How high can rotary aircraft go before losing lift due to air density?
Does a fixed-wing aircraft behave in the same way in a straight climb?
Answers:
Thehighest I've ever been in a rotorcraft was 10,000 MSL (in a Bell JetRanger) and it was starting to get pretty 'mushy'. I've been told that there are some rotorcraft that can get up to 15,000 MSL, but I honestly don't know how true that is.
Yes, fixed-wing behave in the same was (as far as prop efficiency is concerned) but what usually limits the 'service ceiling' on fixed wing aircraft is the wing itself.
IIRC the world record for prop-driven fixed wing aircraft is still held by a bunch of Germans who made it to 60,000 or so back in the 30's.
Doug
dunno im dumb
lift is provided by the wings and not the rotor. The rotor provides air speed.
Have you looked at the manual?
Average ceiling height of a helicopter is 10,000 feet.
A fixed wing aircraft can do a straight climb if it has enough power.
Atmosphere has 10 000 meters that is the highest place for a rotary aircraft.
you mean helicopters? they usually have ceilings around 20k feet i think. jets or fixed wing aircraft obviously can go higher due to the turbine engines they use. their celiings are limited to around 40-50k feet. very few can go higher than that with the exception of the U2 and blackbird
A prop aircraft in a straight climb will have a ceiling based on the loss of thrust (lift of the prop blades) do to two things. One is the decreasing air density that also places a service ceiling on the wings and prop. The second, is that as the density decreases, the speed of sound decreases and the prop tips must remain below the local Mach 1 to not build up a shock wave and loss of performance (lift, thrust).
Any aircraft has to have lift and speed to get airborne. In an airplane, as you move forward and gain speed, you get lift because of air rushing over the wing creates a negative presure under the wing. In a helicopter, the main rotor acts like a wing, and provides some lift, but in hot dense air, there is not always enough lift.
Fixed wing aircraft usually have a service ceiling of up to 40,000 feet for like a 777 or 747. Helicopters I am familiar with have a service ceiling of about 15,000 feet for the S92, cruise speed of 151 knots.
There are some pretty good answers here already, but I would add that helicopters have both a service ceiling (maximum altitude in forward flight) and a hovering ceiling, so how high a helicopter can fly depends on how it is being flown.
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Answers:
Thehighest I've ever been in a rotorcraft was 10,000 MSL (in a Bell JetRanger) and it was starting to get pretty 'mushy'. I've been told that there are some rotorcraft that can get up to 15,000 MSL, but I honestly don't know how true that is.
Yes, fixed-wing behave in the same was (as far as prop efficiency is concerned) but what usually limits the 'service ceiling' on fixed wing aircraft is the wing itself.
IIRC the world record for prop-driven fixed wing aircraft is still held by a bunch of Germans who made it to 60,000 or so back in the 30's.
Doug
dunno im dumb
lift is provided by the wings and not the rotor. The rotor provides air speed.
Have you looked at the manual?
Average ceiling height of a helicopter is 10,000 feet.
A fixed wing aircraft can do a straight climb if it has enough power.
Atmosphere has 10 000 meters that is the highest place for a rotary aircraft.
you mean helicopters? they usually have ceilings around 20k feet i think. jets or fixed wing aircraft obviously can go higher due to the turbine engines they use. their celiings are limited to around 40-50k feet. very few can go higher than that with the exception of the U2 and blackbird
A prop aircraft in a straight climb will have a ceiling based on the loss of thrust (lift of the prop blades) do to two things. One is the decreasing air density that also places a service ceiling on the wings and prop. The second, is that as the density decreases, the speed of sound decreases and the prop tips must remain below the local Mach 1 to not build up a shock wave and loss of performance (lift, thrust).
Any aircraft has to have lift and speed to get airborne. In an airplane, as you move forward and gain speed, you get lift because of air rushing over the wing creates a negative presure under the wing. In a helicopter, the main rotor acts like a wing, and provides some lift, but in hot dense air, there is not always enough lift.
Fixed wing aircraft usually have a service ceiling of up to 40,000 feet for like a 777 or 747. Helicopters I am familiar with have a service ceiling of about 15,000 feet for the S92, cruise speed of 151 knots.
There are some pretty good answers here already, but I would add that helicopters have both a service ceiling (maximum altitude in forward flight) and a hovering ceiling, so how high a helicopter can fly depends on how it is being flown.
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