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Vintage RC Helicopters - Kalt JetRanger
Kalt JetRanger (1972) Follow on model from the original Kalt Cobra 450 utilizing Kalt's version of flatbed mechanics with fixed pitch rotor head.
Kalt JetRanger 500
By the end of the 70's, fixed pitch control had generally been assigned to 'trainers' and so the JetRanger was upgrade to take a collective pitch head and autorotation clutch. In line with Kalt's policy the kit was provided without a rotor head and the customer chose the specification of the head themselves. For this later model the OS 50H became the minimum size recommended engine and thus this version was given the '500' tally to differentiate from the original fixed pitch version.
By 1982 the flatbed mechanics had been upgraded with autorotation and though the catalogue photo's above show a flybarless head, the basic kit was marketed to include the K-1SB rotor head assembly as noted in the photo's below; the '500' designation was also 'dropped'.
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