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Search: Posts Made By: JimEli
Showing results 1 to 12 of 12
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Forum: Rotorheads
5th Apr 2024, 17:24
Replies: 100
Views: 6,993
Posted By JimEli

https://cimg5.ibsrv.net/gimg/pprune.org-vbulletin/...

https://cimg5.ibsrv.net/gimg/pprune.org-vbulletin/256x171/facepalm_d080bacbec296adc4bb3e3e49e6605391dcd1072.png
Forum: Rotorheads
30th Mar 2024, 23:48
Replies: 100
Views: 6,993
Posted By JimEli

“Some rotors can therefore be said to behave like...

“Some rotors can therefore be said to behave like a gyroscope in that their phase-lag is 90 degrees.”

FWIW, I believe the reference is to the Bell-Hiller rotor system, although not explicitly...
Forum: Military Aviation
13th Feb 2024, 15:50
Replies: 30
Views: 7,179
Posted By JimEli

I find this statement incredulous. 30+ years...

I find this statement incredulous.

30+ years in H-60 with blade deice and anti-icing equipment. Flew SPIFR EMS in the US Pacific NW. I recall a particular IFR flight out of Phoenix on a January...
Forum: Rotorheads
22nd Jan 2024, 14:26
Replies: 13
Views: 1,341
Posted By JimEli

You might be looking in the wrong location. ...

You might be looking in the wrong location.

Does the fire department only test hydrants just before a fire?

My guess would be that the aircraft was tested and certified in that configuration....
Forum: Rotorheads
2nd Dec 2023, 19:35
Replies: 59
Views: 12,411
Posted By JimEli

Most are trying to describe the same thing with...

Most are trying to describe the same thing with confused terminology and reasoning. The resultant of 2 identical colinear forces is double the individual force.

However, the AS350 dual hydraulic...
Forum: Rotorheads
25th Oct 2023, 14:36
Replies: 9
Views: 1,820
Posted By JimEli

IMHO, this would not necessarily result in an...

IMHO, this would not necessarily result in an immediate loss of control, but would be dependent upon the situation when loss of hydraulics occurred. One thing is for certain, there would have been an...
Forum: Rotorheads
25th Oct 2023, 00:30
Replies: 9
Views: 1,820
Posted By JimEli

I applaud your desire to learn more about your...

I applaud your desire to learn more about your aircraft. And don’t feel embarrassed, my experience is that few pilots truly understand the AStar hydraulics (including the yaw load compensator). In...
Forum: Rotorheads
23rd Aug 2023, 13:32
Replies: 52
Views: 8,855
Posted By JimEli

FWIW, fixed-pitch tail rotor situations are not...

FWIW, fixed-pitch tail rotor situations are not necessarily easier to model. It is hard to determine fuselage and appendage aerodynamics, especially at varying airspeeds with increased yaw and roll...
Forum: Rotorheads
22nd Aug 2023, 13:38
Replies: 52
Views: 8,855
Posted By JimEli

Based upon my experience developing and...

Based upon my experience developing and qualifying helicopter simulators with the FAA (from a test-pilot perspective) the flight model of a simulator is based upon actual flight test data. The data...
Forum: Rotorheads
2nd Jan 2023, 14:53
Replies: 54
Views: 16,498
Posted By JimEli

As best I can tell, gusty conditions at KBVU...

As best I can tell, gusty conditions at KBVU around time of crash:KBVU 280035Z AUTO 17011G20KT 10SM BKN090 17/M02 A2977 RMK AO2
Forum: Rotorheads
22nd Dec 2022, 14:03
Replies: 161
Views: 18,695
Posted By JimEli

I think a pulmonary embolism would ground you: ...

I think a pulmonary embolism would ground you:

Pfizer’s COVID-19 vaccine has been linked to blood clotting in older individuals, according to the FDA. FDA researchers looked at data covering 17.4...
Forum: Rotorheads
22nd Dec 2022, 02:25
Replies: 161
Views: 18,695
Posted By JimEli

Allow me to assist (it's not a mainstream news...

Allow me to assist (it's not a mainstream news oraganization, so you might be inclined to find it unreliable).
Australian government stats....
Showing results 1 to 12 of 12


 
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