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Sikorsky S-76: Ask Nick Lappos

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Sikorsky S-76: Ask Nick Lappos

Old 24th Aug 2017, 13:07
  #1261 (permalink)  
 
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Yep 212man. That's it....playing an expensive game of battleship in the ZhuHai hangar.
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Old 24th Aug 2017, 20:07
  #1262 (permalink)  
 
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Originally Posted by gulliBell
Curious whether a S76 which is immersed in salt water to about windscreen level would be a write-off. We have two 76's and a 92 floating in the hangar.
For what its worth, at least one of the helicopters caught up in the 2011 Japanese tsunami was subsequently refurbished and put back into service: an AS332 L1 purchased by Rainier Heli.

I/C
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Old 8th Sep 2017, 01:12
  #1263 (permalink)  
 
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Greeting Guys...I'm new (here & to aviation) and here to learn

I'm currently engaged in a course of study and need some information plz!
What was the price of an S- 76 A in 1981 and in 1984?
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Old 14th Sep 2017, 15:17
  #1264 (permalink)  
 
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I started flying the S76A in 1981 with Bristol Aberdeen, and the cost then was around $13million.

tut
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Old 14th Sep 2017, 21:58
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Tut

1st Bristow S-76s in 1980 - 81 were purchased new for 775,000 pounds each.
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Old 15th Sep 2017, 04:49
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Originally Posted by terminus mos
Tut

1st Bristow S-76s in 1980 - 81 were purchased new for 775,000 pounds each.
About 1.8 million US if the currency converter I used is correct for 6/6/80
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Old 15th Sep 2017, 08:51
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I paid £750,000 for a North Sea equipped S.76A in 1981 (Jan).

At the time Art Tobey reckoned that for every helicopter Sikorsky sold to my Company, they were losing $1,000,000. My Company bought 5 new ones.

Sq.
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Old 15th Sep 2017, 09:47
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Originally Posted by n1tut
I started flying the S76A in 1981 with Bristol Aberdeen, and the cost then was around $13million.

tut
I doubt that an S76 has ever cost $13 million although, curiously, Wikipedia says this:

Unit cost: US$13 million (2014)[citation needed]
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Old 15th Sep 2017, 12:00
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$13m is about right in 2014. C++ was $11m with discount in 2009-10. That's one reason why the sales dried up. S76 started to look very expensive against 139, Sikorsky should have been selling them at $8m
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Old 15th Sep 2017, 14:46
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Originally Posted by terminus mos
$13m is about right in 2014. C++ was $11m with discount in 2009-10. That's one reason why the sales dried up. S76 started to look very expensive against 139, Sikorsky should have been selling them at $8m
I thought that's what they were!
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Old 12th Oct 2017, 23:15
  #1271 (permalink)  
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Nr-v-DECU question... Hope you guys can help here... A question came up the other day regarding what response the DECU has in a C+ aircraft when both NR signals are lost ?? I've been though RFM, TM all these posts etc and cannot find any answer...

As the DECU uses N2 (and other inputs) to maintain NR at 107, with no NR signal does this result in DECU MAJOR fault or High Side on that engine as the DECU see 0%NR and opens fuel to full flow.. Any and all pointers welcome...

Cheers
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Old 13th Oct 2017, 05:33
  #1272 (permalink)  
 
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Not familiar with the arrangement but the DECU would only see N2 and only you would see NR. Don't know of many engines that bother with an NR input although some later machines with FADEC do use NR for ground idle.
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Old 13th Oct 2017, 08:12
  #1273 (permalink)  
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Hello VTA,


The DECU has no input from an NR sensor but from N2 sensors only ( 2 sensors per engine -N2b and N2c) . Since the rotor is mechanically linked to the power turbines (N2) the NR is regulated via the N2 only (power turbines)
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Old 13th Oct 2017, 10:05
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cpt is correct. The DECU doesn't care about NR.
Attached Images
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Old 13th Oct 2017, 12:48
  #1275 (permalink)  
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Hi Gents... I also found the answer in the FSI Training Manual... As always, thanks for the great response... Cheers
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Old 15th Dec 2017, 17:35
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Hi Nick. I was wondering if you might be able to answer this query in relation to the H-76 Eagle.

Can you recall if the armed H-76 Eagle, with the standard tail rotor fitted, was ever demonstrated to the 160th SOAR, US Army, and if so, the approximate date?

Thanks.

500 Fan.
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Old 15th Dec 2017, 20:15
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Can you recall if the armed H-76 Eagle, with the standard tail rotor fitted, was ever demonstrated to the 160th SOAR, US Army, and if so, the approximate date?
Highly likely I imagine. My S92 conversion course was 50% Flight Concepts Division pilots. At the end of the simulator phase they were given a prototype to take away for a month to "play with".
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Old 15th Dec 2017, 21:52
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Thanks, 212. Didn't think they'd admit to coming from that unit but maybe even they are moving out of the shadows a little these days.

Did any of them mention if they are still flying MD530Fs or other 500s?

500 Fan.
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Old 16th Dec 2017, 00:44
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Originally Posted by 500 Fan
Thanks, 212. Didn't think they'd admit to coming from that unit but maybe even they are moving out of the shadows a little these days.

Did any of them mention if they are still flying MD530Fs or other 500s?

500 Fan.
They had business cards, so no secrecy other than having to know what FCD actually was/is. It was 12 years ago, so I had no interest in asking about those types.
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Old 16th Dec 2017, 14:26
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Armed S-76

212 Man, as near as I can recollect, Sikorsky delivered UH-76As to the either the US Government or one of the Government security contractors in the mid-1980s. These aircraft incorporated armament systems and beefed up tail cones. The tail cone beef up was required for launching TOW missiles. Later in the mid 1990 an S-76B was similarly configured but never sold. The aircraft was later reconfigured with the Sikorsky Fantail as part the Comanche program.
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