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dragorv
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 Posted: Feb 27, 2010 - 01:50 AM
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Enthusiast
Joined: Nov 20, 2009 - 03:47 AM
Posts: 98
Location: East Coast, USA
Status: Offline
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Sponsor
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 Posted: May 25, 2013 - 5:27 AM
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F-16.net Sponsor
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That_Engine_Guy
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Posted: Feb 27, 2010 - 02:51 AM
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Elite 2K
Joined: Dec 14, 2005 - 05:03 AM
Posts: 2198
Location: Under the engine somewhere.
Status: Offline
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skicountry
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Posted: Feb 27, 2010 - 05:54 AM
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Active Member
Joined: Jan 21, 2009 - 05:12 PM
Posts: 110
Status: Offline
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| Yeah, but before Eurocopter and Comanche, we had Blue Thunder and "whisper mode." |
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14.72 KB |
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5855 Time(s) |
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singularity
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Posted: Feb 27, 2010 - 02:55 PM
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Enthusiast
Joined: Dec 18, 2008 - 01:06 PM
Posts: 94
Status: Offline
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| How quiet were the comanche rotors? That 3-4 decibel decrease of the eurocopters seems very significant! I live nearby a large hospital(Strong hospital. U of R) And a nearby army reserve base. The Chinooks fly over and shake my whole apartment, but when the newer mercy flight chopper flies over, its incredibly quiet! I cant imagine these rotors on a chinook... |
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bjr1028
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Posted: Feb 27, 2010 - 05:08 PM
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Forum Veteran
Joined: Jul 07, 2009 - 04:34 AM
Posts: 503
Location: Dubuque, IA
Status: Offline
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| On licenses alone this kind of technology could make EADS a lot of money. |
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discofishing
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Posted: Mar 14, 2010 - 02:46 AM
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Elite 1K
Joined: Nov 07, 2008 - 10:15 PM
Posts: 1280
Status: Offline
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| This looks like a game changer for helicopters. That is, if the Blue Edge is all it's cracked up to be. |
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That_Engine_Guy
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Posted: Mar 14, 2010 - 03:28 AM
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Elite 2K
Joined: Dec 14, 2005 - 05:03 AM
Posts: 2198
Location: Under the engine somewhere.
Status: Offline
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singularity wrote:
How quiet were the comanche rotors?
Quote:
The Comanche only radiates one-half the rotor noise of current helicopters. Noise is reduced by use of a five-bladed rotor, pioneered by the successful Boeing (McDonnell Douglas) MD-500 Defender series of light utility helicopters. The fantail eliminates interaction between main rotor and tail rotor wakes. The advanced rotor design permits operation at low speed, allowing the Comanche to sneak 40% closer to a target than an Apache, without being detected by an acoustical system.
The swept tips of the Blackhawk series chopper also help to reduce noise.
TEG |
_________________
[Airplanes are] near perfect, all they lack is the ability to forgive.
— Richard Collins
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discofishing
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Posted: Apr 12, 2010 - 05:27 AM
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Elite 1K
Joined: Nov 07, 2008 - 10:15 PM
Posts: 1280
Status: Offline
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| Anyone know if the Blue Edge blades have the same ballistic tolerance as normal blades? |
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