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Old 7th Sep 2010, 12:55
  #259 (permalink)  
Join Date: Jan 2008
Location: Deep South, UK
Age: 64
Posts: 110

A bit of thread drift - but the Trident had a main undercarriage with four wheels aligned laterally with the a/c - two on one axle and two on the other. This obviously would not retract into the fuselage so had to be swivelled through 90 degrees in the retraction process.

I think this was achieved by the oleo assy being driven down an outer barell with a helix in it. I think it had an A-frame mechanism on top of the gear which was fixed to the wing structure (rib 5?). As the gear went up the wheels rotated into the bay. PFM
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