Zitat:europa postete
Andermann
"Vielleicht, hätte aber den Vorteil das die Tragfläche, wenn sie senkrecht wie die Rotoren steht, einen geringeren Luftwiderstand erzeugen dürfte."
Könnte sein, irgendwelche Vorteile muss es ja geben sonst würde Boeing nicht solche Flugzeuge entwickeln.

Zitat:Und wenn die V-22 mitten über dem Meer, sie war ja für die Marines gedacht, ein problem hat kann sie nirgendwo landen.

Zitat:HLR (CH-53X) Helicopter Program Moves Toward Milestone B Approval
Sikorsky Aircraft Corp. in Stratford, CT received a $43.3 million cost-plus-fixed-fee delivery order against a previous basic ordering agreement (N00019-03-G-0003) to perform requirements definition and engineering studies in support of the Marine Corps' Heavy Lift Replacement (HLR) Program. While several awards under this contract covered the Presidential Helicopter program (as DID reported, Sikorsky lost) and other helicopter engineering, a similar $34 million HLR-related time and materials delivery order was issued on Dec 23/04.

The HLR program is also known as the CH-53X...

It calls for development and procurement of 156 new-build helicopters derived from the CH-53 Super Stallion, with first deliveries are planned for 2014. The new HLR will feature upgraded, engines, improved rotor blades, new avionics, new rotorhead, improved survivability, and longer service life. See also this interview with HLR program manager Col. Paul Croisetiere. [...]

Zitat:Marines Bring CH-53s Back From the Dead
The technical and testing delays in getting the MV-22 tilt-rotor transport aircraft into service, plus the heavy workload for U.S. Marine Corps heavy helicopters in Iraq and Afghanistan, has led to a desperate, and very rare, measure. The marines are restoring three mothballed helicopters to active service. This is rarely done. But the 150 CH-53 helicopters the marines currently use are old, and require a lot of maintenance to keep them going. So three similar MH-53E helicopters, which have been sitting in an Arizona storage site since the mid 1990s, are being refurbished to become CH-53s. [...]

Zitat:Bell-Boeing gets $3.45 million Army contract

The Boeing Co. and Bell Helicopter have landed a $3.45 million contract to do conceptual design and analysis of the Quad TiltRoter aircraft for the U.S.Army's Joint Heavy Lift Program.

Bell Boeing's QTR is an evolutionary application of its tiltrotor technology used in the V-22 Osprey. The QTR is a tandem-wing, four-proprotor aircraft with a large cargo fuselage and a rear-loading ramp. ...

Zitat:CH-53X HLR & JHL: Future Heli Programs on Collision Course?
The US Army, in cooperation with its Joint Service and NASA partners, recently announced the award of five agreements/contracts for the Concept Design and Analysis (CDA) of a Vertical Takeoff and Landing (VTOL) Joint Heavy Lift (JHL) rotorcraft. This is a futuristic aircraft that would carry roughly the capacity of a modern C-130 Transport, but with the ability to take off and land like a helicopter. No current US military helicopter platform even comes close. To meet this goal, the competitors are deploying some radical and different technologies in their proposals.

At the same time, the US Marine Corps' vital medium-heavy lift CH-53E Super Sea Stallion helicopters are beginning to to wear out their airframes. Hence the HLR Heavy Lift Replacement program, aimed at fielding new-build CH-53X aircraft beginning in 2012. [...]

Zitat:Bundeswehr - Alte Hubschrauber werden für 690 Millionen modernisiert

CH-53 soll noch zwei Jahrzehnte durchhalten.
Von Hans-Jürgen Leersch

Berlin - Die Bundeswehr muss bis 2014 rund 690 Millionen Euro in die seit 30 Jahren eingesetzten Transporthubschrauber vom Typ CH-53 investieren, um die 100 Maschinen flugfähig zu halten. Dies geht aus den der WELT vorliegenden Erläuterungsblättern zum Haushalt 2006 des Verteidigungsministeriums hervor. Eine Anschaffung neuer Hubschrauber ist derzeit nicht geplant.

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Zitat:Die FDP-Wehrexpertin Elke Hoff sieht falsche Prioritäten bei der Rüstungsplanung von Verteidigungsminister Franz Josef Jung (CDU): "Wir leisten uns teure Sachen wie den Eurofighter und schicken unsere Soldaten mit 30 Jahre alten Hubschraubern in den Kongo." Hoff verlangt: "Die Planung muss kompatibel werden mit den tatsächlichen Aufgaben."