Guys........get it right before your OEI in a critical phase occurs....!!!!..or it will hurt.
Good to see old Nigel has found the pump for his wheel chair tyres....
Remember the Oil Platform is a thing to avoid at all costs if you have anything except both engines running wide open..!!!
From a purest point of view,yes the HV curve is in the limitations section....however remember......BHT also tolerate, Winching, Slinging, Longlining and Oil Patform T/o and Landings......
Cat A......geee guys........There is NO place for Cat A is todays Oil Operations......remember what Cat A is designed for..???...
*To ensure a safe OEI reject or safe flyaway after an OEI event for a specific known take off distance.....and reduce the T/O Wt until that performance can be achieved.........and the relevance to Offshore..?.....not much.
A safe departure?.....as per old Nigel......however a 15 nose down or attitude change would be nicier........and there should be no difference for your night verses day technique...remember your Nr droop doesnt know the time of day....nose held down until your airspeed is alive then reduce your nose down attitude......remember its better to be closer with the surface [water] with a healthy Nr and close to Vtoss than at 150 ft with the low NR warning on and no IAS.......farewell indeed.
The suggestion of backing back off an Oil Platform is horrific....in the OEI configatation the oil rig is your bitter enemy....better the water than an impact on the deck [hovering auto excepted]......once CDP is reached at around 15 feet....15 nose down and get out of there.........
OEI before the commited point on approach.....get out of there...overshoot.
Keep your Nr UP.
PS.....Move to the deck edge.......Rotor tips inline with the edge.......not over it........