PPRuNe Forums - View Single Post - Airbus Helicopters offering X3/Racer to US Army
Old 24th Feb 2019, 12:40
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JohnDixson
 
Join Date: Mar 2007
Location: Hobe Sound, Florida
Posts: 953
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Thanks, BH9-had not heard about Australia actually using the 130 transport kit.

I realized that I didn’t finish the raised rotor/performance story. The actual UTTAS forward flight spec data point requirement was: At Design Gross Weight and at 4000’/95F, the cruise speed requirement was 145 KTAS. In order to make that point, we did a long list of aerodynamic cleanup on the fuselage, added rotor diameter thru extended main blade tip caps, and utilized the stabilator to optimize fuselage trim attitude ( in fact that was a secondary but significant factor in the decision to add the FBW stabilator ). Note of interest re the stabilator technology: a few years later, I was at Ft Rucker and had a chance to look at a new production AH-64. Walking around their stabilator I noticed a familiar appearance in the stabilator actuator, and got down to look at the part number. it began with 70-xxxx etc-. UH-60 part numbers all start with 70-xxx etc.
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