Scenario: [B] Take off from a oil platform that is at 100' amsl.
Helicopter: Bell 412 SP, 11400 lbs TOW. (2 crew, 10 pax + baggage/freight.)
Weather: Sea level, OAT-32 degrees C, Wind-Light and variable, QNH-1013 Mbar.
On rotation you loose an engine and through your superior handling skills, knife edge reactions, you prevent ditching and after nursing your helicopter, climbing at the guaranteed 150 feet/minute ROC at 65 kts, you eventually reach a safe flight condition and altitude.
Now having to fly back to a onshore alternate for a single engine landing, what would the realistic figures be one can expect for indicated airspeed in kts and fuel consumption in lbs/hr?
Data I have been given to work on is 90 kts and 700lbs/hr single engine at loiter power? Loiter power, then you will never reach your destination and I think 90 kts is pushing it?
Some expert advice will be appreciated please!
(I hope I didn't bring back to many scary nightmares
)