PPRuNe Forums - View Single Post - What's the latest news of the V22 Osprey?
Old 8th Feb 2011, 23:17
  #923 (permalink)  
FH1100 Pilot
 
Join Date: Nov 2006
Location: Pensacola, Florida
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jeffg:
-If less than -1g is to limiting for "combat aircraft" perhaps you or someone else could tell us what the positive and negative g limits are for the UH-60, OH-58, CH-53E, CH-46, CH-47, UH-1N, AH-1W, UH-1Y, AH-1Z?
Good question!

But it's kind of irrelevant.

In helicopter mode, the V-22 is limited to a pathetic +2.25g and -.5g. Just like a Bell 47? Well...not really.

For comparison purposes, a helicopter certified under FAR part 27 *or* part 29 (transport category) must endure limits of +3.5g and -1g. So any civilian helicopter can beat a V-22 in maneuvering limits. Let's look at airplanes!

In airplane mode, the V-22 has a limit of a measly +3.0g and -.75g.

Utility Category airplanes certified under FAR part 23 must meet a +4.4g limit and a -1.76g limit (.4 times the positive load factor).

Transport Category airplanes certified under FAR part 25 must meet a +3.8g and -1g limit.

So the V-22 still falls short - isn't even up to the same limits as a transport category fixed-wing. Damn. That's rough.

I did not bring up the lesser negative-g limitation for the V-22 in "converted" (or helicopter) mode. But I'm glad you did, Jeff! Let's leave combat aircraft out. The more appropriate comparison is between the V-22 and other Air Force fixed-wing aircraft. You know, like a C-130. What are its limits?

If the V-22 is flying along up high, which is supposed to be one of the "benefits" it brings to the table over a helicopter, then what good is it if it cannot even avoid missiles fired from the surface?
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