S61N question
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S61N question
Hi everybody,
does anyone know if the S61N has ever been tested and/or certified and/or went through a SHOL (Ship and Helicopter Operating Limits) to land onboard ships (that means sailing ships) like the military choppers do?
I wonder if anyone knows which are the pitch and roll limits, if there are any, if a standard wind envelope exists...this sort of stuff.
Thanks to you all
does anyone know if the S61N has ever been tested and/or certified and/or went through a SHOL (Ship and Helicopter Operating Limits) to land onboard ships (that means sailing ships) like the military choppers do?
I wonder if anyone knows which are the pitch and roll limits, if there are any, if a standard wind envelope exists...this sort of stuff.
Thanks to you all
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From the Ops Manual:
Semi-subs, large barges and FSU's ............. 3 deg / 5 m
Large Ships ............................................ 2.5 deg / 4 m
Bow Decks ............................................. 2.0 deg / 3 m
Stern & Amidship .................................... 2.5 deg / 3 m
Oil Tanker, moored buoys.......................... 2.0 deg
Semi-subs, large barges and FSU's ............. 3 deg / 5 m
Large Ships ............................................ 2.5 deg / 4 m
Bow Decks ............................................. 2.0 deg / 3 m
Stern & Amidship .................................... 2.5 deg / 3 m
Oil Tanker, moored buoys.......................... 2.0 deg
Probably Bristow (sorry - I replied to an old page so didn't see the response!) I'd guess from his location, but those figures are standard North Sea figures as you will see from this link:http://www.helidecks.org/download%20...0p%20r%20h.pdf
To the best of my knowledge, the various values are empirically based and not as a result of formal 'SHOLs type' trials. The future trend in the North Sea is to move away from P/R/H figures and towards a more useful measurement of total motion severity.
To the best of my knowledge, the various values are empirically based and not as a result of formal 'SHOLs type' trials. The future trend in the North Sea is to move away from P/R/H figures and towards a more useful measurement of total motion severity.
Last edited by 212man; 22nd Aug 2010 at 10:00.