Increasing engine power in a helicopter
Following on from the interesting and educational post on rolling take offs I have another question
When helicopter manufacturers install more powerful engines on the same model of helicopter for example how does this additional power increase performance ?
To clarify, is the additional power used to turn the main rotor faster and / or install a larger main rotor or is it just the ability to ‘pull more pitch’ a larger ‘bite of the air’ with the collective inputting a higher angle of attack and the additional power being used to maintain that angle without the rotor speed decaying ?
Perhaps a combination of the above ?
Getting more thrust out of a basic jet engine and how it improves performance on a fixed wing aircraft is simple and straightforward to understand
Trying to understand how it works with helicopters