" lived up to its name, launching itself and skipper Paul Larsen into high flight, and momentarily slipping the surly bonds of Earth.

Vestas Sailrocket 2: new sailing speed record
aBoatTime | November 27, 2012
http://blog.aboattime.com/vestas-sailrocket-2-new-sailing-speed-recod/
http://blog.aboattime.com/wp-content...ling-team.jpeg

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The record was set in moderate conditions with a 25 knot average wind, breaking the previous one of 51.36 knots reached by Alain Thebault team in L’Hydroptère in 2009.

Later on Sunday November 18, the Rocket Vestas Sail 2 team improved their own result reaching 59.38 knots of an average speed, which let them to set another record.

10 years of hard work fighting with changing failures and successes has paid of and let Larsen and his team to culminate as the greatest of all.

http://sailracewin.blogspot.com/2011/03/images-of-vestas-sailrocket-2.html
http://4.bp.blogspot.com/--RKj6YTu7O...cket%2B046.JPG
http://2.bp.blogspot.com/-Kx0Uqfl2XR...ket2%2B001.JPG

Wondering what happened to all fuel tanks jettisoned by U.S. fighter jets over Southeast Asia during Vietnam War?
Sep 18 2013
http://theaviationist.com/2013/09/18/fuel-tanks-se-asia/
http://forums.pelicanparts.com/uploa...1457954277.jpg
http://forums.pelicanparts.com/uploa...1457954285.jpg

Quote:

Several thousand drop tanks were jettisoned over Southeast Asia during the Vietnam War.

And here you can see what happened to some of those that were recovered.

The comments section says they were most likely stockpile tanks, dropped ones would have been crushed by the fall.

http://usastruck.com/tag/jet-fuel-tanks/
http://usastruck.files.wordpress.com...pg?w=500&h=375
http://usastruck.files.wordpress.com...pg?w=500&h=375

All Dillingham Boulevard lanes reopened | Honolulu Star-Advertiser
http://forums.pelicanparts.com/uploa...1457987064.jpg

Quote:

PHOTO BY BRUCE ASATO / BASATO@STARADVERTISER.COM
An Ameron Hawaii cement truck crashed through a steel plate over a trench, its rear wheels stuck in the trench and unable to get out on its own. Large tow trucks were called to the scene on Dillingham Boulevard to help to extricate the truck.

What's the benefit of an un-ducted fan?

Mas take offer power...

Quote:

Originally Posted by Flieger (Post 9037538)

What's the benefit of an un-ducted fan?

https://en.wikipedia.org/wiki/General_Electric_GE36
http://forums.pelicanparts.com/uploa...1458005281.jpg

Quote:

The General Electric GE36 was an experimental aircraft engine, a hybrid between a turbofan and a turboprop, known as an Unducted Fan (UDF) or propfan. The GE36 was developed by General Electric Aircraft Engines...............

The scimitar shape of the fan rotor blades enabled high flight speeds (about Mach 0.75) to be obtained.................

Although the engine demonstrated an extremely low specific fuel consumption, cabin noise levels were a problem..............

From what I recall, some wanted it for the Blended Wing Body designs, but those concepts were switched to ducted fans and turbofans once the noise issue of the GE36 became known.

Blended Wing Concept
http://www.blendedwings.com/_Media/b...ircraft-2.jpeg
http://www.blendedwings.com/_Media/3...ed-wing-2.jpeg

EDIT: found more...........

http://www.hfcletter.com/Content/BlendedWing.aspx
http://www.hfcletter.com/LibReposito...ac7e7a2e23.jpg

Quote:

A NASA rendering of two blended wing-body planes: one a jet and the other propeller-driven. Boeing is apparently also studying hybrid electric gas turbine propulsion.

Quote:

Originally Posted by Flieger (Post 9037538)

What's the benefit of an un-ducted fan?

not much, they were shelved