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Thrust would drop as altitude goes up.

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Q: What effect does altitude have on engine thrust at a constant rpm?
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What is the torque of one engine on a 747?

Jet engine power ratings are generally in terms of thrust, not torque. The 747 has undergone several engine redesigns. The Pratt & Whitney JT9D engine series varies from a maximum thrust of 46,300 to 50,000 lbf.


What is thrust specific fuel consumption of turbo shaft?

There is no such thing as thrust specific fuel consumption of a turboshaft engine, as a turboshaft is designed to deliver mechanical power, not thrust. This mechanical power can be converted into electric power by a generator or converted into thrust by a propeller or rotor. Basically, a turboshaft uses jet technology but is an alternative to a piston engine. While thrust specific fuel consumption doesn't exist for a turboshaft, "brake specific fuel consumption" does. It measures the rate of flow of fuel required for a certain amount of power. For example, a specific fuel consumption of 0.2 lbs/h/hp means that for every horsepower the turboshaft produces, it burns 0.2 lbs of fuel each hour.


Which gear type does not have axial thrust?

herring bone gear (Double helical ) doesn't axial thrust


How aircraft engine function?

with jet propulsion, Air is taken in at the front, than compressed by an compressor. Fuel is added tot the air and ignites. This drives the temperature higher, making the air expand and increase the pressure. After that a turbine takes some of the energy of the flow, decreasing the temperature and pressure and converts the energy into work. the work than is used to power the compressor. The exhaust provides a thrust for the airplane. with a propeller, an engine drives a propeller which provides thrust for the airplane


What is bypass ratio in gas turbine engine?

bypass ratio im an early singlr or twin-spool bypass engine is the ratio of cool air mass flow passed through the bypass duct to the air mass flow passed the high pressure system. Bypass ratio for the fan ducted bypass engine is the ratio of total air mass flow through the air fan stage to the air mass flow that passes through the turbine section/high pressure(engine core) system.A high bypass ratio i.e 5:1 is usually common with ducted fan engine.

Related questions

What is the relation between net thrust and gross thrust in a ramjet engine?

a net thrust is constant speed of an aircraft that dosent reduces.


What is engine thrust?

Thrust is the amount of power generated by the engine.


What is the horsepower of one engine in a Boeing 737?

This is the pure speculation. It is to imagine a piston engine and a propeller which would give same thrust as B737 jet engine. With B737 speed of 0.8 M at altitude and maximum attainable efficacy of a propeller (notwhistanding compressibility effects), for B737 engine (one engine) thrust of 8,400 to 11,300 kg, the Power would be from 32,000 to 43,500 HP per engine ! Vladimir


Where does a gas turbine engine get its best thrust specific fuel consumption?

I think it happens because of the altitude and the fuel burn rate get slower as they clam higher 10,000 fleet


What are the forces on an airplane?

There are four forces that act on an airplane that keeps it at a level altitude. Thrust, drag, weight, and lift determine whether a pilot flies at a level altitude.


Does thrust effect a paper airplanes?

An arm throwing it is causing the thrust.


What provides the force for thrust?

The engine provides force for thrust.


Which part of the airplane creates thrust?

The engine creates thrust.


As a rocket travels upwards the engine thrust remains constant but the mass of the rocket decreases Why?

The primary answer is that a rocket under constant acceleration is using up fuel, so it's mass decreases as the fuel is spent.


What causes the thrust of an airplane?

The engine causes thrust, it moves the aircraft.


How much thrust does it take to push 1 pound?

1 pound of thrust is the force required to hold 1 pound of a material stationary in the air against the effect of gravity. This is only in ideal case(no effects of atmosphere) and excluding the weight of the engine which generates that thrust.


During a rocket launch whioch is greater thrust of the rocket engine or weight of the rocket?

thrust of the rocket engine