Boeing-Sikorsky SB>1 Defiant (Model S-100)

[yasotay]

I am hopeful that the U.S. Army will provide more details on the decision since GAO agreed the SB>1 did not meet the requirements. However I suspect this will not happen as the Sikorsky coaxial compound "X2" technology is still in the running for the FARA competition.
I honestly find it exceedingly disingenuous for Sikorsky to tout the technology as less risky.

 

[donnage99]

I am hopeful that the U.S. Army will provide more details on the decision since GAO agreed the SB>1 did not meet the requirements. However I suspect this will not happen as the Sikorsky coaxial compound "X2" technology is still in the running for the FARA competition.
I honestly find it exceedingly disingenuous for Sikorsky to tout the technology as less risky.

I mean what other angle can they really go for to remain competitive

 

[Forest Green]

Sikorsky's Black Hawk Replacement Bid Cost Half Of Bell's But Lacked Info To Back It Up

Sikorsky recently lost a protest against Bell's contract award for the FLRAA tender, arguing unsuccessfully that its bid was unfairly judged.

www.thedrive.com

 

[apparition13]

Sikorsky's Black Hawk Replacement Bid Cost Half Of Bell's But Lacked Info To Back It Up

Sikorsky recently lost a protest against Bell's contract award for the FLRAA tender, arguing unsuccessfully that its bid was unfairly judged.

www.thedrive.com

Given time and budget overruns for Lockheed aircraft contracts I suspect DoD is looking at any of their bids with extra skepticism.

 

[Moose]

Sikorsky's Black Hawk Replacement Bid Cost Half Of Bell's But Lacked Info To Back It Up

Sikorsky recently lost a protest against Bell's contract award for the FLRAA tender, arguing unsuccessfully that its bid was unfairly judged.

www.thedrive.com

Given time and budget overruns for Lockheed aircraft contracts I suspect DoD is looking at any of their bids with extra skepticism.

Regardless of track record, it's pretty clear DoD felt it couldn't bank on those figures with the information given.

 

[fightingirish]

The Sikorsky-Boeing SB>1 Defiant is now displayed at the Army Aviation Museum at Fort Novosel in Alabama.
Source:

SB>1 Defiant High-Speed Helicopter Put To Rest In A Museum

The Sikorsky-Boeing SB>1 Defiant lost to Bell's V-280 Valor for the Future Long-Range Assault Aircraft tender, but its underlying X2 technology lives on.

www.twz.com

 

[VTOLicious]

The Sikorsky-Boeing SB>1 Defiant is now displayed at the Army Aviation Museum at Fort Novosel in Alabama.
Source:

SB>1 Defiant High-Speed Helicopter Put To Rest In A Museum

The Sikorsky-Boeing SB>1 Defiant lost to Bell's V-280 Valor for the Future Long-Range Assault Aircraft tender, but its underlying X2 technology lives on.

www.twz.com

Hopefully some high res photos will appear soon. Btw, would love to see it exhibited with Bell's demonstrator next to it!

 

[yasotay]

Good thing it is a multi-story building!

I note that the original ABC Demonstrator can be seen just behind the SB-1. With the eventual emplacement of an S-97 in the facility, the entire sorry affliction Sikorsky had with this technology will be enshrined with AH-56 and RAH-66.

 

[TomcatViP]

History will remind that after building the Missile with a man in it, 50 years later, LM (with Boeing) managed to create the Giant Gearbox with two men suspended to it!

 

[yasotay]

Defiant at the Army Aviation Museum.

 

[EmoBirb]

Defiant at the Army Aviation Museum.View attachment 778273View attachment 778272

Beautiful shots. Shame nothing came off of this helo in the end. At least it won over the V-280 with regards to looks!

 

[yasotay]

Until you have stood next to the Defiant you cannot appreciate just how BIG the rotor system is.

 

[SteveO]

In my opinion the Defiant made tilt rotors look simpler and easier to maintain

Great looking beast though!

 

[yasotay]

In my opinion the Defiant made tilt rotors look simpler and easier to maintain

Great looking beast though!

Except that it is something like eight feet tall.

 

[EmoBirb]

In my opinion the Defiant made tilt rotors look simpler and easier to maintain

Great looking beast though!

I'm unsure if I'd say that coaxials are more complex than tiltrotors. After all the USSR/Russia operates fairly rugged coaxials in naval and conventional environments.

 

[SteveO]

I'm unsure if I'd say that coaxials are more complex than tiltrotors. After all the USSR/Russia operates fairly rugged coaxials in naval and conventional environments.

I guess the mechanical principles are similar but the much higher performance required of the Defiant bulked everything up considerably.

The AVX proposal looked more like the Kamov designs.

 

[HaveVoid]

Beautiful shots. Shame nothing came off of this helo in the end. At least it won over the V-280 with regards to looks!

We may have to agree to disagree on that one, I remember thinking when the pictures came out of it at the tradeshow that they took it to right towards the end of the source selection that the Defiant sitting amongst the stands and rigging required to remove the blades looked very reminiscent of a submarine in drydock.

 

[EmoBirb]

We may have to agree to disagree on that one, I remember thinking when the pictures of it at the tradeshow that they took it to right towards the end of the source selection came out that the Defiant sitting amongst the stands and rigging required to remove the blades looked very reminiscent of a submarine in drydock.

Submarines are pretty though

 

[EmoBirb]

I guess the mechanical principles are similar but the much higher performance required of the Defiant bulked everything up considerably.

The AVX proposal looked more like the Kamov designs.

That's a fair assumption I think

 

[yasotay]

AVX was very clear that they started with the Kamov rotor system and worked to make it more functional for higher speed flight.

 

[yeetmahboi]

Lovely exhaust shroud. Looks like a cheese grate.

 

[TomcatViP]

It's a turbulator that retracts and expand with the exhaust temperature. This keeps it clean and unobstructed along the time (less maintenence).