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motoadve
Joined: 23 Apr 2009
Posts: 123
Location: Seattle
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 Posted: Thu Apr 11, 2019 8:17 pm Post subject: G meter, when do you use it? |
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When and how do you take the most out of your G meter?
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mark.bitterlich(at)navy.m
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| Posted: Sat Apr 20, 2019 11:03 am Post subject: G meter, when do you use it? |
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A conversation like this usually manages to turn into a "discussion" on how to do aerobatics. And we can disagree to disagree about most of that.
These are models I have personally observed factory installed G meters.
A-4 (every model ever made)
A-6 (ever model ever made)
F-4
F-8
AV-8B
T-34 (A,B,C models)
Yak-50
Yak-52
Yak-54
SU-26
SU-29
SU-31
And a lot of them had a second recording G meter system not meant for the pilot but for the maintainers. An interesting thought here, with no G meter how do you know that you have come close to or exceeded the maximum rated G load specified by the manufacturer? Hmmm.
Another fact is that with jets, you are pulling G for a MUCH longer period of time to perform (for example) a simple loop. A G schedule including a constant G pull is taught. I've flown in A-6's and have watched it, and have done it in the Sims.
The wings did not start falling off Beech T-34's until some idiots founded a "wanna be a military dog fighter" club, and yanked well over 9 G's on the aircraft multiple MULTIPLE times until POOF .. the wing off light came on. And these were on aircraft built in the 50's. Something I have always feared is this kind of nonsense being repeated, but this time with YAK-52's for example, and yanking on them until a wing eventually fails. P.S. I talked to a man who paid the money for that experience, and his comment was that during one pull by the IP, he blacked out, when he regained sight and brain activity, he saw the recording G meter reading "9".
I think that the best way to learn anything about good aerobatics takes a coach sitting on the ground with a radio in his hand. I start loops in the YAK-50 from a minimum of 140 MPH or above and when I come out the bottom and feel my own wake turbulence, that is a plus. Still need a coach though and a better loop is from 160 mph. The YAK-50 has more energy and maintains it better than a CJ-6. But then the CJ was not a purpose built aerobatic mount. I am clearly stirring the pot here! 
All that said, I by and large agree with everything Walt said! We just have had different experiences in our lifetimes. There is no wrong or right intended.
Mark
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Ttail
Joined: 24 Jun 2013
Posts: 120
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| Posted: Sat Apr 20, 2019 1:41 pm Post subject: Re: G meter, when do you use it? |
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" An interesting thought here, with no G meter how do you know that you have come close to or exceeded the maximum rated G load specified by the manufacturer? Hmmm. "
An interesting question for CJ drivers what is the manufactures limit ? Is there a written Chinese reference ?
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pennington.construction.i
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| Posted: Sat Apr 20, 2019 1:58 pm Post subject: G meter, when do you use it? |
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Good question for Doug. Â
Doug do you know the Chinese published acro limits ?
Mark
N621CJ
On Sat, Apr 20, 2019 at 5:46 PM Ttail <ttail(at)internode.on.net (ttail(at)internode.on.net)> wrote:
| Quote: | --> Yak-List message posted by: "Ttail" <ttail(at)internode.on.net (ttail(at)internode.on.net)>
" An interesting thought here, with no G meter how do you know that you have come close to or exceeded the maximum rated G load specified by the manufacturer? Hmmm. "
An interesting question for CJ drivers what is the manufactures limit ? Is there a written Chinese reference ?
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=488828#488828
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dougsappllc(at)gmail.com
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| Posted: Mon Apr 22, 2019 10:54 am Post subject: G meter, when do you use it? |
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Some where in my notes I do have a report listing g loading, but will have to find it. Walt do you have a copy? As I recall mine is a copy of a copy of a ............... and a bit hard to read. I think Joe Howse had the original. I'll try to find mine.
Doug
On Sat, Apr 20, 2019 at 3:03 PM Mark Pennington <pennington.construction.inc.1(at)gmail.com (pennington.construction.inc.1(at)gmail.com)> wrote:
| Quote: | Good question for Doug. Â
Doug do you know the Chinese published acro limits ?
Mark
N621CJ
On Sat, Apr 20, 2019 at 5:46 PM Ttail <ttail(at)internode.on.net (ttail(at)internode.on.net)> wrote:
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Dawg
Joined: 19 May 2013
Posts: 355
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| Posted: Mon Apr 22, 2019 11:16 am Post subject: G meter, when do you use it? |
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Do it the easy way; at our age, if you pull over 4 g’s two things have happened: you screwed up the maneuver, and it hurts. (If u remain conscious)Negative G is miserable.
4 & -1. no one gets hurt. Minimum vomit 🤮 from back seater.
😎
On Apr 23, 2019, at 3:53 AM, doug sapp <dougsappllc(at)gmail.com (dougsappllc(at)gmail.com)> wrote:
| Quote: | Some where in my notes I do have a report listing g loading, but will have to find it. Walt do you have a copy? As I recall mine is a copy of a copy of a ............... and a bit hard to read. I think Joe Howse had the original. I'll try to find mine.
Doug
On Sat, Apr 20, 2019 at 3:03 PM Mark Pennington <pennington.construction.inc.1(at)gmail.com (pennington.construction.inc.1(at)gmail.com)> wrote:
| Quote: | Good question for Doug.
Doug do you know the Chinese published acro limits ?
Mark
N621CJ
On Sat, Apr 20, 2019 at 5:46 PM Ttail <ttail(at)internode.on.net (ttail(at)internode.on.net)> wrote:
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hess737(at)aol.com
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| Posted: Mon Apr 22, 2019 1:14 pm Post subject: G meter, when do you use it? |
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Bill is right. No classic aerobatics need more than 4 Gs. Or 4.5 in a jet.
Richard HessC 404-964-4885
On Apr 22, 2019, at 3:09 PM, Bill Geipel <l129bs(at)gmail.com (l129bs(at)gmail.com)> wrote:
| Quote: | Do it the easy way; at our age, if you pull over 4 g’s two things have happened: you screwed up the maneuver, and it hurts. (If u remain conscious)Negative G is miserable.
4 & -1. no one gets hurt. Minimum vomit 🤮 from back seater.
😎
On Apr 23, 2019, at 3:53 AM, doug sapp <dougsappllc(at)gmail.com (dougsappllc(at)gmail.com)> wrote:
| Quote: | Some where in my notes I do have a report listing g loading, but will have to find it. Walt do you have a copy? As I recall mine is a copy of a copy of a ............... and a bit hard to read. I think Joe Howse had the original. I'll try to find mine.
Doug
On Sat, Apr 20, 2019 at 3:03 PM Mark Pennington <pennington.construction.inc.1(at)gmail.com (pennington.construction.inc.1(at)gmail.com)> wrote:
| Quote: | Good question for Doug.
Doug do you know the Chinese published acro limits ?
Mark
N621CJ
On Sat, Apr 20, 2019 at 5:46 PM Ttail <ttail(at)internode.on.net (ttail(at)internode.on.net)> wrote:
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wlannon(at)shaw.ca
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| Posted: Mon Apr 22, 2019 6:53 pm Post subject: G meter, when do you use it? |
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I do but it’s in the hangar. call me tomorrow.
From: doug sapp (dougsappllc(at)gmail.com)
Sent: Monday, April 22, 2019 11:53 AM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: Re: Re: G meter, when do you use it?
Some where in my notes I do have a report listing g loading, but will have to find it. Walt do you have a copy? As I recall mine is a copy of a copy of a ............... and a bit hard to read. I think Joe Howse had the original. I'll try to find mine.
Doug
On Sat, Apr 20, 2019 at 3:03 PM Mark Pennington <pennington.construction.inc.1(at)gmail.com (pennington.construction.inc.1(at)gmail.com)> wrote:
| Quote: | Good question for Doug.
Doug do you know the Chinese published acro limits ?
Mark
N621CJ
On Sat, Apr 20, 2019 at 5:46 PM Ttail <ttail(at)internode.on.net (ttail(at)internode.on.net)> wrote:
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 Virus-free. www.avast.com [url=#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2] [/url]
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wlannon(at)shaw.ca
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| Posted: Mon Apr 22, 2019 6:56 pm Post subject: G meter, when do you use it? |
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I do but it’s in the hangar. Tomorrow.
From: doug sapp (dougsappllc(at)gmail.com)
Sent: Monday, April 22, 2019 11:53 AM
To: yak-list(at)matronics.com (yak-list(at)matronics.com)
Subject: Re: Re: G meter, when do you use it?
Some where in my notes I do have a report listing g loading, but will have to find it. Walt do you have a copy? As I recall mine is a copy of a copy of a ............... and a bit hard to read. I think Joe Howse had the original. I'll try to find mine.
Doug
On Sat, Apr 20, 2019 at 3:03 PM Mark Pennington <pennington.construction.inc.1(at)gmail.com (pennington.construction.inc.1(at)gmail.com)> wrote:
| Quote: | Good question for Doug.
Doug do you know the Chinese published acro limits ?
Mark
N621CJ
On Sat, Apr 20, 2019 at 5:46 PM Ttail <ttail(at)internode.on.net (ttail(at)internode.on.net)> wrote:
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Virus-free. www.avast.com [url=#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2] [/url]
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