Fastest helicopter in the world.

[P4man]

pretty kewl.
but brave pilot, no bailing out on a helicopter.
or does a dual robot have even better engine dead recovery

Black Shark is a helicopter and has an ejection seat. I just read its apparently the first, which surprised me. Its not hard in theory, you just need to blow the rotor blades before you eject, no different than the way they blow the canopy in regular jet. But since so few heli's have this, and arguably its more needed in a heli than a fixed wing plane, I suspect in reality something is hard about doing that, no idea what.

 

[The Boston Dangler]

Black Shark is a helicopter and has an ejection seat. I just read its apparently the first, which surprised me. Its not hard in theory, you just need to blow the rotor blades before you eject, no different than the way they blow the canopy in regular jet. But since so few heli's have this, and arguably its more needed in a heli than a fixed wing plane, I suspect in reality something is hard about doing that, no idea what.

the additional cost, weight, power and complexity of explosive detachments for rotors, the canopy removal system and ejection seat would be my guess.

 

[Nebor]

There is some additional risk with the V-22 because of the addition of a transition between fixed wing flight and rotor powered flight and the inability to autorotate the rotors during an engine failure while in rotor powered flight. However, for military use the ability to travel farther burning less fuel, travel significantly faster and higher, and still land vertically like a helicopter can save far more lives than these issues, which so far have proven to be minimal.

I just remember all the Marines dying in peacetime during the Osprey's initial introduction. Fortunately the Army doesn't use them.

 

[Bignate603]

I just remember all the Marines dying in peacetime during the Osprey's initial introduction. Fortunately the Army doesn't use them.

There were 4 crashes during testing (last one occurred 10 years ago) but only one since they've introduced them into service in 2007. That crash appears to be due to the environment they were flying in (limited visibility, crashed into a hill), rather than anything to do with the aircraft. It was a rocky development but it appears that the aircraft is now quite safe.

I wouldn't say its "fortunate" that the Army isn't using them, the capabilities are quite impressive, especially the range. The Army's heavy lift helicopter, the Chinook, has an effective combat range that's incredibly small compared to what the Ospery can do. Take a look for yourself.

Combat radius, Ospery compared to Chinook

The tilt rotor lets them get troops in and out of distant places more quickly than anything the Army can do right now, that ability can easily save more lives than the 30 that died over a decade ago during testing.

 

[Renob]

My wife works for Sikorsky they sure have some cool stuff...

 

[Nintendesert]

I just remember all the Marines dying in peacetime during the Osprey's initial introduction. Fortunately the Army doesn't use them.

That was a very long time ago. The aircraft has more than proven itself superior to anything else the US Military has operating in either Afghanistan or Iraq.

So continue to feel fortunate that the Army has taken more wartime deaths in their aircraft than the Marines have in the Osprey.

 

[Fritzo]

It's more of a gyroplane than a helicopter.

besides, this one does Mach 2:

 

[Nebor]

There were 4 crashes during testing (last one occurred 10 years ago) but only one since they've introduced them into service in 2007. That crash appears to be due to the environment they were flying in (limited visibility, crashed into a hill), rather than anything to do with the aircraft. It was a rocky development but it appears that the aircraft is now quite safe.

I wouldn't say its "fortunate" that the Army isn't using them, the capabilities are quite impressive, especially the range. The Army's heavy lift helicopter, the Chinook, has an effective combat range that's incredibly small compared to what the Ospery can do. Take a look for yourself.

Combat radius, Ospery compared to Chinook

The tilt rotor lets them get troops in and out of distant places more quickly than anything the Army can do right now, that ability can easily save more lives than the 30 that died over a decade ago during testing.

That's pretty impressive. Can it operate in helicopter mode in the high altitudes of Afghanistan? Because Blackhawks can't reach places that Chinooks can.

The Army will catch up when we have teleporters.

 

[Bignate603]

That was a very long time ago. The aircraft has more than proven itself superior to anything else the US Military has operating in either Afghanistan or Iraq.

So continue to feel fortunate that the Army has taken more wartime deaths in their aircraft than the Marines have in the Osprey.

If you add in injuries and deaths because Army rotorcraft weren't able to to reach people on the ground when needed due to their limited range or reduced speed you'll really start to see the advantage of a tilt rotor. Deaths that occur while in the aircraft are only part of the story.

Getting extra people or equipment/supplies to a location or getting the people that are there out when needed saves lives. Anything that improves your ability to do that can have a huge benefit.

 

[Bignate603]

That's pretty impressive. Can it operate in helicopter mode in the high altitudes of Afghanistan? Because Blackhawks can't reach places that Chinooks can.

The Army will catch up when we have teleporters.

The service ceiling of the Ospery is 7k feet higher than the Blackhawk but I don't know how heavily the aircraft is loaded for those numbers.

I'm currently working on a project that will hopefully fix that issue with the Blackhawk, it's in desperate need of more power to be able to perform as well as the Chinook. The Chinook's T55 engine is an absolute beast and the Blackhawk needs a new engine to be able to keep up. Go look up the AATE program to read about what the Army is doing to re-engine the Apache and Blackhawk to get more power.

 

[skyking]

Hover out of ground effect (HOGE) is listed as 5400 feet in this information page.
The service ceiling and single engine service ceiling numbers are from the forward flight operations only.
http://www.navair.navy.mil/v22/?fuseaction=aircraft.main

A helicopter can climb much higher than it can hover once it achieves forward flight.

Looking at the Blackhawk data, HOGE is closer to 11,000 feet at International Standard Atmosphere(ISA).


http://www.fas.org/programs/ssp/man/uswpns/air/rotary/sh60.html

and the service ceiling for the Blackhawk is 19,000 feet at ISA.

http://www.hyperflite.co.uk/isa-conditions.html

 

[0roo0roo]

I'm not sure if this is just poorly worded or if you're confused how helicopters work.

The turbines in a helicopter provide almost no thrust directly. Ideally, 100% of the power that the engine produces is transmitted to a shaft that goes to the helicopter's gearbox. A very small amount of thrust will happen as a side effect because typically the engine's exhaust is pointed towards the aft end of the helicopter. Compared to the amount of forward thrust the helicopter gets from adjusting its main blade the effects of the exhaust are extremely minimal. This is why this kind of engine for helicopters is called a "turboshaft" engine, the power is transmitted out through the shaft. The same style of engine powers the M1 Abrams tank.

Other kinds of turbines, like turbojet and turbofan engines are what people would refer to as jets because they dump as much power as possible into the air that they are shoving through (or mostly through a bypass duct in the case of the turbofan) the engine which then is shot out the back as a jet of air to provide the thrust. You usually wouldn't classify a turboshaft engine as a "jet" engine because it's not designed to create thrust by that jet of air coming out the back.

As a historical side note the engine in the M1 Abrams had actually been developed into a flight weight engine to power the Blackhawk and Apache but lost to GE's T700. It's suspected that they military chose GE mostly because of political reasons. The company (Lycoming) producing the M1's engine already had contracts for a huge percentage of the turboshaft engines being sold to the military at the time in many different vehicles.

worst typo ever
i was multitasking lol i meant rotor not robot, most helicopters have various heights where they can survive a free wheeling rotor blade landing, they build up energy in the blades while falling, then use it to slow down. whether this is better on two blade or worse, i dunno. i know on a v22 its pretty bad. forgot the exact term but there is a dead man zone from take off to a certain height where free wheeling rotor landing doesn't work, and for the v22, its a bigger range.

 

[bunnyfubbles]

Anyone else notice the pilot looked and sounded like he was being violently vibrated? Is that normal for a performance heli?

 

[Moonbeam]

What's the MPG?

 

[Bignate603]

worst typo ever
i was multitasking lol i meant rotor not robot, most helicopters have various heights where they can survive a free wheeling rotor blade landing, they build up energy in the blades while falling, then use it to slow down. whether this is better on two blade or worse, i dunno. i know on a v22 its pretty bad. forgot the exact term but there is a dead man zone from take off to a certain height where free wheeling rotor landing doesn't work, and for the v22, its a bigger range.

The way the V22 is designed it can't autorotate its helicopter blades in the event of an engine failure. Their best shot is to glide and try to do an emergency landing like a plane. However, if they're moving at speeds below what's needed to glide and are at low altitudes I would bet they wouldn't be able to recover, get air speed to glide, and then perform a safe landing before they hit the ground.

 

[JTsyo]

Seems the rear propeller needs to tilt since when the copter tilts forward the rear one is pushing down a bit. Probably just a small percent of the main rotters' trust.

 

[Bignate603]

Seems the rear propeller needs to tilt since when the copter tilts forward the rear one is pushing down a bit. Probably just a small percent of the main rotters' trust.

I can guarantee that the guys at sikorsky were bright enough to orient that rear propeller to give them the position for thrust when the helicopter was cruising at high speed. They're bright enough to not make it push the helicopter down, fighting the lift of the main rotor and wasting power.

Propellers of the size that they're using on that X2 can provide thousands of pounds of thrust which would be a considerable amount of the power that will move the helicopter forward.

 

[Ichinisan]

I haven't read the thread yet, but this better be about Airwolf.

 

[Ichinisan]

Slow motion on the rotors is awsome.

http://devour.com/video/worlds-fastest-helicopter/

edit: direct link for those who hate sites that simply embed youtube videos:
http://www.youtube.com/watch?v=gK7ktLXhq88
-DrPizza

Not slow motion. That's just the rotation synching with the video camera's refresh / capture frame rate.

 

[Ichinisan]

It's more of a gyroplane than a helicopter.

besides, this one does Mach 2:

"That's impossible! NO helicopter can break the sound barrier!"

"Airwolf can."

 

[CZroe]

http://www.youtube.com/watch?v=_JmkH8MbIvs

http://www.youtube.com/watch?v=yW9SDuJHk94&NR=1

 

[Fritzo]

http://www.youtube.com/watch?v=_JmkH8MbIvs

http://www.youtube.com/watch?v=yW9SDuJHk94&NR=1

You know, after 25 years, it's still an awesome looking helicopter. The soundtrack to that show kicked ass too

 

[CZroe]

You know, after 25 years, it's still an awesome looking helicopter. The soundtrack to that show kicked ass too

I loved the show when I was a kid even though I didn't understand it. I just thought that the helicopter and the music were awesome, just like I thought the car and the music were awesome in "Knight Rider."

I had a Cox free-flight gas-powered Airwolf helicopter. It cost me $50 around 1991. I eventually lost it in the late '90s because that thing could fly HIGH (2-ft rotor span becomes a tiny speck in the sky)! My brother also made a pretty cool Airwolf model out of Legos but the most important piece, the nose, was white, so we painted it and ruined our super-expensive Lego space monorail set to make a bad-ass Airwolf model.

 

[Rubycon]

Airwolf was worse than Knight Rider.

It was probably sparked from the movie Blue Thunder.

I'm biased though. I abhor helicopters.

 

[Nintendesert]

Airwolf was worse than Knight Rider.

It was probably sparked from the movie Blue Thunder.

I'm biased though. I abhor helicopters.

Why do you hate Leonardo Da Vinci?