PPRuNe Forums

PPRuNe Forums (https://www.pprune.org/)
-   Military Aviation (https://www.pprune.org/military-aviation-57/)
-   -   Lost Navy SEALS Helo.....Wot really happened?? (https://www.pprune.org/military-aviation/450492-lost-navy-seals-helo-wot-really-happened.html)

Tashengurt 3rd May 2011 14:40

I tend to think that the way the tail's draped over a wall would indicate that it landed near vertically with some force. That's not to say that it crashed, of course.

On another note, was it definately some form of Blackhawk? It just doesn't look terribly Blackhawky to me. Although I'd be the first to admit I'm not used to seeing them embedded in the brickwork!

[email protected] 3rd May 2011 14:42

Would love to hear the explanation from those armchair experts of exactly how to stall a blackhawk:ugh:

Also basic groundschool used to cover the difference between elevation and height:{

forget 3rd May 2011 14:56

Why does this thread remind me of the jungle based Bell 47 that wouldn't start so the engineer called base on HF.

"Pete the pilot says it's because there's water in the carb. I say it's because there's a main rotor blade stuck in the river bank".

davejb 3rd May 2011 15:03

In an attempt at keeping all the conspiracy threads in lock step....

...Sharkey did it.

southerncanuck 3rd May 2011 15:38

what type of blackhawk is shown in the pictures from the mail. is it a blackhawk, are the pictures even real?

Osama bin Laden dead: Photo of Obama watching the Al Qaeda leader die on live TV | Mail Online

Tashengurt 3rd May 2011 15:48

http://i.dailymail.co.uk/i/pix/2011/...84_470x423.jpg


????

Lonewolf_50 3rd May 2011 15:49

For Tashengurt:

The tail is looks pretty S-70 (Blackhawk/Seahawk) as I see it. (Flew both). You are looking at the forward edge of the "vertical stab" and the two "horizontal stabs" but the TRGB looks to be an utter mess.

I refer to the picture in this post. Not sure what your picture is of.

http://www.pprune.org/military-aircr...elo-wot-really-

Perhaps the TRGB failed? Got hit by ground fire? Hard to say.

Tashengurt 3rd May 2011 15:58

I can't find any Blackhawk variant that has a tail rotor like that?

ElectricWhale 3rd May 2011 16:10

First reports said they "ran out if air".
Helicopters don't "stall" in the conventional sense.
Could have been something called "settling with power" where the free air flow into the top of the rotor disk is replaced with descending air from the rotor downwash. This descending air is re-ingested during a high rate vertical descent and causes loss of lift due to a change of the angle of attack of the relative air that the rotor blades "see".
This analysis is based upon a twenty year old memory of a tricky-to-understand aerodynamic concept. Please correct or polish as necessary.
The photos we are seeing here are of the aircraft AFTER the US team intentionally blew it up so any photo analysis by us "experts" will probably be wrong.

Regardless, outstanding job by an incredible team under extremely difficult circumstances.

EW

Hedge36 3rd May 2011 16:24

There's a Robinson joke in here somewhere... I can smell it... :oh:

BOAC 3rd May 2011 16:26


so any photo analysis by us "experts" will probably be wrong.
- come on now - this is PPrune!

ShyTorque 3rd May 2011 16:49

The helicopter probably isn't dead at all but has flown off to a cave.

;)

Bubblewindow 3rd May 2011 16:50

That's a weird looking tail rotor all right!!
Looks like the inner of a Fenestron?
Did they bring the Commanche back to life :confused:

BW

TheWestCoast 3rd May 2011 16:53

If the pictures on the Daily Mail website are legit, and that's an S-70 variant, it's a heavily modified S-70. Appears to be some kind of fairing at the tail, a 5 blade tail rotor, with a fairing over the tail rotor hub. The horizontal stabilators are canted backwards, and there's no rivets visible. I suspect the USG will be making every attempt to get all those pieces back before the Chinese show up.

VinRouge 3rd May 2011 17:24

Some form of hushkit?

What Traffic 3rd May 2011 17:31

EDIT: Sorry, I took too long to post, didn't mean to rehash some of the same stuff.

The more I look at the photos of the helicopter bits, the curiouser and curiouser the nature of the aircraft becomes. The H stabilator has a pronounced sweep. The tail rotor looks to be 5 bladed, equal spacing, with a large center disk as observed previously. The portion of the tail boom that appears to lack significant visible damage seems to have a pretty dramatically different profile. 160th in the past has played around with quiet tail rotors and various interesting changes to their aircraft, so I wouldn't be surprised if this was a variant of something that previously has not been seen. Then again, after an exhaustive battery of tests I have been certified an idiot by several medical authorities and I'm working off of a couple grainy pictures of broken parts, so who's to say what's really going on. For all I know they blew it in place and left some extra bits around to send various foreign intelligence services into a tizzy.

http://img.photobucket.com/albums/v4...5_1303597a.jpg

http://img.photobucket.com/albums/v4...-_1303385a.jpg

I would be most interested to see what someone with more knowledge than me (just about everybody) thinks.

Tailspin Turtle 3rd May 2011 17:51

Definitely Non Standard
 
The "pie plate" over the tail rotor hub, gear box cover shape, pointed aft end, horizontal stabilizer sweep (forward or has it just rotated around the pivot point?), and the silvery paint suggest stealth treatment. The fin appears to be shorter as well. It looks to me that he came in a bit short and hit the tail boom on the wall. With hover antitorque thrust coming in, the tail boom would have been under a lot of stress and broken off with too much encouragement. Note that the bit outside the wall is to the left of the forward part of the tail boom and rolled upside down, which is where the tail rotor thrust would take it.

Ewan Whosearmy 3rd May 2011 18:03

Not sure it's just a hush kit that you can see.

The paint and shape of the tail components also point to RCS reduction measures.

Makes you wonder what the rest of it looked like.

Ah! TailSpin beat me to it!

tuj 3rd May 2011 18:16

Does anyone know if the helo's were detected by Pakistani radar? It has been said they were detected, but not clear on how. I didn't think you could really make a helo stealth given those rotor blades on top. :confused:

dead_pan 3rd May 2011 18:22

Any pics of the cab anywhere, or was this blown to kingdom come?

The 'tail-fan' seems too insubstantial for a Blackhawk, to my untrained eye.


All times are GMT. The time now is 00:12.


Copyright © 2024 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.