the FN Herstal Heavy Machine Gun Pod (HMP).
Weapons option discussed in detail here;
http://www.airrecognition.com/index...craft-united-states-american-us-usn-usmc.html
And yet my good Penguin, that happened :
Under
14 CFR Part 29.1527, the Maximum operating altitude for a transport-category helicopter is:
§ 29.1527 Maximum operating altitude. The maximum altitude up to which operation
is allowed, as limited by flight, structural, powerplant, functional, or equipment characteristics, must be established.
In the Everest vid, the heli flies in ground effect when landing.
The highest altitude a helicopter has ever flown, which was 40,820 feet on June 21, 1972, when Jean Boulet of France flew a single-turboshaft Aerospatiale SA 315B Lama, which had been stripped of all unnecessary equipment to reduce weight. He could have possibly gone higher, but the Lama's engine flamed out, which necessitated an autorotation to the ground and an unintentional additional record: the longest successful autorotation.
The highest altitude at which a helicopter has ever landed: 29,305 feet on top of Mount Everest, the world's highest peak. This was accomplished by Eurocopter test pilot Didier Delsalle in an unmodified, single turboshaft-engine AS350 B3 helicopter on May 14, 2005
I found this explanation informative:
A simple question with a complicated answer.
First let's talk altitude. There isn't going to be a set altitude that a helicopter can get to. There are numerous charts in helicopter performance planning manuals that allow pilots to figure out a maximum altitude. This altitude will be a function of aircraft gross weight, Mean Sea Level elevation and temperature. Engines and Rotor systems are less efficient at higher temperatures/altitude and they have work harder when the aircraft weighs more. Temperature and Altitude factored together gives you density altitude. Most aircraft's service ceilings are based on density altitude.
Second there are several maximum altitudes a helicopter pilot is going to be concerned with. The maximum altitude for level flight, the maximum for an in ground effect (IGE) hover and the maximum for an out of ground effect (OGE) hover. An IGE hover is one close to the ground usually 3-10 feet demanding on aircraft type and OGE hover requires more power and is 1.5 times the aircraft's rotor diameter or greater above the ground. As you move between the two more power is required. The power required for each of these changes for density altitude and weight. For level flight airspeed is also going to be a factor, all aircraft of a 'bucket' airspeed at the bottom of the drag curve where they are most efficient. A prudent pilot is going to figure these numbers out before they get into that phase of flight so they don't get into trouble.
Hope this helps you figure it out. For level flight most helicopters can fly up over 10000 feet MSL. Without a pressurized cabin the FAA requires oxygen for flights above 12000 MSL longer than 30 minutes and all flights above 14000 MSL. Helicopter operators at theses altitudes will carry pressurized oxygen to give their crew members so they are in compliance. There isn't much incentive to be able to cruise much higher than 12000 feet because of the cost involved. For hover the altitude it really depends on gross weight and temperature but 8000 is a good ballpark number.
https://www.quora.com/Whats-the-highest-altitude-an-average-helicopter-can-fly (see under Dave Blunier)
as that is all the outcome will be ... photos
