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Search: Posts Made By: aa777888
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Forum: Rotorheads
5th Jul 2020, 20:52
Replies: 71
Views: 6,131
Posted By aa777888

What crab said. Wait a second...holy crap, I...

What crab said.

Wait a second...holy crap, I agreed with crab! :}
Forum: Rotorheads
5th Jul 2020, 17:25
Replies: 28
Views: 2,313
Posted By aa777888

Thank you. Finally. But there you go...

Thank you. Finally.


But there you go again. Why the extended discourse on something that a) is only tangentially relevant to the original issue, and b) is something that every helicopter pilot...
Forum: Rotorheads
5th Jul 2020, 13:45
Replies: 28
Views: 2,313
Posted By aa777888

Both of you gentlemen are infuriating. You...

Both of you gentlemen are infuriating.

You tell me to do "A".

I tell you "A" is not possible.

So, when you realize this is the case, then you come back and tell me to do "B" as if it is an...
Forum: Rotorheads
5th Jul 2020, 13:04
Replies: 28
Views: 2,313
Posted By aa777888

BR--It would seem you did not read my post #17...

BR--It would seem you did not read my post #17 above very carefully. Without the requisite performance data in the POH, how am I to do this? I'd really like to know!
...
Forum: Rotorheads
5th Jul 2020, 13:01
Replies: 71
Views: 6,131
Posted By aa777888

I don't have one. The books I have say transverse...

I don't have one. The books I have say transverse flow. Right or wrong, that's what they say. And when it's time to take my next written knowledge exam, I will parrot the FAA answer. Meanwhile you...
Forum: Rotorheads
5th Jul 2020, 11:34
Replies: 28
Views: 2,313
Posted By aa777888

Sadly, there is no information in the POH that...

Sadly, there is no information in the POH that will allow that to be done.That's a required, pre-takeoff checklist item. to calculate 5 minute max. and max. continuous vs. OAT. A lot of folks tend to...
Forum: Rotorheads
5th Jul 2020, 11:11
Replies: 71
Views: 6,131
Posted By aa777888

Now that's a sensible post. Obviously, like any...

Now that's a sensible post. Obviously, like any helicopter pilot landing a helicopter, I've done this innumerable times, but I can't say I've ever taken note of the actual MP, other than to keep it...
Forum: Rotorheads
4th Jul 2020, 17:57
Replies: 71
Views: 6,131
Posted By aa777888

Yes. Ref:...

Yes. Ref: https://etd.ohiolink.edu/!etd.send_file?accession=osu1149869712&disposition=attachment

This describes the effect in the Prouty figure in much more detail.
Forum: Rotorheads
4th Jul 2020, 13:02
Replies: 71
Views: 6,131
Posted By aa777888

Absolutely, positively not. But that figure does...

Absolutely, positively not. But that figure does not show rotor vortices. Not only is entirely clear from the drawings in the figure, the damn figure is labeled "Effect of Ground Vortex on Inflow...
Forum: Rotorheads
3rd Jul 2020, 17:16
Replies: 71
Views: 6,131
Posted By aa777888

The figure out of Prouty is not relevant to a...

The figure out of Prouty is not relevant to a descent. It describes the ground vortex that rolls up in front of a helicopter travelling in ground effect.
Forum: Rotorheads
2nd Jul 2020, 17:50
Replies: 8
Views: 1,407
Posted By aa777888

Would you guys actually get nicked for airborne...

Would you guys actually get nicked for airborne use of cellular phone radios? That's got to be the most winked at rule (47 CFR 22.925) ever in the US. What self-respecting helicopter pilot hasn't...
Forum: Rotorheads
2nd Jul 2020, 17:41
Replies: 71
Views: 6,131
Posted By aa777888

OK, stipulating that this has nothing to do with...

OK, stipulating that this has nothing to do with transverse flow, nevertheless per your own statement you don't get flapback until the vibration clears. That would mean that during the condition of...
Forum: Rotorheads
1st Jul 2020, 13:45
Replies: 71
Views: 6,131
Posted By aa777888

So you will throw the baby out with the...

So you will throw the baby out with the bathwater, then? I bet you can't name one book that doesn't have either a single error or something you don't agree with. So that's a ridiculous way to imply...
Forum: Rotorheads
1st Jul 2020, 01:43
Replies: 71
Views: 6,131
Posted By aa777888

Crab: according to the FAA Helicopter Flying...

Crab: according to the FAA Helicopter Flying Handbook, page 2-23:

This vibration happens at an airspeed just below ETL on takeoff and after passing through ETL during landing. The vibration ...
Forum: Rotorheads
30th Jun 2020, 11:46
Replies: 71
Views: 6,131
Posted By aa777888

Except that when you feel that vibration you are...

Except that when you feel that vibration you are already below ETL and what you are feeling is the vibration from the transverse flow effect. That's not a good technique, and certainly not when one...
Forum: Rotorheads
30th Jun 2020, 11:42
Replies: 71
Views: 6,131
Posted By aa777888

Such an interesting discussion! Other than an...

Such an interesting discussion! Other than an evil desire to perform airshow maneuvers, I've never wanted to perform a constant speed approach to a dramatic flare at the end, much less a 180 quick...
Forum: Rotorheads
28th Jun 2020, 21:08
Replies: 17
Views: 1,545
Posted By aa777888

Never had a problem hearing the Robinson horn...

Never had a problem hearing the Robinson horn with either Bose or DC ANR. Never had a chance to try the Lightspeed stuff.
Forum: Rotorheads
28th Jun 2020, 16:31
Replies: 17
Views: 1,545
Posted By aa777888

That's what I said, I just said it differently ;)...

That's what I said, I just said it differently ;)

This is total nonsense. It's amazing that any pilot, who is supposed to have at least some rudimentary understanding of technical matters, could...
Forum: Rotorheads
28th Jun 2020, 14:22
Replies: 17
Views: 1,545
Posted By aa777888

ANR is not a bad thing. ANR is primarily for...

ANR is not a bad thing. ANR is primarily for folks who don't want to wear muffs and plugs together. It's all part of a continuum of noise reduction options. From least effective to most effective:
...
Forum: Rotorheads
22nd Jun 2020, 15:58
Replies: 116
Views: 17,151
Posted By aa777888

Most of those links did not work, but I was able...

Most of those links did not work, but I was able to search them out using the titles.

That's a great body of work. For the TLDR crowd it basically says synthetic vision is of little to no value...
Forum: Rotorheads
20th Jun 2020, 16:14
Replies: 1
Views: 1,064
Posted By aa777888

Reported power line strike: ...

Reported power line strike:

https://www.wral.com/pilot-killed-when-helicopter-crashes-in-wayne-county-field/19151000/?fbclid=IwAR2eus1gFOEGG22q1N-2_Cmin3HTcFj3dQcu8U1lRiRWDd0LLE5IKjUJxAc
Forum: Rotorheads
19th Jun 2020, 18:07
Replies: 24
Views: 7,698
Posted By aa777888

There's plenty of torque in an R22 or R44. Under...

There's plenty of torque in an R22 or R44. Under normal circumstances not so much that one has to take special precautions. But on low traction surfaces there's enough to cause issues. On ice there's...
Forum: Rotorheads
19th Jun 2020, 17:54
Replies: 24
Views: 7,698
Posted By aa777888

In case I wasn't clear enough in my post above,...

In case I wasn't clear enough in my post above, the governor is turned back on prior to pickup. It is only turned off so that the throttle can be opened more slowly above 80%. Once you achieve full...
Forum: Rotorheads
19th Jun 2020, 13:29
Replies: 24
Views: 7,698
Posted By aa777888

Not sure how that is relevant to the sh*t show...

Not sure how that is relevant to the sh*t show referred to by the original post, and this question may be worthy of its own thread, but: when operating from a slippery surface (which is not always...
Forum: Rotorheads
12th Jun 2020, 21:27
Replies: 30
Views: 7,876
Posted By aa777888

Things are pretty polite around these parts....

Things are pretty polite around these parts. That's not to say there isn't the occasional issue, but it's the exception and not the rule.
Showing results 1 to 25 of 522
 


 
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