FutureTank
Banned Member
Altitude : 12 442 m.
u still need high-altitude helicopters for transport.
which modern transport helicopter has the highest service-ceiling ???
plz update if possible.
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Date of flight: 21/06/1972
Pilot: Jean BOULET (France)
Course/place: Aérodrome d'Istres (France)
Rotorcraft:
SA 315 Lama (1 Turboméca Artouste III B, 735 kW)
Source: Fédération Aéronautique Internationale
However, although this helo can accommodate 4 passengers, it is unlikely that it can lift them to much higher then 4,000ft, if that.
The UH-1Ds in Vietnam had to cut the number of passengers in half to fly over 4,000ft mountains.
The ubiquitous Mi-8 can only manage 4,500 m (14,760 ft) service ceiling, but not with its standard load, which is 24 passengers. Of course this is more then double the number the UH-1H could lift, but if it has to lift to ceiling, it is unlikely to to lift more then 4-6 combat troops, which is what Soviet SpetzNaz did in Afghanistan.
The service ceiling attempts to capture the maximum usable altitude of an aircraft. Specifically, it is the density altitude at which flying in a clean configuration, at the best rate of climb airspeed for that altitude and with all engines operating and producing maximum continuous power, will produce a 100 feet per minute climb. Margin to stall at service ceiling is 1.5g. (Wiki)
Absolute ceiling for a Mi-8 is far greater of course at 6000m.