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Search: Posts Made By: noneofyourbusiness
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Forum: Rotorheads
21st May 2023, 15:31
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

"Spyclip" at secret projects: 8 May 2023...

"Spyclip" at secret projects:

8 May 2023 (https://www.secretprojects.co.uk/threads/jmr-joint-multi-role-fvl-future-vertical-lift-programs.13812/post-596045)

History suggests that RaiderX will...
Forum: Rotorheads
20th May 2023, 16:13
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

A man named "spyclip" posted this on The Drive....

A man named "spyclip" posted this on The Drive. Seems very knowledgeable, probably a former engineering insider at Sikorsky:

Spyclip
1 July, 2022

No vibration issues? Are you serious? The...
Forum: Rotorheads
19th May 2023, 15:17
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

They would not necessarily need a clutch. They...

They would not necessarily need a clutch. They could drive, with a variable speed motor, the prop pretty much any speed they want down to very low rpm. The lower the rpm they want, the heavier the...
Forum: Rotorheads
19th May 2023, 15:01
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

Certainly there are good reasons to have a...

Certainly there are good reasons to have a clutched prop. Sikorsky has sold this as a major advantage. Either 1) they did not execute the design well or 2) Your concern, that they may have had to...
Forum: Rotorheads
19th May 2023, 12:24
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

Exactly.

Exactly.
Forum: Rotorheads
19th May 2023, 12:23
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

And the clutch design was fantastic, well before...

And the clutch design was fantastic, well before my time. Comparing it to some other "modern" clutches. Does JSF ring a bell?

I think is more likely to be an oversight in design to let the blades...
Forum: Rotorheads
18th May 2023, 16:55
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

At a gas turbine company, I sometimes worked on...

At a gas turbine company, I sometimes worked on design of high power aerospace clutches. The wet clutch is always superior to a dry clutch. It is possible to design the Raider wet clutch to be...
Forum: Rotorheads
18th May 2023, 14:12
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

Next up will be FARA. The Army will pick what is...

Next up will be FARA. The Army will pick what is best for their soldiers, as their lives depend on this equipment. This will override jobs in Connecticut concerns. The clutched pusher prop on Raider...
Forum: Rotorheads
16th May 2023, 20:02
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

Sikorsky strove to be second best. Pick us, we're...

Sikorsky strove to be second best. Pick us, we're kinda good. But it isn't about what Sikorsky wants to build, it's about what the customer wants. When Bob Lutz was at Chrysler, he saved Chrysler by...
Forum: Rotorheads
16th May 2023, 11:31
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

Interesting, thanks. Sikorsky engineering...

Interesting, thanks. Sikorsky engineering management just did not have the cojones to bid a tiltrotor for FLRAA. I imagine they **** a brick when they saw the speed and range requirements. Boeing is...
Forum: Rotorheads
16th May 2023, 11:15
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

Matching X2 performance just means achieving high...

Matching X2 performance just means achieving high speed for a short time. X2 never demonstrated anything else. It may have been shaking like a son of a gun. If vibration was the problem, then...
Forum: Rotorheads
15th May 2023, 13:06
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

Commando Cody Tiltrotor wins on speed and...

Commando Cody
Tiltrotor wins on speed and range, which is what the Army wanted. So why did Sikorsky bid what was likely to be a losing design? People rightfully questioned whether the X2 could be...
Forum: Rotorheads
13th May 2023, 12:50
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

Bell did perform sling load demos in 2020/2021. ...

Bell did perform sling load demos in 2020/2021.

https://www.ainonline.com/aviation-news/defense/2020-12-17/bell-v-280-flies-sling-loads...
Forum: Rotorheads
12th May 2023, 19:48
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

https://www.flightglobal.com/helicopters/not-just-...

https://www.flightglobal.com/helicopters/not-just-a-helicopter-company-bell-makes-a-play-for-the-future-of-vertical-lift/151927.article
https://en.wikipedia.org/wiki/Bell_V-280_Valor...
Forum: Rotorheads
12th May 2023, 17:06
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

Defiant only lifted 5300 lbs, Valor 10,000. I...

Defiant only lifted 5300 lbs, Valor 10,000. I agree in theory the Defiant should be able to lift more, but this was never demonstrated. Perhaps transitioning to forward flight with a heavy load is a...
Forum: Rotorheads
12th May 2023, 11:54
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

The Army has now started looking into what they...

The Army has now started looking into what they want as a future heavy lift helicopter. Defiant could only lift half what the Valor lifted, and Sikorsky's president said X2 technology would not make...
Forum: Rotorheads
27th Apr 2023, 20:20
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

The Bell Invictus should be able to meet all...

The Bell Invictus should be able to meet all requirements. Guessing a 12000-14000 lb gross weight with as much hp as the much larger 20000 lb Bell 525.

The Defiant X needed 10000 hp to "go fast",...
Forum: Rotorheads
27th Apr 2023, 02:41
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

The Defiant X used two 5000 shp Lycoming T55...

The Defiant X used two 5000 shp Lycoming T55 engines. Growth was slated to go to 7500 shp.
S97 9000 lbs gvw 2600 shp
S97X 16000 lb gvw 3000 shp
Invictus ?gvw 3600 shp
525 21000 lb gvw 3600...
Forum: Rotorheads
26th Apr 2023, 22:08
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

Bell added a second smaller engine to their...

Bell added a second smaller engine to their version of FARA. The GE engine appears to be too small for the Sikorsky FARA. Sikorsky could lose because the Army forced them to use too small of an...
Forum: Rotorheads
23rd Apr 2023, 18:56
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

Bell winning FLRAA has made Textron an attractive...

Bell winning FLRAA has made Textron an attractive take over candidate. Don't believe that the big boys aren't aware of this. You don't buy Bell, you merge with Textron by legally bribing Textron's...
Forum: Rotorheads
21st Apr 2023, 20:11
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

I was working for Sikorsky at the time at an...

I was working for Sikorsky at the time at an offsite location. I never worked this project. The work split with Bpeing was 50-50. Blades Boeing, rotors Sikorsky, transmissions Boeing., and so forth....
Forum: Rotorheads
21st Apr 2023, 14:27
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

That may be too harsh an assessment of Boeing...

That may be too harsh an assessment of Boeing engineering capabilities. Comanche and Defiant never reached production, but Boeing, partnered with Sikorsky, had substantial design responsibility....
Forum: Rotorheads
17th Apr 2023, 16:26
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

From another forum "I think its much more about...

From another forum "I think its much more about the adoption of open systems architecture which was viewed as an essential requirement by government for through life, cost effective support. Sikorsky...
Forum: Rotorheads
14th Apr 2023, 15:45
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

ok, good point.

ok, good point.
Forum: Rotorheads
13th Apr 2023, 15:11
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

If the Army budget holds, FARA lives, Apache dies...

If the Army budget holds, FARA lives, Apache dies
After the current multi-year contract, there will be an eventual Apache replacement, way down the road. If the budget tightens, FARA dies, but no...
Forum: Rotorheads
7th Apr 2023, 02:14
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

Chinook production is on life support? 12 for...

Chinook production is on life support? 12 for Egypt, a few for special forces.
Also isn't the reworked Apache coming to an end?
"In October 2016, the Army revealed they would not pursue another...
Forum: Rotorheads
6th Apr 2023, 23:30
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

Now there will likely be an industry...

Now there will likely be an industry consolidation in the next few years. Boeing will likely be the one to go, all they have is assembly of a European helicopter in Philadelphia. All else is coming...
Forum: Rotorheads
18th Dec 2022, 22:15
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

Agree

As it is, X2 technology still isn't proven after all these years. FARA is their last shot, and because of engine delays, Raider X has zero flight hours. Lose FARA and Sikorsky will no longer be a...
Forum: Rotorheads
7th Dec 2022, 17:05
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

I would not use the word flaws. Carrier based has...

I would not use the word flaws. Carrier based has special requirements. The Army won't pay for navalized special features. Just like there is a Sikorsky Black Hawk and a Sikorsky Seahawk. A sea...
Forum: Rotorheads
7th Dec 2022, 14:14
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

Osprey had the rotor diameter limited by the Navy...

Osprey had the rotor diameter limited by the Navy to fit on a carrier. Valor has no such restriction. Valor has a much nicer rotor diameter to aircraft weight ratio. A true hot rod.
Forum: Rotorheads
6th Dec 2022, 17:18
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

With thousands of Black Hawks, the Army will have...

With thousands of Black Hawks, the Army will have a mixed fleet for many years. The Army budget is tight. Possibly, FARA is sacrificed to fund Valor. So some high low mix will be the actuality, for...
Forum: Rotorheads
6th Dec 2022, 15:19
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

I am not saying there should not be an upgrade,...

I am not saying there should not be an upgrade, just that the higher capability will cost more. Politics has nothing to do with it. Of course new aircraft will cost more. So the Army flies fewer...
Forum: Rotorheads
6th Dec 2022, 10:52
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

Sikorsky partnered with Boeing to disrupt...

Sikorsky partnered with Boeing to disrupt development of Valor. This strategy failed. Both Valor and Defiant cost a lot more than a Black Hawk, use larger engines, higher fuel burn. Army Aviation...
Forum: Rotorheads
6th Dec 2022, 10:30
Replies: 271
Views: 54,097
Posted By noneofyourbusiness

The main rotor hub drag of Defiant means you...

The main rotor hub drag of Defiant means you could fly it fast or far, but not both. This will also play out in FARA.
Showing results 1 to 34 of 34


 
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