PPRuNe Forums - View Single Post - Dynamic rollover
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Old 17th Jun 2019, 12:57
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VP-F - the Sea King is much more susceptible to rollover and I don't know of any pitchover event but plenty of rollover close calls and actual rollovers.

The problem laterally is that you need left cyclic to displace the disc and counteract TR drift - the TR is trying to push the aircraft left and that force increases as you raise the lever and add power pedal (left). If not enough left cyclic is used, the right undercarriage tries to slide but becomes a pivot point around which the rollover happens. It is important therefore to ensure the right wheel comes off the ground first during a take-off.

The height of the TR means any nose down slope take off increases its moment about the C of G and a left crosswind exacerbates the problem by requiring more left cyclic..

You don't have the same effects in pitch.

However, with the mainwheels only in contact, it is possible in turbulence to overcontrol and push the cyclic far enough forward to impact the sand filter boxes in front of the engine intakes.
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