Seriously, in the Arctic, we could hear the Hueys
a good five minutes before they emerged from the horizon!
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| Science & Technology |
| Video: A Silent Rotor Blade Paves the Way for Super-Stealth Choppers |
| 2010-03-01 |
| Posted by:Uncle Phester |
| #10 How do they know when to stop shooting? Is it when the secondaries die down? |
| Posted by: gorb 2010-03-01 21:50 |
| #9 What is being used right now have quiet rotor too... Look at that shit...hooo hah!!! What a mix...lasers, choppers and chain guns = DEAD 'SLIMES!!! |
| Posted by: Hotspur666 2010-03-01 21:37 |
| #8 Eurocopter manages to pair down the blade-vortex interaction so thoroughly that the sound only reaches the whisper volume of 3 or 4 decibels. 3-4 dB is a very low sound pressure (or intensity). Zero decibels is the threshold of hearing. If 3-4 dB is more than a few inches from the human ear, you wouldn't hear it since sound dissipates with distance. If 3-4 dB is at the human ear, it would have the sound pressure level of a whisper. This helicopter would have considerable advantage (in stealth) over our present helicopters. The helicopter would be on you before you knew it. |
| Posted by: JohnQC 2010-03-01 18:54 |
| #7 What do they mean, my black helicopters are noisy??? Seriously, in the Arctic, we could hear the Hueys a good five minutes before they emerged from the horizon! |
| Posted by: Hotspur666 2010-03-01 16:21 |
| #6 I still wonder why there has been little or no interest in fanwing technology? Mainly because the Fans take more power, a LOT more power. |
| Posted by: Redneck Jim 2010-03-01 11:09 |
| #5 I still wonder why there has been little or no interest in fanwing technology? It uses a centrifugal fan, like in an evaporative cooler, is mechanically simple, and far more efficient that propeller fans. Likewise it is a lot quieter and has better lift. |
| Posted by: Anonymoose 2010-03-01 09:13 |
| #4 Looks just like the wing of a frigate bird. |
| Posted by: Grunter 2010-03-01 07:50 |
| #3 They must've wanted to call it Blue Thunder not Blue Edge. |
| Posted by: Bright Pebbles 2010-03-01 05:54 |
| #2 Perhaps it should more correctly UNMANNED/REMOTELY PILOTED SUPER-STEALTH HELICOPTERS??? |
| Posted by: JosephMendiola 2010-03-01 01:23 |
| #1 That WILL make a difference. |
| Posted by: tipover 2010-03-01 01:06 |