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Old 03-11-2012, 10:00 PM   #2731
ParrotheadJeff
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Untitled from Nep Lex on Vimeo.


The friend whose passing I noted earlier made this video only last month. The imagery is great, but I really like the music, too. The second song is eerily fitting these days.

Thanks for a final great video, Lex
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Old 03-11-2012, 10:33 PM   #2732
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Originally Posted by EvilGenius View Post
I've often wondered why they left the engines out on the wing tips if they're going to be interconnected.

Would it not be a little more compact (or safe for the ground crew) if they kept the engines inboard, maybe on top of the fuselage and just ran a main gear with shafts out to the wingtips?
Survivability. The osprey was designed for combat. At least that is the theory. The distance between the engines makes it less likely that they would both take battle damage, and very unlikely that one engine catastrophically failing would take the other engine out. No drive shafts through the wings means there are no long drive shafts to get shot up and fail. At least not as the primary means of powering the rotors. The concept of a helicopter/plane thingy that doesn't have the wing surface to glide, but doesn't have favorable or as far as I know even survivable autorotative characteristics still scares me though.
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Old 03-12-2012, 12:43 AM   #2733
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Originally Posted by AHdrvr View Post
Survivability. The osprey was designed for combat. At least that is the theory. The distance between the engines makes it less likely that they would both take battle damage, and very unlikely that one engine catastrophically failing would take the other engine out. No drive shafts through the wings means there are no long drive shafts to get shot up and fail. At least not as the primary means of powering the rotors. The concept of a helicopter/plane thingy that doesn't have the wing surface to glide, but doesn't have favorable or as far as I know even survivable autorotative characteristics still scares me though.
Are you an AH64 driver?


Remember that the Osprey still has drive shafts in the wings, as the rotors are linked mechanically in case of engine failure.
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Old 03-12-2012, 07:34 AM   #2734
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Quote:
Originally Posted by AHdrvr View Post
Survivability. The osprey was designed for combat. At least that is the theory. The distance between the engines makes it less likely that they would both take battle damage, and very unlikely that one engine catastrophically failing would take the other engine out. No drive shafts through the wings means there are no long drive shafts to get shot up and fail. At least not as the primary means of powering the rotors. The concept of a helicopter/plane thingy that doesn't have the wing surface to glide, but doesn't have favorable or as far as I know even survivable autorotative characteristics still scares me though.

That's true for the osprey, but I was referring to the civilian version that AW is working on.
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Old 03-12-2012, 08:04 AM   #2735
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Quote:
Originally Posted by ParrotheadJeff View Post

Untitled from Nep Lex on Vimeo.


The friend whose passing I noted earlier made this video only last month. The imagery is great, but I really like the music, too. The second song is eerily fitting these days.

Thanks for a final great video, Lex
Great stuff. What's the name of the second song (who sings it)?

Condolences on the loss of your friend...
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Old 03-12-2012, 08:30 AM   #2736
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Thanks, Hardware.

One of my friends on Facebook who also knew Lex says that the second song is "Timshel" by Mumford and Sons.
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Old 03-12-2012, 10:39 AM   #2737
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Originally Posted by Klay View Post
Are you an AH64 driver?


Remember that the Osprey still has drive shafts in the wings, as the rotors are linked mechanically in case of engine failure.

Yes I am. I should have prefaced my post by saying I am just making observations of the Osprey. I am not trained on this aricraft. While it is my understanding that there is a driveshaft through the wings, the concept is redundancy. It would take both a driveshaft and an engine failure to lose one effective rotor system.
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Old 03-12-2012, 03:58 PM   #2738
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Originally Posted by AHdrvr View Post
Yes I am. I should have prefaced my post by saying I am just making observations of the Osprey. I am not trained on this aricraft. While it is my understanding that there is a driveshaft through the wings, the concept is redundancy. It would take both a driveshaft and an engine failure to lose one effective rotor system.
That's really interesting, I had always assumed it was to get enough clearance for those huge freaking rotors (props? :)). Never occurred to me it was for survivability. Learn something new every day
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Old 03-13-2012, 03:48 AM   #2739
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Originally Posted by 06ltd View Post
That's really interesting, I had always assumed it was to get enough clearance for those huge freaking rotors (props? :)). Never occurred to me it was for survivability. Learn something new every day
Having the engines out on the wing tips also simplifies the main power train....that drive shaft through the wings (and the gear box at each end) would get way too heavy to be practical if it was designed with the durability necessary for continuous use, as it would be in the case of a central power system.
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Old 03-13-2012, 12:46 PM   #2740
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I forgot to put up some pics from my day on base at NAF El Centro for a Blue Angels practice a couple weeks ago.











After that, we hung out at the end of runway 26 for a while.



S.C.
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Old 03-13-2012, 12:51 PM   #2741
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Gorgeous pics!
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Old 03-13-2012, 01:20 PM   #2742
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I miss going to El Centro! Sure, it was a long drive from San Diego when compared to Miramar, but it was always a good, more "down home" airshow that reminded me of what Miramar had been like back in the 1980's.

Thanks for posting the great pics
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Old 03-13-2012, 05:39 PM   #2743
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Originally Posted by I_FLY_LOW View Post
Gorgeous pics!
Thanks man.

Jeff, one of the best things is hanging outside the fence at the end of 26 for the Angels' practice. The first thing you encounter is the four primary Hornets blasting overhead, then #6 comes over super low and extremely fast and rotates in a big way right at the fence. It literally blew the hat off of one of my friends, and almost knocked he and one other guy off their ladders. It warmed us up real nice, and even on base as close as we were later on that day, you will not get that close to a fast moving jet as you do when hanging out at the fence.

#6 came in so fast that I didn't have time to prepare for a good shot.



And that is shot at 70mm. No long reach there. He was that close.

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Old 03-13-2012, 06:44 PM   #2744
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Fantastic pictures.





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Old 03-13-2012, 10:14 PM   #2745
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El Sweato is without a doubt the best place to watch the Blues.

Even if they're a bunch of high maintenance prima donnas.

When I was instructing in A-4s we'd do dets out there. In the winter when the Blues are there, everything has to come to a stop on the entire Effing field when the pretty boys call for "Blue Angel Taxi" or a "Blue Angel Recovery." No aircraft can move anywhere for any reason. If you get caught in a Blue Angel moment and happen to be taxiing between the runway and and your flight line you have stop where ever you are and just wait. Sitting and sweating for 20 minutes while sucking down the exhaust of the aircraft turning in front of you gets old pretty fast.

For a little entertainment we started calling Ground for "Skyhawk taxi" and telling Tower we were inbound for a "Skyhawk Recovery."

Later on that day one of the Smurfs sashayed over in his blue form fit flight suit and indignantly informed us (in our Ready Room) that we weren't allowed to do that.

Not a tactically sound move on his part.

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