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Forum: Rotorheads

4th Aug 2019, 15:44

Replies: 488

S97 Raider

Views: 210,428

Posted By JohnDixson

The point was, we achieved some additional Nz...

The point was, we achieved some additional Nz capability with the wing, but less than some of us were expecting My point re the pusher was based on guessing that the FARA requirement might include a...

Forum: Rotorheads

1st Aug 2019, 11:29

Replies: 488

S97 Raider

Views: 210,428

Posted By JohnDixson

Sorry, wasn’t thinking about a wing, only a...

Sorry, wasn’t thinking about a wing, only a pusher. Just dreaming, I think. We did wing on/off maneuverability comparison with the S-67 as a NASA or Army contract ( do not recall the sponsor ).

Forum: Rotorheads

1st Aug 2019, 00:34

Replies: 488

S97 Raider

Views: 210,428

Posted By JohnDixson

Indeed it was, but doesn’t the FARA have a 180 kt...

Indeed it was, but doesn’t the FARA have a 180 kt cruise number?

Forum: Rotorheads

31st Jul 2019, 18:44

Replies: 488

S97 Raider

Views: 210,428

Posted By JohnDixson

I’m surprised that IFMU didn’t also suggest that...

I’m surprised that IFMU didn’t also suggest that SA might also propose an alternative: a compound version of the RAH-66 Comanche for FARA. Now that might get even my attention!

Forum: Rotorheads

3rd May 2019, 03:13

Replies: 488

S97 Raider

Views: 210,428

Posted By JohnDixson

The transition to forward flight resulted in the...

The transition to forward flight resulted in the main rotor downwash impacting the low horizontal tail, which is what of course drove the tail down and nose up.
( About a year later, we were to...

Forum: Rotorheads

2nd May 2019, 02:25

Replies: 488

S97 Raider

Views: 210,428

Posted By JohnDixson

Sans, it wasn’t low gain on the 59 ( in the sense...

Sans, it wasn’t low gain on the 59 ( in the sense of control sensitivity ), but rather low blade range, i.e., total moment capability longitudinally. The hell of that issue was that they’d been up...

Forum: Rotorheads

24th Jul 2018, 20:54

Replies: 488

S97 Raider

Views: 210,428

Posted By JohnDixson

The short answer here would seem to be that the...

The short answer here would seem to be that the Defiant pictures reflect a tail wheel, and assuming the Army crashworthy standards remain at least as rigorous as for the UTTAS design, that gear will...

Forum: Rotorheads

11th May 2017, 16:20

Replies: 488

S97 Raider

Views: 210,428

Posted By JohnDixson

The US Army thinking from Vietnam controlled...

The US Army thinking from Vietnam controlled their requirements for hover and climb for the UTTAS. Specifically, they required, from an HOGE hover at design gross weight, and at 4000'Hp/95F, a...

Forum: Rotorheads

20th Oct 2015, 18:33

Replies: 488

S97 Raider

Views: 210,428

Posted By JohnDixson

Sultan, Taxpayers and Structure

Actually, Nick, I was interested in what " structure " ( that you single handedly got Bell to build ) could possibly lead to dissatisfaction by both Sultan and the taxpayers. The post by IFMU and...

Forum: Rotorheads

19th Oct 2015, 20:09

Replies: 488

S97 Raider

Views: 210,428

Posted By JohnDixson

Building/Structure

You are correct, Sultan, you used the term " structure ".

My question remains as posed. Just imagine I had used " structure " instead of " building ".

John

Forum: Rotorheads

8th Oct 2015, 03:08

Replies: 488

S97 Raider

Views: 210,428

Posted By JohnDixson

Nick's Building

And what is the building all about, Sultan? Design Spaces? Test Labs/Rotor Test Stands?

John

Forum: Rotorheads

22nd Apr 2013, 12:58

Replies: 488

S97 Raider

Views: 210,428

Posted By JohnDixson

53K Costs

Sultan,

Please take a look at:

CH-53K: The U.S. Marines? HLR Helicopter Program (http://www.defenseindustrydaily.com/ch53k-the-us-marines-hlr-helicopter-program-updated-01724/)

There was a...

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