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Forum: Rotorheads
17th Oct 2021, 13:58
Replies: 24
Views: 1,459
Posted By aa777888

Ned, Many thanks in advance once again! :) ...

Ned,

Many thanks in advance once again! :)

This past year has been an odd one, indeed. I retired from my full time engineering job in June. Now able to devote myself full time to flying there's...
Forum: Rotorheads
16th Oct 2021, 17:37
Replies: 29
Views: 4,894
Posted By aa777888

Assuming the original poster is at all serious,...

Assuming the original poster is at all serious, this brings to mind a saying common in the medical profession: "When you hear hoofbeats think horses not zebras."

As the OP has hopefully learned...
Forum: Rotorheads
30th Sep 2021, 22:24
Replies: 68
Views: 10,746
Posted By aa777888

Far be it for me to agree with crab, because you...

Far be it for me to agree with crab, because you know I'm Mr. Live Free & Die, fly a single, fly a Robinson, we are all big boys and girls, etc., etc., but in this case I have to say it doesn't make...
Forum: Rotorheads
21st Sep 2021, 21:26
Replies: 145
Views: 63,391
Posted By aa777888

There's a sucker born every minute! Better cash...

There's a sucker born every minute! Better cash out early before that stock tanks!
Forum: Rotorheads
21st Sep 2021, 20:07
Replies: 7
Views: 1,578
Posted By aa777888

Truly amazing they got it so right that it has...

Truly amazing they got it so right that it has stood the test of time for so long without being replaced by something better.
Forum: Rotorheads
20th Sep 2021, 14:12
Replies: 68
Views: 10,746
Posted By aa777888

They've done the maths, all right. Because at the...

They've done the maths, all right. Because at the end of the day it all comes down to cost of insurance. That's what makes it affordable/unaffordable. And underwriters are very good at math. Very,...
Forum: Rotorheads
19th Sep 2021, 12:23
Replies: 129
Views: 41,127
Posted By aa777888

Wow, that's just insane! Does not the Australian...

Wow, that's just insane! Does not the Australian government set standards for 100LL? It would either appear not, or that any standards that may exist are not sufficiently strict.

From the 21 Oct...
Forum: Rotorheads
16th Sep 2021, 18:02
Replies: 21
Views: 2,390
Posted By aa777888

AFAIK, you are probably not going to find the...

AFAIK, you are probably not going to find the answer in the FARs. Any requirements for "must use" would be covered under the Ops, M or T-specs, or LOA, associated with the particular operation. I.e.,...
Forum: Rotorheads
15th Sep 2021, 12:10
Replies: 68
Views: 10,746
Posted By aa777888

He is using a so-called "360 camera" on the long...

He is using a so-called "360 camera" on the long line, and he mentions this at the beginning of the video. There are quite a few "action cam's" on the market now that, by using two 180 degree...
Forum: Rotorheads
15th Sep 2021, 12:00
Replies: 68
Views: 10,746
Posted By aa777888

He's not sitting on his thumb, he's resting his...

He's not sitting on his thumb, he's resting his thumb on the edge of the seat. This can allow one to have more precise control of the collective position by using the fine motor skills in one's hand...
Forum: Rotorheads
6th Sep 2021, 17:53
Replies: 5
Views: 1,207
Posted By aa777888

For low impedance mic-to-high impedance aircraft,...

For low impedance mic-to-high impedance aircraft, another option would be the impedance adapter from Pilot Communications USA. They have them in various connectorizations. Example:...
Forum: Rotorheads
4th Sep 2021, 10:07
Replies: 53
Views: 21,774
Posted By aa777888

Maybe you mean Australians? Because Duck's...

Maybe you mean Australians? Because Duck's profile says he's from "Darwin and PNG".

Most Americans I know have a very fine understanding of sarcasm :ok:
Forum: Rotorheads
29th Aug 2021, 20:04
Replies: 6
Views: 2,411
Posted By aa777888

Robinsons do not have separate blade erosion...

Robinsons do not have separate blade erosion strips.

If there is an errant piece of reflective tape on the main rotor blade from the last track and balance then sometimes it can make a whistling...
Forum: Rotorheads
18th Jul 2021, 16:05
Replies: 156
Views: 34,559
Posted By aa777888

Interesting that you posted in this thread, and...

Interesting that you posted in this thread, and after so long, H&H. Really a subject worthy of it's own topic. And of course a subject that has been discussed a very great deal in this forum.

Why...
Forum: Rotorheads
11th Jul 2021, 23:11
Replies: 8
Views: 2,047
Posted By aa777888

Considering it takes more than a minute to cool...

Considering it takes more than a minute to cool down after landing at 70% engine rpm even on a very cold day with no load at all, I seriously doubt it would be a problem in flight.
Forum: Rotorheads
27th Jun 2021, 11:42
Replies: 113
Views: 27,072
Posted By aa777888

Probably most have seen this paper already, but...

Probably most have seen this paper already, but for the few who may not have it has some relevance: ERF2019-0017...
Forum: Rotorheads
25th Jun 2021, 18:43
Replies: 27
Views: 6,901
Posted By aa777888

Wow, that was sudden? Didn't he just recently ask...

Wow, that was sudden? Didn't he just recently ask for inputs on a new book?
Forum: Rotorheads
25th Jun 2021, 18:40
Replies: 9
Views: 1,391
Posted By aa777888

:ok: ................

:ok:
................
Forum: Rotorheads
25th Jun 2021, 15:39
Replies: 9
Views: 1,391
Posted By aa777888

Is that information not specified by the type...

Is that information not specified by the type certificate? If not then I apologize. Nothing has changed so no need to be confused.
Forum: Rotorheads
25th Jun 2021, 14:01
Replies: 9
Views: 1,391
Posted By aa777888

Good summary, wrench1. It was a rather lengthy...

Good summary, wrench1. It was a rather lengthy thread!

One additional point of clarification: even under the least rigorous Part 91 requirements, calendar life limited components in the Type...
Forum: Rotorheads
25th Jun 2021, 12:42
Replies: 9
Views: 1,391
Posted By aa777888

The US requirements are thoroughly discussed in...

The US requirements are thoroughly discussed in this thread:

https://www.pprune.org/rotorheads/626966-r44-12-year-inspection.html
Forum: Rotorheads
23rd Jun 2021, 11:36
Replies: 10
Views: 1,367
Posted By aa777888

Interesting. Barely a dB difference between them....

Interesting. Barely a dB difference between them. Form follows function follows regulation, I guess. Don't forget it takes a 10dB difference in SPL to sound twice (or half) as loud to human ears.
Forum: Rotorheads
21st Jun 2021, 20:23
Replies: 113
Views: 27,072
Posted By aa777888

One wonders how many hours is appropriate to...

One wonders how many hours is appropriate to achieve reliably adequate skill levels under all conditions when making a "fenestron transition".

With all my time in the R22 and R44, when I jumped...
Forum: Rotorheads
21st Jun 2021, 17:49
Replies: 113
Views: 27,072
Posted By aa777888

Also interesting is how all of the incidents...

Also interesting is how all of the incidents cited in the appendix involved fenestrons.
Forum: Rotorheads
15th Jun 2021, 21:12
Replies: 379
Views: 91,038
Posted By aa777888

For power (not voltage) the conversion from...

For power (not voltage) the conversion from decibels (dB) to linear is y = 10^(x/10) where x is the value in dB. Thus for x = 15dB then y = 31.6. So, no, not even close to "100x quieter".

To go...
Showing results 1 to 25 of 794
 


 
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