Helicopters

He made one because he wanted to help people with there travels. He also wanted to make a helicopter because he thought it would be fun.Another reason is because he probably wanted to make money and when you make something big you get money from it.

*don't take this answer I guessed on it.

Yes.

An entire 11-person, fully-equipped infantry squad can be lifted in a single Black Hawk, transported faster than in predecessor systems, in most weather conditions.

The Black Hawk can reposition a 105 mm Howitzer, its crew of six, and lift up to 30 rounds of ammunition in a single lift.

UH-60A MAX. GROSS WEIGHT: 20,250 lbs CRUISING SPEED: 139 kt ENDURANCE: 2.3 hrs MAX. RANGE: 320 nm EXTERNAL LOAD: 8000 lbs INTERNAL LOAD: 2640 lbs (or 11 combat-equipped troops) CREW: 4 (2 pilots; 2 crew chiefs) ARMAMENT: Two 7.62mm machine guns UH-60L MAX GW: 22,000 lbs, 23,500 (external cargo) CRUISING SPEED: 150kt

Usually only one, but in some helicopters, two people are recommended.

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Well, one person can pretty much do the job, but in the USA and Canada it often requires both a pilot and a co-pilot. Helicopters, unlike airplanes, can never be left alone (they don't have autopilot systems), making it important to have a backup pilot if the pilot in command is no longer able to fly.

it can cost up to 160,000,000 depending on the model and the kind of helicopter.

That depends largely on the type of helicopter. This may be an interesting read. http://www.greatoutdoors.com/published/helicopter-on-everest-makes-history

The Chinese had thought of a concept of the idea of a helicopter

Helicopters can land almost anywhere.

To have a transportation that travel by air for the Army or VIP people.

It is a very high octane fuel. Hope this helps!

An engineer, Igor Sikorski, invented the helicopter.

The top speed of a UH-60L Blackhawk under optimum conditions in level flight is about 159 knots (183 mph). Since there is no such thing as "optimum conditions" in actual operations, the realistic top speed would be in the range of 140 kts. (161 mph), and they cruise at about 120 kts. (138 mph).

Certain SpecOps applications may configure at different numbers.

Leonardo di Vinci drew a device that resembled a helicopter and the rotor looked like a large screw. Later in the 1900's, some people tried built helicopters with a large rotor that tapered to a point like a screw. This was one inspiration. They had the idea that the screw-rotor could screw up into the air.

This largley relies on the aerodynamic design , engine(s) , and surroinding enviorment of the aircraft. I am going to give you some service ceilings of common helicopters. Civilian # Bell 206 - 13,500ft (4,115m) # EC 130 - 15,655ft (4,770m) # MD 600N - 18,700ft (5,700m) # SW-4 - 17,056ft (5,200m) # Mi-34 - 14,760ft (4,500m) Military (Cargo / Utility) # UH-60 - 19,000ft (5,790m) # CH-53 - 16,750ft (5,106m) # Mi-26 - 15,100ft (4,6000m) # Mi-17 - 19,690ft (6,000m) # EH 101 - 15,000ft (4,575m)

7.6 tonnes

To asker....

Which country/branch of the military are you in?

Can you give me any further details of where you use this stuff?

Tail rotor blade pivots?

Drive shaft bearings?

etc etc?

Is it thick red stuff that smells a little weird, a black graphite based grease, or just regular poo-brown grease?

Is it quite thin, or thick and gloopy?

i think it was japan at the end of WWII

A typical aircraft propellor cuts through the air much like a screw and provides thrust to the aircraft. Many of the modern airplanes have propellors which are variable pitch and they change pitch so that it can increase the blade angle to grab more air or decrease the angle to grab less. When the pitch is changed by the pilot, both (or all 3 or 4) blades change pitch at the same time and the same angle. === === The main rotor blades of a helicopter provides lift and thrust for forward motion. To do this, the rotor controls input a pitch control to the Blade that is moving to the Aft and decreases pitch to the blade moving forward or vice versa. Therefore, unlike the typical airplane propellor, the helicopter blades do not have the same pitch ange. One result of this is that the loads on the blade attachments (or grips) and the Mast have higher bending loads and torque loads and the loads are not symmetrical as it would be with regular propellor blades.

# Attack # Cargo # AEW # Maritime Strike # Recon. /Observation # Firefighting # MEDEVAC / SAR / Special Forces # Training # Civilian

plane

M-16,50cal.,I think a 170cal. ak-47 nd AR-15.hahaha.I spend to much time around military men and women...haha

M-16,50cal.,I think a 170cal. ak-47 nd AR-15.hahaha.I spend to much time around military men and women...haha

First they slow down by reducing the angle of the rotor vs the fuselage. Once they're stationary WRT the ground they reduce power to the engine, which reduces lift, and they sink to the ground.

If well maintained and undamaged it can last for quite a few years.

Limiting factors will be...

Component life: All major components on any aircraft have a life limitation based on how many hours used, and some have a calender time for the life as well.

Condition: Rotors are prone to erosion of the surfaces in use, this is increased in dusty or sandy environments. An easy technique to prevent this is using special tapes or spray paints to be eroded first, leaving the blade intact.

Material of construction: The first blades were wooden, later Aluminium, then more recently composite blades have become the norm. Each material has its own strengths and weaknesses, which relates to the lifespan.

Damages incurred: While lighter and technically superior composite blades are the least tolerant of damage of any kind, and what can look minor impact damage can seriously weaken the structure of a composite blade.

The Marine corps. It is called Marine one like the airplane by the air force the president uses is called air force one.