Some aircraft parts I picked up in Lincoln
We used to experience lane slip on the Canberras out of Pershore and as an observer I experienced it once in a Varsity. I never found a common problem with the receivers which caused this. Some pilots reported geographical areas where lane slip was prone to occur so I wonder if it related to loss of or distortion of the signal from one of the transmitters combined with the speed of the aircraft.
Decca roller maps were used by the helicopters operating over the North Sea certainly into the 1980's. For separation, odd radials out and even radials back in to Aberdeen as far as I remember.
Decca lane slip (on the Whirly) was, generally a result of winching - the static discharge from the cable/earth contact was the probable culprit.
That discharge could be pretty large ... we did a test sortie with the Farnborough boffins in the Littlehampton lifeboat and they reckoned that they had registered voltages around the 175k ! Forgetting to take your hand off the cable on touchdown gave an unmissable reminder !
That discharge could be pretty large ... we did a test sortie with the Farnborough boffins in the Littlehampton lifeboat and they reckoned that they had registered voltages around the 175k ! Forgetting to take your hand off the cable on touchdown gave an unmissable reminder !
Avoid imitations
Join Date: Nov 2000
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I experienced the static jolt from a Whirlwind whilst being winched down to the Bridlington lifeboat, in light rain. I hadn’t been briefed and it doubled me up….I inadvertently kneed the winch man where it hurts most. He wasn’t impressed.
