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Search: Posts Made By: CTR
Showing results 1 to 35 of 47
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Forum: Rotorheads
27th Apr 2024, 16:03
Replies: 271
Views: 54,095
Posted By CTR

Playing Musical Chairs with Engineers

My contacts at Bell told me what happened when LM filed their protest. For three months there was no funding to keep the Bell engineering teams on FLRAA together to continue working. So, with the...
Forum: Rotorheads
20th Apr 2024, 12:13
Replies: 271
Views: 54,095
Posted By CTR

No aircraft systems are ballistic proof, they are...

No aircraft systems are ballistic proof, they are only ballistic tolerant. But based on published photos, the V-280 will incorporates a fully redundant pylon conversion actuator design, like the...
Forum: Rotorheads
23rd May 2023, 10:00
Replies: 271
Views: 54,095
Posted By CTR

Stuart, To each their own. Humor is a very...

Stuart,

To each their own. Humor is a very personal thing. I however, found it hilariously funny in a Steinfeld episode way. It was also almost spot on accurate in the engineering technical...
Forum: Rotorheads
22nd May 2023, 19:29
Replies: 271
Views: 54,095
Posted By CTR

Hitler Reacts to the Bell V-280 winning FLRAA.

This is the first I ever saw this type of parody humor. When playing the video on a phone, you may need to hold the phone vertically to see the full image.

All the audio is in German, but the...
Forum: Rotorheads
20th May 2023, 20:23
Replies: 271
Views: 54,095
Posted By CTR

What Lockheed and Boeing lack in engineering...

What Lockheed and Boeing lack in engineering successes, they make up with a strong lobbying presence in Washington, and US representatives willing to bend to their will.
Forum: Rotorheads
19th May 2023, 10:17
Replies: 271
Views: 54,095
Posted By CTR

Wet versus Dry

Another large benefit of a wet clutch over a dry clutch is more predictable coefficient of friction. The highest risk of damage in this clutch application is during engagement with the main rotors...
Forum: Rotorheads
16th May 2023, 13:36
Replies: 271
Views: 54,095
Posted By CTR

CC, I concur your analysis, but I believe...

CC,

I concur your analysis, but I believe Sikorsky had dual path to winning in their strategy.

One path, was as you stated, hope that you can work out the X-2 technology for a Defiant size...
Forum: Rotorheads
29th Apr 2023, 22:49
Replies: 271
Views: 54,095
Posted By CTR

Commando Cody, My friends told me the same Boeing...

Commando Cody, My friends told me the same Boeing departure story. There’s also a follow up story.

After the Boeing FLRAA split, Bell approached Boeing with an offer that they build the fuselage...
Forum: Rotorheads
29th Apr 2023, 22:12
Replies: 271
Views: 54,095
Posted By CTR

Both FLRAA teams were partially funded to build...

Both FLRAA teams were partially funded to build prototypes by the US Army. Sikorsky/Boeing were awarded approximately 15% more than Bell was. The remainder of the funding required was ponied up by...
Forum: Rotorheads
29th Apr 2023, 22:11
Replies: 271
Views: 54,095
Posted By CTR

Both FLRAA teams were Partially funded to build...

Both FLRAA teams were Partially funded to build prototypes by the US Army. Sikorsky/Boeing were awarded approximately 15% more than Bell was. The remainder of the funding required was ponied up by...
Forum: Rotorheads
29th Apr 2023, 12:22
Replies: 271
Views: 54,095
Posted By CTR

Accepting Reality

To a slightly lesser degree, Sikorsky and LM management are suffering from the same delusions as EVTOL startup developers “This technology will be viable, if just given time for development, a huge...
Forum: Rotorheads
25th Apr 2023, 20:44
Replies: 271
Views: 54,095
Posted By CTR

Configurations

To paraphrase a famous UK Prime Minister:

“The Tiltrotor is a horrible aircraft configuration, except when compared against all other alternatives”
Forum: Rotorheads
23rd Apr 2023, 19:50
Replies: 271
Views: 54,095
Posted By CTR

The US Army only selected two companies to build...

The US Army only selected two companies to build prototype aircraft for the fly off. Boeing‘s proposal didn’t make the cut. However, if the final design requirement differ significantly from the...
Forum: Rotorheads
23rd Apr 2023, 18:40
Replies: 271
Views: 54,095
Posted By CTR

I heard a different background story. In early...

I heard a different background story. In early 2012, when Boeing and Bell were still teamed on the proposal for what was to evolve into FLRAA, Bell got uneasy, sensing that Boeing was up to...
Forum: Rotorheads
22nd Apr 2023, 00:46
Replies: 271
Views: 54,095
Posted By CTR

noneofyourbusines, If you’re referring to...

noneofyourbusines,

If you’re referring to Boeing‘s participation on the Comanche, I agree, they were an added engineering asset, especially for flight control systems. However, that was 25 years...
Forum: Rotorheads
21st Apr 2023, 15:32
Replies: 271
Views: 54,095
Posted By CTR

Boeing Helicopter Not Dead

I agree, Boeing Philly is not dead, yet. But their clean sheet, new platform design capabilities are gone. The Comanche was designed over 25 years ago.

Boeing’s primary contribution on FLRAA was...
Forum: Rotorheads
18th Apr 2023, 23:03
Replies: 271
Views: 54,095
Posted By CTR

Sans, I am surprised also. I wonder if...

Sans,

I am surprised also. I wonder if Boeing is going to continue the protest alone, or are they required to proceed together?

thank you for the link to the article. I especially like the...
Forum: Rotorheads
18th Apr 2023, 19:47
Replies: 271
Views: 54,095
Posted By CTR

MOSA

Very revealing to now re read this Breaking Defense article on MOSA from 2021.

https://breakingdefense.com/2021/10/how-mosa-makes-flraa-and-fara-weapon-systems-and-not-just-aircraft/?amp=1
Forum: Rotorheads
18th Apr 2023, 13:23
Replies: 271
Views: 54,095
Posted By CTR

I like that term “corporate egomania”. If you...

I like that term “corporate egomania”. If you don’t mind, I may steal it to use at a later date. That is also an excellent term of what happened while I was at McDonnell Douglas St. Louis during the...
Forum: Rotorheads
17th Apr 2023, 18:51
Replies: 271
Views: 54,095
Posted By CTR

John, not only has Sikorsky as a company changed...

John, not only has Sikorsky as a company changed substantially over the past 50 years, so have Boeing and Bell.

A major reason Bell lost UTTAS program to Sikorsky, was Bell became complacent, and...
Forum: Rotorheads
15th Apr 2023, 02:03
Replies: 271
Views: 54,095
Posted By CTR

Synopsis GAO Decision

Thanks for the GAO link Spline Drive. The following table from the GAO report provides a good insight to Sikorsky’s proposal content quality.
...
Forum: Rotorheads
14th Apr 2023, 15:38
Replies: 271
Views: 54,095
Posted By CTR

FMS

I would amend your final statement to add “US” before Army.

My point earlier was, Boeing and Sikorsky will have many years of profit coming in from foreign military sales of Blackhawks, Chinooks,...
Forum: Rotorheads
7th Apr 2023, 01:13
Replies: 271
Views: 54,095
Posted By CTR

Boeing Philly will die, but slowly

With the Chinook and Apache continuing production, for at least another decade, Boeing Philadelphia will continue to survive. However, Boeing has already lost all their engineering capability to...
Forum: Rotorheads
5th Jan 2023, 14:27
Replies: 271
Views: 54,095
Posted By CTR

Thank you for the data

FltMech,

Thanks for the data. I was especially interested in the requirement for minimum rotor to rotor spacing.

I just added to my earlier post an image superimposing the V-280 on top of the...
Forum: Rotorheads
5th Jan 2023, 12:16
Replies: 271
Views: 54,095
Posted By CTR

Flugzeug, Sorry, I only have access to what I can...

Flugzeug, Sorry, I only have access to what I can find online. There is quantitative data available on the Blackhawk out there. But as far as I can find, neither the Sikorsky Boeing team or Bell have...
Forum: Rotorheads
4th Jan 2023, 23:20
Replies: 271
Views: 54,095
Posted By CTR

Cynical minds can rarely be changed. I believe...

Cynical minds can rarely be changed. I believe you have a healthy skepticism. ;-)
Forum: Rotorheads
4th Jan 2023, 22:19
Replies: 271
Views: 54,095
Posted By CTR

Agreed. Check out the video below. ...

Agreed. Check out the video below.

https://www.facebook.com/BellFlight/videos/facts-matter-bell-v-280-footprint/371502048366351/

note that the V-280 not only provides 300 kits speed, but also...
Forum: Rotorheads
4th Jan 2023, 21:27
Replies: 271
Views: 54,095
Posted By CTR

Boeing Shows How the Defiant X Is Not That Different From the Black Hawk

It appears Boeing and Sikorsky have begun their media effort to overturn the Bell FLRAA contract award.

https://youtu.be/rXwlLFPP3FM

Lacking any valid Defiant X performance capabilities over...
Forum: Rotorheads
29th Dec 2022, 00:44
Replies: 271
Views: 54,095
Posted By CTR

Expected, but still disappointing.

Sikorsky and Boeing Challenge Army Decision to Replace Black Hawk with Bell V-280 Tiltrotor
...
Forum: Rotorheads
19th Dec 2022, 15:36
Replies: 271
Views: 54,095
Posted By CTR

The Time Has Come To End Tiltrotor Generalizations

Imagine if I said that all helicopters can safely auto rotate to the ground, that would be a false statement.

If I stated that all helicopters with two engines could safely climb following the...
Forum: Rotorheads
19th Dec 2022, 11:22
Replies: 271
Views: 54,095
Posted By CTR

To Little to Late

Winemaker,

Sadly, the Defiant completed these flight tests 5 months after the final report deadline had passed.

Additionally, if you read the full Flight Global article for details, you will...
Forum: Rotorheads
18th Dec 2022, 17:03
Replies: 271
Views: 54,095
Posted By CTR

X-2 Technology Future

Unless the US Army selects the Sikorsky Raider for the FARA award, I doubt X-2 technology has a future. Sikorsky has already stated it does not envision any commercial applications for the...
Forum: Rotorheads
17th Dec 2022, 12:42
Replies: 271
Views: 54,095
Posted By CTR

I can confirm from a highly reputable source,...

I can confirm from a highly reputable source, there were cheers of elation at Bell when the V-280 program split with Boeing was announced.

Additionally, two senior Bell engineers, who had worked...
Forum: Rotorheads
16th Dec 2022, 14:17
Replies: 271
Views: 54,095
Posted By CTR

Boeing Legal Strategy

CC,

Since Boeing has lost the capability to compete with engineering excellence, their competition strategy is now more a legal strategy.

Yes, the FARA is planned to eventually replace part of...
Forum: Rotorheads
15th Dec 2022, 20:38
Replies: 271
Views: 54,095
Posted By CTR

Add a second engine on FARA, and you have a...

Add a second engine on FARA, and you have a Boeing Apache replacement, not a Kiowa replacement (admittedly the original FARA spec is far from a Kiowa).

This will not make Boeing happy. With all...
Showing results 1 to 35 of 47
 
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