ACRO E-mail Archive Thread: [Acro] Pitts S2A, which is best Tailwheel system ?
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Thread: [Acro] Pitts S2A, which is best Tailwheel system ?
Message: [Acro] Pitts S2A, which is best Tailwheel system ?
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From: "Wayne Jack" <wayne.jack at xtra.co.nz>
Date: Tue, 30 Apr 2002 23:52:37 UTC
Help , Ive got problems ! Can someone suggest the most reliable of the Steerable tailwheel options for a Factory S2A . I have had Haigh (castoring)and Maule steerable, and both have been constantly troublesome as follows. My S2A(certified Air Transport Op's) was bought with the Haigh tailwheel installed, little red nylon tyre(elevator wheel,best suited to a Grand Piano !) was wearing out too quickly, and was buying them in bulk at considerable cost, also took it's toll on the brake pads, due added requirement to use diff braking in crosswinds due no steering with that system. Actually caused several brake failures on one side, fortunately without major incedent. Replaced the Haigh with Maule steerable unit, with the solid rubber (heavy) tire. This has been less than acceptable aswell, with the single casting axle arrangement having failed (snapped off) several times, along with constant wheel bearing attention required and resultant tailwheel overtaking the aircraft on rollout (happened once). Seems almost impossible to predict the failure of the casting, as crack checking during 50hr inspections doesnt always detect the forthcoming problem. Whats the answer here ? Scott steerable ? (inflatable wheel) Lang steerable ? Something with a twin forked axle (not a casting) ? thanks anyone with a cunning solution ! Wayne ZK-FXT Attachement 1: part2.html