About: Spitfire Mark II Tigershark     Goto   Sponge   NotDistinct   Permalink

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The Spitfire Mark II, later given the name Tigershark, was a utility helicopter built in the United States in the late 1970s and intended for series production. It was a further evolution of the Spitfire Mark I design, a turbine-powered conversion of the Enstrom F-28. Although airframe changes on the Mark I had been minimal, the Mark II had a substantially redesigned fuselage that rearranged the F-28's 2+2 seating to move the pilot's seat forward in the nose by itself and add a bench seat for three passengers abreast behind it. The leftmost seat on the bench could be fitted with dual controls. The fuselage was lengthened, and the powerplant installation (the same Allison 250 used on the Mark I) was mounted well to the rear. The Mark II still used the dynamic components of the F-28, plus so

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  • Spitfire Mark II Tigershark (en)
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  • The Spitfire Mark II, later given the name Tigershark, was a utility helicopter built in the United States in the late 1970s and intended for series production. It was a further evolution of the Spitfire Mark I design, a turbine-powered conversion of the Enstrom F-28. Although airframe changes on the Mark I had been minimal, the Mark II had a substantially redesigned fuselage that rearranged the F-28's 2+2 seating to move the pilot's seat forward in the nose by itself and add a bench seat for three passengers abreast behind it. The leftmost seat on the bench could be fitted with dual controls. The fuselage was lengthened, and the powerplant installation (the same Allison 250 used on the Mark I) was mounted well to the rear. The Mark II still used the dynamic components of the F-28, plus so (en)
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  • imp (en)
first flight
  • February 1979 (en)
national origin
  • United States (en)
capacity
  • three passengers (en)
crew
  • one pilot (en)
height ft
height in
length ft
manufacturer
ref
  • Lambert 1979, p.1580 (en)
type
  • utility helicopter (en)
unit cost
  • $US 305,000 in 1983 (en)
has abstract
  • The Spitfire Mark II, later given the name Tigershark, was a utility helicopter built in the United States in the late 1970s and intended for series production. It was a further evolution of the Spitfire Mark I design, a turbine-powered conversion of the Enstrom F-28. Although airframe changes on the Mark I had been minimal, the Mark II had a substantially redesigned fuselage that rearranged the F-28's 2+2 seating to move the pilot's seat forward in the nose by itself and add a bench seat for three passengers abreast behind it. The leftmost seat on the bench could be fitted with dual controls. The fuselage was lengthened, and the powerplant installation (the same Allison 250 used on the Mark I) was mounted well to the rear. The Mark II still used the dynamic components of the F-28, plus some of its airframe. Spitfire displayed a mockup of the Mark II at the meeting in Anaheim, California in February 1977. The prototype first flew in February 1979 and by July that year, the company reported that it had sold 42 examples of the Mark I and Mark II and expected to build 60 aircraft during 1980. However, Spitfire remained dependent on Enstrom to supply airframes for remanufacture, and Enstrom distanced itself from the project somewhat. Competing plans by Enstrom and Spitfire to market Polish-built Mil Mi-2 helicopters in the United States might have contributed to the friction. In Spitfire's version of the deal, Polish manufacturer PZL-Świdnik (represented by its trade bureau Pezetel) would also contribute to the Spitfire manufacturing efforts. By November 1979, Enstrom refused to supply airframes to Spitfire. The situation improved somewhat in the 1980s, and Spitfire president Jack Fetsko reported in May 1983 that relations with Enstrom were at the point where the two companies could "talk programs". By that time, costs for the Mark II, now dubbed the Tigershark, had increased from $US 185,000 expected in 1979 to $US 305,000 but Spitfire had a firm sale for the first production aircraft. Together with companies and , Spitfire formed a new venture, Spitfire Helicopters International, to manufacture the Mark I and Mark II in Málaga, Spain. Nothing came of the joint venture, and Spitfire's attempts to market F-28 derivatives came to an end. (en)
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  • Allison 250-C20B (en)
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gross weight kg
gross weight lb
height m
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