BH412 vs BH412SP hover performance
Hi all,
My company operates Bell 412SP with a BLR strake kit on their tail as well as early model a/c which are basically 212 with 4 blade rigid rotor which are called by some IGW ( Increased Gross Weight)
The so called IGW a/c have better hover and takeoff perf. (the basic weight is the same as the SP a/c). some pilots estimate the differences being more than 5% Tq
Does anyone have any insights as to why that might be?
I am also looking for hover performance charts as opposed to the max weight for hover that is provided in the civilian flight manual, any idea where to get such charts?
Thank you
Eran