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Search: Posts Made By: Commando Cody
Showing results 1 to 35 of 40
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Forum: Rotorheads
20th Apr 2024, 06:02
Replies: 271
Views: 54,093
Posted By Commando Cody

I suspect that Valor will use the same...

I suspect that Valor will use the same methodology used by the V-22 if the proprotors can't be raised for whatever reason. If they are stopped in the 12-4-8 o'clock position, the blades don't hit...
Forum: Rotorheads
16th May 2023, 01:58
Replies: 271
Views: 54,093
Posted By Commando Cody

As always when the Gov't is involved, there's an...

As always when the Gov't is involved, there's an alphabet soup. JMR/JMR-TD was the technology demonstration phase and it provided data to FVL, which was for operational vehicle; FLRAA and FARA are...
Forum: Rotorheads
16th May 2023, 01:11
Replies: 271
Views: 54,093
Posted By Commando Cody

To my mind Sikorsky was hoping the problems that...

To my mind Sikorsky was hoping the problems that had plagued X2 so far could be worked out and at a lower cost than a Tilt-Rotor. They may also have felt that if performance of the two competitors...
Forum: Rotorheads
15th May 2023, 00:04
Replies: 271
Views: 54,093
Posted By Commando Cody

Of course Bell achieved a max level flight speed...

Of course Bell achieved a max level flight speed of 305 knots against their original target of 280 knots, which is even more impressive. Still, your post raises an interesting question: Why couldn't...
Forum: Rotorheads
29th Apr 2023, 22:24
Replies: 271
Views: 54,093
Posted By Commando Cody

From what I've been able to determine, when Bell...

From what I've been able to determine, when Bell and Boeing talked, the latter wanted too much control, espeecially in the Fkight Control System, and Bell wouldn't agree so Boeing walked (much to...
Forum: Rotorheads
28th Apr 2023, 20:03
Replies: 271
Views: 54,093
Posted By Commando Cody

When I was talking how Bell's power requirement...

When I was talking how Bell's power requirement was derived I was referring to V-280's because Defiant-X was cited. In the absence of the stringent hot and high requirement I don't know that they'd...
Forum: Rotorheads
28th Apr 2023, 02:59
Replies: 271
Views: 54,093
Posted By Commando Cody

Max. allowable weight for FARA has been specified...

Max. allowable weight for FARA has been specified by Army.

Regarding power requirements, I don't know about Sikorsky, but Bell publicly stated where their power requirement came from. For FLRAA...
Forum: Rotorheads
27th Apr 2023, 07:54
Replies: 271
Views: 54,093
Posted By Commando Cody

If Army changes the requirements to allow two...

If Army changes the requirements to allow two engines, the whole program collapses. Boeing, Karem and AVX will come back and say, "Well, if we had been allowed to use two engines, our designs would...
Forum: Rotorheads
27th Apr 2023, 07:37
Replies: 271
Views: 54,093
Posted By Commando Cody

Sikorsky wasn't "...forced to use to small of an...

Sikorsky wasn't "...forced to use to small of an an engine" unless you say both competitors were"forced". In the basic RFP it said that the aircraft should be designed to use a single ITE . That...
Forum: Rotorheads
25th Apr 2023, 19:51
Replies: 271
Views: 54,093
Posted By Commando Cody

Well, when you're trying to sell something,...

Well, when you're trying to sell something, you'll say it's perfect for whatever you hope you can get someone to pay for it.

For Sikorsky to win FARA, they're going to have to reliably show...
Forum: Rotorheads
24th Apr 2023, 06:09
Replies: 271
Views: 54,093
Posted By Commando Cody

I suspect that's the same reason that Karem and...

I suspect that's the same reason that Karem and AVX didn't make the cut.
Forum: Rotorheads
24th Apr 2023, 06:06
Replies: 271
Views: 54,093
Posted By Commando Cody

Boeing and Sikorsky indeed proposed more complex...

Boeing and Sikorsky indeed proposed more complex compound helicopters while Bell proposed an advanced, but conventional, helicopter, the only non-compound submitted by the original five respondents....
Forum: Rotorheads
24th Apr 2023, 05:55
Replies: 271
Views: 54,093
Posted By Commando Cody

Textron's 2022 total revenues were 20.5 times...

Textron's 2022 total revenues were 20.5 times what its defense revenues were and when many companies were showing a decline in revenue it ha nearly 4% growth. It might look desirable to some but my...
Forum: Rotorheads
22nd Apr 2023, 20:17
Replies: 271
Views: 54,093
Posted By Commando Cody

For the record, both FARA competitors say they...

For the record, both FARA competitors say they are ready to go. The delay is with the engine being delivered. As far as growing in size or adding an engine, haven't seen any indication of that. That...
Forum: Rotorheads
22nd Apr 2023, 19:53
Replies: 271
Views: 54,093
Posted By Commando Cody

Take this for what it's worth, but I have heard...

Take this for what it's worth, but I have heard from multiple sources that when it was announced at Bell that Boeing would not be a partner on Valor, there was actual cheering.
Forum: Rotorheads
21st Apr 2023, 05:10
Replies: 271
Views: 54,093
Posted By Commando Cody

It's arguable that Boeing never had engineering...

It's arguable that Boeing never had engineering capability to develop new modern platforms. No helicopter of their own original design has eve rentered production. All their craft that entered...
Forum: Rotorheads
20th Apr 2023, 05:15
Replies: 271
Views: 54,093
Posted By Commando Cody

Sans and CTR. Not that surprising. ...

Sans and CTR.

Not that surprising. Boeing/LM's protest was basically, "Army didn't play fair and if you marked us down you should have marked Bell down as well". GAO said, "No, Army played fair...
Forum: Rotorheads
10th Jan 2023, 03:36
Replies: 271
Views: 54,093
Posted By Commando Cody

What worked against Speedhawk was that it turned...

What worked against Speedhawk was that it turned out to offer no significant advantages (including speed, as it turns out) over a conventional helicopter and was a lot heavier.
Forum: Rotorheads
10th Jan 2023, 03:32
Replies: 271
Views: 54,093
Posted By Commando Cody

Problems with Cheyenne included that it was not...

Problems with Cheyenne included that it was not as fast as it was hoped, was behind schedule and had vibration issues. Also, Army was thinking that agility was going to be more important than speed...
Forum: Rotorheads
22nd Dec 2022, 07:43
Replies: 271
Views: 54,093
Posted By Commando Cody

It's unlikely this was a low bid (in...

It's unlikely this was a low bid (in governmentalese "Lowest Price Technically Acceptable") competition. Those are used when, "... requirements are well defined; risk of unsuccessful contract...
Forum: Rotorheads
17th Dec 2022, 03:55
Replies: 271
Views: 54,093
Posted By Commando Cody

This is second had. but I've heard it a number of...

This is second had. but I've heard it a number of time...When it was announced at Bell that Boeing would not be partnering with them on FLRAA, there were cheers among those affected. The reaction at...
Forum: Rotorheads
16th Dec 2022, 02:56
Replies: 271
Views: 54,093
Posted By Commando Cody

Two things here. First, the S-97 was promised to...

Two things here. First, the S-97 was promised to be a 220 knot aircraft, but late in the test program Sikorsky admitted they didn't think they would be able to reach that, so that has to be taken...
Forum: Rotorheads
16th Dec 2022, 02:44
Replies: 271
Views: 54,093
Posted By Commando Cody

The Army mandated that FARA must have a single...

The Army mandated that FARA must have a single engine, that Army would specif. In fact, it is delays in supplying that engine that has slipped the flight test progrm for FARA. Bell finished its...
Forum: Rotorheads
16th Dec 2022, 02:38
Replies: 271
Views: 54,093
Posted By Commando Cody

Absolutely! Every helicopter they've ever had in...

Absolutely! Every helicopter they've ever had in service was designed by another company. In fact, in their entire history they only built four airframes of their own design that ever flew, three...
Forum: Rotorheads
14th Dec 2022, 06:27
Replies: 271
Views: 54,093
Posted By Commando Cody

Industrial base concerns will no doubt be take...

Industrial base concerns will no doubt be take into account "off the record", but that'll be part of the decision. It's important to keep in mind that this is Army's fifth attempt to replace the...
Forum: Rotorheads
14th Dec 2022, 05:36
Replies: 271
Views: 54,093
Posted By Commando Cody

Works fine if you always have a long enough...

Works fine if you always have a long enough runway with clear enough approach and departure space and a ramp to park the things. But then, if you have those anywhere you might need to go, VTOL makes...
Forum: Rotorheads
12th Dec 2022, 22:22
Replies: 271
Views: 54,093
Posted By Commando Cody

The pusher won't affect the size of the footprint...

The pusher won't affect the size of the footprint but main rotor diameter will, I suspect they are being circumspect on purpose.
Forum: Rotorheads
12th Dec 2022, 22:18
Replies: 271
Views: 54,093
Posted By Commando Cody

Although Bell has shown models and artis' concept...

Although Bell has shown models and artis' concept of attack V280s, that is aimed more at USMC and other potential customers, although they could certainly could build it if someone was willing to...
Forum: Rotorheads
12th Dec 2022, 19:47
Replies: 271
Views: 54,093
Posted By Commando Cody

CTR and Jack Carson provided good data already,...

CTR and Jack Carson provided good data already, let me try to add a bit more.

I can't figure out what you mean by, "...but what's the point sending it to some unprepared landing site during combat...
Forum: Rotorheads
10th Dec 2022, 23:21
Replies: 271
Views: 54,093
Posted By Commando Cody

Thanks. #2 flew over 900 hours

Thanks. #2 flew over 900 hours
Forum: Rotorheads
10th Dec 2022, 22:37
Replies: 271
Views: 54,093
Posted By Commando Cody

I don't know why folks (not just you) focus so...

I don't know why folks (not just you) focus so much on hover. The facts are simple: A Tilt-Rotor will not hover as efficiently as a comparable conventional helicopter of the same technology level. ....
Forum: Rotorheads
10th Dec 2022, 22:14
Replies: 271
Views: 54,093
Posted By Commando Cody

Actually, I calculated this for another project...

Actually, I calculated this for another project back in June. IIRC, Every Tilt Rotor design has flown more hours than all X2 aircraft combined. In fact, you have to add the S-69's (which was a...
Forum: Rotorheads
9th Dec 2022, 06:47
Replies: 271
Views: 54,093
Posted By Commando Cody

SASless: I would say it's not relevant as...

SASless:

I would say it's not relevant as to what the V280's (or SB>1's) helicopter performance actually is compared to the Black Hawk. Army is not asking for another Black Hawk, any more than...
Forum: Rotorheads
9th Dec 2022, 06:05
Replies: 271
Views: 54,093
Posted By Commando Cody

https://cimg9.ibsrv.net/gimg/pprune.org-vbulletin/...

https://cimg9.ibsrv.net/gimg/pprune.org-vbulletin/1920x1125/sb_1_h_60c_3a04e8ee3c871e787a8bca072183fba5fc2546aa.jpg...
Forum: Rotorheads
9th Dec 2022, 05:53
Replies: 271
Views: 54,093
Posted By Commando Cody

For some reason I can't get multi quote to work....

For some reason I can't get multi quote to work. In any case, Bell had designed in the option for folding for a naval variant from the start of the V280 program and that work may have even preceded...
Showing results 1 to 35 of 40
 
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