Boost Pump Question
Hi,
Question ref boost pump,
I'm asking in relation to an EC120, but I guess the question applies across a number of types.
1. It has been suggested to me by a pilot more experienced than myself that when conducting a hot start, the T4 temp control is a lot more easier to control if you do not select boost pump in contradiction to the POH, is this indeed the case or sensible practice? I find the T4 pretty easy to control anyway as long as the engine has been cranked down to 150 degrees or less.
2. Today I quickly repositioned the 120 and in my haste, from a v cold start I forgot to select boost pump, didn't realise until I went to deselect it once NG was stable. Other than opening the throttle open a little more positively initially it seemed to make very little difference to the way the engine started.
My conclusion is that the Boost pump makes very little difference to the start that you cannot control effectively with the throttle. Other than applying more fuel pressure if the flow becomes blocked what does it do? As it seems to make little difference when starting?
Thanks