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Forum: Rotorheads

13th Jan 2017, 16:26

Replies: 45

Retractable Undercarriage

Views: 8,185

Posted By Fareastdriver

You can't get the nosewheel to turn over unless...

You can't get the nosewheel to turn over unless you have forward motion.

In the old days with tailwheel undercarriages, S58/S61, and also the S60 you will not twist the boom but you will scrub...

Forum: Rotorheads

13th Jan 2017, 12:07

Replies: 45

Retractable Undercarriage

Views: 8,185

Posted By Fareastdriver

Not with tight turns, you don't. Just see at how...

Not with tight turns, you don't. Just see at how much twist on the boom there is when you put a load of tail rotor thrust on a helicopter that is stationary or slowly moving.

It is far better to...

Forum: Rotorheads

11th Jan 2017, 18:19

Replies: 45

Retractable Undercarriage

Views: 8,185

Posted By Fareastdriver

The Puma, and subsequent descendants, had a...

The Puma, and subsequent descendants, had a restrictor valve inserted in the nose jack at the down hydraulic entry to slow the lowering and avoiding it slamming against the internal stops. I had it...

Forum: Rotorheads

10th Jan 2017, 09:12

Replies: 45

Retractable Undercarriage

Views: 8,185

Posted By Fareastdriver

Some electrical gizmo upset by the VTA.

Some electrical gizmo upset by the VTA.

Forum: Rotorheads

9th Jan 2017, 14:47

Replies: 45

Retractable Undercarriage

Views: 8,185

Posted By Fareastdriver

Retractable undercarriages are fitted to...

Retractable undercarriages are fitted to helicopters for the same reason that birds fold their legs; it reduces drag. As a example when the S76A first came out there were occasions were there would...

Forum: Rotorheads

8th Jan 2017, 10:09

Replies: 45

Retractable Undercarriage

Views: 8,185

Posted By Fareastdriver

Pumas in the early days had cases when the...

Pumas in the early days had cases when the nosewheel would stick at 90 degrees before it retracted. You soon knew about it when a towing lug punched a hole in the nosewheel bay roof.

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