Helicopter Thrust Calculation | Fuel Mass Included

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    Helicopter Thrust
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Discussion Overview

The discussion revolves around calculating the thrust required for a helicopter to take off when the mass of fuel is included. Participants explore how fuel mass impacts thrust calculations and the necessary information for such calculations.

Discussion Character

  • Technical explanation, Debate/contested

Main Points Raised

  • Some participants assert that the minimum thrust required at takeoff is equivalent to the weight of the helicopter.
  • Others question how to calculate thrust when the mass of fuel is provided, seeking clarification on the relevance of fuel mass in this context.
  • One participant suggests that fuel use is determined by the engine and that knowing the horsepower required for takeoff could help in calculating fuel usage.
  • Another participant emphasizes that the mass of fuel, unless referring to the use rate, does not contribute useful information for determining helicopter thrust.
  • A later reply acknowledges a misunderstanding, clarifying that the original poster likely wants to calculate thrust based on known fuel usage rather than the mass of fuel itself.

Areas of Agreement / Disagreement

Participants express differing views on the relevance of fuel mass in thrust calculations, with some agreeing that thrust is primarily determined by the helicopter's weight while others seek to clarify the role of fuel usage in this calculation. The discussion remains unresolved regarding the exact relationship between fuel mass and thrust.

Contextual Notes

There are limitations in the discussion regarding the assumptions made about fuel mass and its relevance to thrust calculations, as well as the dependency on definitions of terms like "mass of fuel" and "fuel use rate." Unresolved mathematical steps related to the calculations are also present.

astro2cosmos
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can anyone help me out to calculate the thrust when helicopter takes off with mass of fuel?
 
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Calculate how? From what starting information? The minimum thrust required at takeoff is the weight of the helicopter.
 
russ_watters said:
Calculate how? From what starting information? The minimum thrust required at takeoff is the weight of the helicopter.

i want to know how to calculate if mass of fuel is given?
 
Fuel use will be determined by the engine.

If you know the HP required for take off, you can work the fuel use from that.
 
astro2cosmos said:
i want to know how to calculate if mass of fuel is given?
Mass of fuel (unless you mean use rate) is not a piece of information that is useful in determining the thrust of a helicopter.
 
Oh I see, he knows how much fuel is used and wants to work out thrust from that.

I agree with you russ, I thought he meant how much fuel is used during take off.
 

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