Bell 412 Hovering turn rate limitations
Thread Starter
Joined: Dec 2020
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From: Indonesia
Bell 412 Hovering turn rate limitations
I can't seem to find Bell 412 limitation on hovering turn rate limitation. Can anyone help me how many seconds are permitted to perform 360 degrees hovering turn?
Joined: Jun 2002
Aviation Qualifications: PPL
Posts: 5,100
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From: east ESSEX
Work it out from your max sideways speeds,ie 15 kts =25ft/sec,;Radius of T/R,from M/R ==`X` FT,circum.==3.142x 2X.=Y.
divide `Y` by 25 -=`z` seconds...360 /z =ROT....SIMPLES!!
divide `Y` by 25 -=`z` seconds...360 /z =ROT....SIMPLES!!
Thread Starter
Joined: Dec 2020
Posts: 2
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From: Indonesia
Joined: Oct 1999
Aviation Qualifications: ATPL
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From: Den Haag
Flyingtins - there may not actually be a published maximum yaw rate (I don't recall one for the B212, and looking at the FSI B412 Pilot Training Manual I don't see any reference to it). I have flown several types that did not have one published in the RFM. The two types that did were both Sikorsky's products (S76 and S92) and had the same limit of 12 degrees per second, which tends to suggest they are not a true limitation (due to structural or controllability issues) but simply the maximum demonstrated yaw rate during testing.
