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Search: Posts Made By: JohnDixson
Showing results 1 to 35 of 950
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Forum: Rotorheads
31st Mar 2024, 14:19
Replies: 100
Views: 6,965
Posted By JohnDixson

The rotor coupling response suggests behavior...

The rotor coupling response suggests behavior more like a rate gyro, at least in the machines I’ve been exposed to with reasonably broad maneuver envelopes. The S-67 was an interesting example. It...
Forum: Rotorheads
20th Mar 2024, 01:46
Replies: 13
Views: 4,706
Posted By JohnDixson

Good guess LW! During the competition with the...

Good guess LW! During the competition with the French for the Turkish Jandama award, we got rid of all the seats except for the two gunners seats ( occupied by two SA crew-one former USMC 53...
Forum: Military Aviation
15th Mar 2024, 14:46
Replies: 73
Views: 14,541
Posted By JohnDixson

T&B-glad you brought up that sling training...

T&B-glad you brought up that sling training anomaly. Example: in 1963 all pilots being trained got sling training in the basic course ( H-19s or H-34s ).
In 1977-8 we trained the trainers at Ft...
Forum: Rotorheads
2nd Mar 2024, 11:25
Replies: 17
Views: 6,535
Posted By JohnDixson

R9chelsea, please pass your Dad best wishes and...

R9chelsea, please pass your Dad best wishes and renewed thanks for his really first class assistance. Those of us in the pilot office at SA will always be in his debt for the help. Don typified the...
Forum: Rotorheads
27th Feb 2024, 10:15
Replies: 148
Views: 26,315
Posted By JohnDixson

Crab’s post 106 nails the problem. But when this...

Crab’s post 106 nails the problem. But when this subject came up, there would still be those who maintained you could always “ get ‘er done “ without any IMC capability. About 2 months out of flight...
Forum: Rotorheads
22nd Feb 2024, 12:26
Replies: 36
Views: 8,411
Posted By JohnDixson

212: showing my age….but, does the commercial...

212: showing my age….but, does the commercial pilot community teach helicopter instrument take-offs? Or for that matter, does the military?
Forum: Military Aviation
14th Feb 2024, 12:59
Replies: 33
Views: 12,626
Posted By JohnDixson

Chopper 2004, I think all those who became aware...

Chopper 2004, I think all those who became aware of the wartime rescues performed by the original Jollies and their A1 escorts will cheer on the designation Jolly Green.
You know, a lot of folks...
Forum: Military Aviation
13th Feb 2024, 17:09
Replies: 33
Views: 12,626
Posted By JohnDixson

Chevvron, I heard a differing version of the...

Chevvron, I heard a differing version of the WS-70 situation, but it ended with the Saudis buying standard UH-60s thru the US State Dept FMS ( Foreign Military Sales ) Program, wherein countries...
Forum: Rotorheads
12th Feb 2024, 13:08
Replies: 76
Views: 34,935
Posted By JohnDixson

Like to offer a clarification to this phrase...

Like to offer a clarification to this phrase quoted from Tottigol:

” however in this case the 139 beat the '60 in just about every check mark of the requirements “

Not close in the Ballistic...
Forum: Military Aviation
11th Feb 2024, 16:15
Replies: 30
Views: 7,173
Posted By JohnDixson

Henra, the production machines did not.

Henra, the production machines did not.
Forum: Military Aviation
8th Feb 2024, 22:19
Replies: 30
Views: 7,173
Posted By JohnDixson

Been awhile since getting a weather brief at a...

Been awhile since getting a weather brief at a USAF Base-will there be a record of the brief given to this USMC crew?
Forum: Military Aviation
8th Feb 2024, 14:54
Replies: 30
Views: 7,173
Posted By JohnDixson

Sandie, the other aspect that came to mind was re...

Sandie, the other aspect that came to mind was re to Lone Wolf’s observation that the E is an IFR capable ship flying qualities-wise is fine. But as you are intimating ( possibly ) if they could not...
Forum: Military Aviation
8th Feb 2024, 13:13
Replies: 30
Views: 7,173
Posted By JohnDixson

Not as familiar with the 53E s you might think,...

Not as familiar with the 53E s you might think, LW-the 53E started test flights in early 74 and the UTTAS ( UH-60 ) kicked off in the Fall of that year and absorbed all of my time. I just attempted...
Forum: Military Aviation
7th Feb 2024, 22:24
Replies: 30
Views: 7,173
Posted By JohnDixson

Received this from a friend in TX earlier...

Received this from a friend in TX earlier today-was a local Fox News source:

“First responders are continuing to search for the aircrew, according to the U.S. Marine Corps.

"The U.S. Marine...
Forum: Rumours & News
31st Jan 2024, 14:03
Replies: 704
Views: 195,716
Posted By JohnDixson

Re ME’s post 151: Is it interesting to contrast...

Re ME’s post 151: Is it interesting to contrast the recent Boeing Chief Executive background with that of Guillaume Faury at Airbus. Would the MCAS mess would have passed muster at Airbus?
Forum: Military Aviation
1st Jan 2024, 13:49
Replies: 1,216
Views: 414,992
Posted By JohnDixson

SAS and Lonewolf: With indecisive national...

SAS and Lonewolf: With indecisive national leadership, the rules of engagement imposed on local commanders can easily snatch defeat from the jaws of victory. Had some experience with that some...
Forum: Military Aviation
20th Dec 2023, 12:54
Replies: 40
Views: 13,061
Posted By JohnDixson

SAS: in reading the WSJ article ( and the other...

SAS: in reading the WSJ article ( and the other stories I’ve seen to date ), I haven’t seen a statement as to how many hours were on the clutches in the Japan fatal.
Not being critical of the folks...
Forum: Rotorheads
16th Dec 2023, 21:22
Replies: 38
Views: 11,678
Posted By JohnDixson

Curious, Democritus: prior to your Aberdeen...

Curious, Democritus: prior to your Aberdeen testing, had the ST been exposed to any icing behind the US Army CH-47 icing tanker?
Forum: Rotorheads
7th Nov 2023, 11:45
Replies: 558
Views: 151,800
Posted By JohnDixson

SAS, as it has been the subject of comment in the...

SAS, as it has been the subject of comment in the FARA thread, the Army may not now have access to the technical expertise then residing in the Army Aviation Systems Command, and specifically the...
Forum: Rotorheads
29th Oct 2023, 12:20
Replies: 186
Views: 38,566
Posted By JohnDixson

Well, thank you very much for trying to chase...

Well, thank you very much for trying to chase down the requirements document (s). Your analogy does seem on point.
Forum: Rotorheads
26th Oct 2023, 19:15
Replies: 186
Views: 38,566
Posted By JohnDixson

Duplicate-Sorry

Duplicate-Sorry
Forum: Rotorheads
26th Oct 2023, 19:14
Replies: 186
Views: 38,566
Posted By JohnDixson

Yes, SD and wasn’t that beyond ironic, at least...

Yes, SD and wasn’t that beyond ironic, at least to those of us who vividly recall the oft repeated rule at SA in 1972-3 as we put together the design: “there will be zero exceptions”.*
But to my...
Forum: Rotorheads
26th Oct 2023, 10:29
Replies: 186
Views: 38,566
Posted By JohnDixson

Good point re requirements LW: Think I posted a...

Good point re requirements LW: Think I posted a query on the subject a while ago, but here goes again. Back to the UTTAS program for a minute. The Army started studies in 1968, while the Vietnam War...
Forum: Rotorheads
13th Oct 2023, 20:52
Replies: 10
Views: 2,103
Posted By JohnDixson

LW and IFMU-your thinking brought back some...

LW and IFMU-your thinking brought back some history.

My first thoughts went back to the rear seat controls in the CH-54 where the cyclic controlled pitch/roll and yaw. But the results of that...
Forum: Rotorheads
8th Oct 2023, 15:38
Replies: 33
Views: 3,447
Posted By JohnDixson

After 39 years in a group that was composed of...

After 39 years in a group that was composed of all 4 uniformed services, along with their disparate training paths, I’m not touching this discussion! However, after a lot of domestic and...
Forum: Rotorheads
6th Oct 2023, 13:12
Replies: 28
Views: 5,458
Posted By JohnDixson

Spline Drive and Albatross: Good and very...

Spline Drive and Albatross: Good and very relevant comments. You can imagine that mounting a main box with not only higher head moment capability, but also a 5 degree forward main shaft tilt as...
Forum: Rotorheads
16th Sep 2023, 17:20
Replies: 558
Views: 151,800
Posted By JohnDixson

SAS, I’d guess that there are folks still in...

SAS, I’d guess that there are folks still in harness that recall the previous Westland UH-60 effort aimed at the Saudi requirement. The Saudi’s ended up buying straight off the line UH-60s at FMS (...
Forum: Rotorheads
15th Sep 2023, 21:27
Replies: 558
Views: 151,800
Posted By JohnDixson

Understand-thanks. John

Understand-thanks.

John
Forum: Rotorheads
15th Sep 2023, 19:35
Replies: 558
Views: 151,800
Posted By JohnDixson

When the US Army issued their Request or Proposal...

When the US Army issued their Request or Proposal in 1972, it was the result of at least 4 years of serious study. That request was based on a very detailed Material Need Document, which in turn was...
Forum: Rotorheads
13th Sep 2023, 13:58
Replies: 558
Views: 151,800
Posted By JohnDixson

60 FM wrote: ”As big a fan as I am of the...

60 FM wrote:
”As big a fan as I am of the platform, the Lockheed spokesman’s comment about the toughness of the H-60 seems pretty lame when you compare how the original Sikorsky team went after the...
Forum: Rotorheads
3rd Sep 2023, 16:56
Replies: 17
Views: 3,022
Posted By JohnDixson

Sorry Jim-thought I posted an acknowledgement of...

Sorry Jim-thought I posted an acknowledgement of my error, but didn’t push the “Post” button apparently.

The larger machines of course have a real chance to cause trouble in this arena. The CH-53...
Forum: Rotorheads
31st Aug 2023, 13:51
Replies: 17
Views: 3,022
Posted By JohnDixson

Hello Jim- your chart included the 53E and 101...

Hello Jim- your chart included the 53E and 101 and Mi-26, but where is the V-22?
Forum: Military Aviation
26th Aug 2023, 21:24
Replies: 10,295
Views: 4,588,556
Posted By JohnDixson

Thanks, 212. Not exactly new tech, but effective...

Thanks, 212. Not exactly new tech, but effective depending on the vibration signature of the particular rotor.
Forum: Military Aviation
25th Aug 2023, 13:47
Replies: 10,295
Views: 4,588,556
Posted By JohnDixson

LW-Notice the bifilar atop the rotorhead on that...

LW-Notice the bifilar atop the rotorhead on that bluish pic of the MI-8/17? with the side aux fuel tank?
Forum: Rotorheads
4th Aug 2023, 18:36
Replies: 55
Views: 8,185
Posted By JohnDixson

Great pics, Crab-did you originally check out in...

Great pics, Crab-did you originally check out in the radial powered version?
Showing results 1 to 35 of 950
 
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