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1906

Joined: 30 Nov 2018
Posts: 58

Posted: Mon May 31, 2021 7:40 am Post subject: Compressor charging

I have flown behind two M14Ps recently and the pressure replenishment was different. One of them with less than 200 hours, the pressure system would charge during idle (40% RPM). On the other, with 620 hours, the pressure seemed to only charge in flight. Is this normal or will the compressor need replacement soon?

richard.goode(at)russiana
Guest

Posted: Mon May 31, 2021 8:33 am Post subject: Compressor charging

In our experience, the compressor is the weakest link in the M 14 engine, and many become much less effective in less than 500 hours. This is not helped since some, when overhauling the compressors simply put in new sets of piston rings rather than new cylinders which we feel are often required. This is an expensive exercise; cylinders and indeed new pistons can be difficult to find. But a good compressor will certainly charge at 40%, and I can totally understand that a worn compressor needs to be turning at higher rpm â€“ i.e. in flight â€“ to charge.



Another very important point is that the compressor is working very hard simply because it is charging the system until the release-valve blows off; pressure reduces and then it starts working again. It is so much better to modify your aircraft and bring the water drain valve from the firewall into the cockpit with the water drain exit going through the floor of the aircraft. In this way you start the engine with the water drain firmly shut; after take off, the pressure builds up to its normal maximum, then you open the water drain and the compressor, although still operating is working totally off load and under dramatically less strain and will last far longer!

RICHARD GOODE AEROBATICS

Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK

Tel:  +44 (0)1544 340120   Fax:  +44 (0)1544 340129

e-mail: richard.goode(at)russianaeros.com

www.russianaeros.com

WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES

In partnership with Aerometal Kft, Hungary.



--

1906

Joined: 30 Nov 2018
Posts: 58

Posted: Mon May 31, 2021 8:57 am Post subject: Re: Compressor charging

Thanks, Richard. These both have the compressor bypass (water drain as you call it) valve fitted already, but good info to know about the 500 hours.

richard.goode(at)russiana
Guest

Posted: Tue Jun 01, 2021 5:51 am Post subject: Compressor charging

Of course, all Sukhoi and Yak have the water drain which collects water from the air that has been compressed. In passing far too many Western pilots do not drain this at least every day if not every flight and that is why they get corrosion in their pneumatic systems! But the point I was making is that it is an extremely good idea to move the water drain tap into the cockpit rather than on the firewall. This means that the drain can be opened when, after takeoff, pressure is up to normal maximum and this then leaves the compressor to work without any load which will dramatically extend its life. Of course you do need to remember to shut the tap before landing!

RICHARD GOODE AEROBATICS

Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK

Tel:  +44 (0)1544 340120   Fax:  +44 (0)1544 340129

e-mail: richard.goode(at)russianaeros.com

www.russianaeros.com

WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES

In partnership with Aerometal Kft, Hungary.



--

dsavarese0812(at)bellsout
Guest

Posted: Tue Jun 01, 2021 6:23 am Post subject: Compressor charging

While I agree 100% with the rationale of opening the water drain during flight, I am not a proponent of them because I have seen far too many push/pull cables connected to the water drain NOT able to fully close the valve on the water drain during flight after they've been opened to relieve the work load of the compressor.  That scenario makes it impossible to recharge the air system during flight.  In fact, I would hazard a guess, of the ones that I've looked at, 50% of them are questionable about closing during flight once it's been opened.  And all it takes is a very minute opening (read not fully closed) to cause the compressor not to recharge the air system.

Just my 2 cents.

Dennis



                  

                                                                    On Tuesday, June 1, 2021, 9:53:19 AM EDT, Richard Goode <richard.goode(at)russianaeros.com> wrote:                 

                 



                 



                 --> Yak-List message posted by: "Richard Goode" <richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)>



Of course, all Sukhoi and Yak have the water drain which collects water from the air that has been compressed. In passing far too many Western pilots do not drain this at least every day if not every flight and that is why they get corrosion in their pneumatic systems! But the point I was making is that it is an extremely good idea to move the water drain tap into the cockpit rather than on the firewall. This means that the drain can be opened when, after takeoff, pressure is up to normal maximum and this then leaves the compressor to work without any load which will dramatically extend its life. Of course you do need to remember to shut the tap before landing!



RICHARD GOODE AEROBATICS



Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK



Tel:  +44 (0)1544 340120   Fax:  +44 (0)1544 340129



e-mail: richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)



www.russianaeros.com



WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES



In partnership with Aerometal Kft, Hungary.



--

richard.goode(at)russiana
Guest

Posted: Tue Jun 01, 2021 6:58 am Post subject: Compressor charging

I am obviously not making myself clear! I certainly would not recommend a system of pushrods or cables going through the firewall to turn the water drain tap. What we do is to move the entire water drain tap into the cockpit, typically just below the pilot seat so the tap can easily be opened or closed from the seat. Then the water drain â€“ obviously a small metal tube â€“ extends through the floor of the aircraft. Like this, the opening and shutting of the tap is totally positive as it would be on the firewall.

 

 

RICHARD GOODE AEROBATICS

Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK

Tel:  +44 (0)1544 340120   Fax:  +44 (0)1544 340129

e-mail: richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)

www.russianaeros.com

WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES

In partnership with Aerometal Kft, Hungary.



 

From: owner-yak-list-server(at)matronics.com <owner-yak-list-server(at)matronics.com> On Behalf Of A. Dennis Savarese

Sent: 01 June 2021 15:22

To: yak-list(at)matronics.com

Subject: Re: Re: Compressor charging

 

While I agree 100% with the rationale of opening the water drain during flight, I am not a proponent of them because I have seen far too many push/pull cables connected to the water drain NOT able to fully close the valve on the water drain during flight after they've been opened to relieve the work load of the compressor.  That scenario makes it impossible to recharge the air system during flight.  In fact, I would hazard a guess, of the ones that I've looked at, 50% of them are questionable about closing during flight once it's been opened.  And all it takes is a very minute opening (read not fully closed) to cause the compressor not to recharge the air system.



 



Just my 2 cents.



Dennis



 

On Tuesday, June 1, 2021, 9:53:19 AM EDT, Richard Goode <richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)> wrote: 



 



 



--> Yak-List message posted by: "Richard Goode" <richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)>



 



Of course, all Sukhoi and Yak have the water drain which collects water from the air that has been compressed. In passing far too many Western pilots do not drain this at least every day if not every flight and that is why they get corrosion in their pneumatic systems! But the point I was making is that it is an extremely good idea to move the water drain tap into the cockpit rather than on the firewall. This means that the drain can be opened when, after takeoff, pressure is up to normal maximum and this then leaves the compressor to work without any load which will dramatically extend its life. Of course you do need to remember to shut the tap before landing!



 



 



RICHARD GOODE AEROBATICS



Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK



Tel:  +44 (0)1544 340120  Fax:  +44 (0)1544 340129



e-mail: richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)



www.russianaeros.com



WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES



In partnership with Aerometal Kft, Hungary.



 



--

kiwi679

Joined: 08 Jul 2011
Posts: 20
Location: Netherlands

Posted: Tue Jun 01, 2021 8:28 am Post subject: Compressor charging

I had the system Richard describes in my Sukhoi. Worked like a charm.Iâ€™m going to do the same with my Yak.

rgds Stephen[quote]On 1 Jun 2021, at 16:58, Richard Goode <richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)> wrote:

I am obviously not making myself clear! I certainly would not recommend a system of pushrods or cables going through the firewall to turn the water drain tap. What we do is to move the entire water drain tap into the cockpit, typically just below the pilot seat so the tap can easily be opened or closed from the seat. Then the water drain â€“ obviously a small metal tube â€“ extends through the floor of the aircraft. Like this, the opening and shutting of the tap is totally positive as it would be on the firewall.

 

 

RICHARD GOODE AEROBATICS

Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK

Tel:  +44 (0)1544 340120   Fax:  +44 (0)1544 340129

e-mail: richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)

www.russianaeros.com

WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES

In partnership with Aerometal Kft, Hungary.



 

From: owner-yak-list-server(at)matronics.com (owner-yak-list-server(at)matronics.com) <owner-yak-list-server(at)matronics.com (owner-yak-list-server(at)matronics.com)> On Behalf Of A. Dennis SavareseSent: 01 June 2021 15:22To: yak-list(at)matronics.com (yak-list(at)matronics.com)Subject: Re: Re: Compressor charging

 

While I agree 100% with the rationale of opening the water drain during flight, I am not a proponent of them because I have seen far too many push/pull cables connected to the water drain NOT able to fully close the valve on the water drain during flight after they've been opened to relieve the work load of the compressor.  That scenario makes it impossible to recharge the air system during flight.  In fact, I would hazard a guess, of the ones that I've looked at, 50% of them are questionable about closing during flight once it's been opened.  And all it takes is a very minute opening (read not fully closed) to cause the compressor not to recharge the air system.



 



Just my 2 cents.



Dennis



 

On Tuesday, June 1, 2021, 9:53:19 AM EDT, Richard Goode <richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)> wrote: 



 



 



--> Yak-List message posted by: "Richard Goode" <richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)>



 



Of course, all Sukhoi and Yak have the water drain which collects water from the air that has been compressed. In passing far too many Western pilots do not drain this at least every day if not every flight and that is why they get corrosion in their pneumatic systems! But the point I was making is that it is an extremely good idea to move the water drain tap into the cockpit rather than on the firewall. This means that the drain can be opened when, after takeoff, pressure is up to normal maximum and this then leaves the compressor to work without any load which will dramatically extend its life. Of course you do need to remember to shut the tap before landing!



 



 



RICHARD GOODE AEROBATICS



Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK



Tel:  +44 (0)1544 340120  Fax:  +44 (0)1544 340129



e-mail: richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)



www.russianaeros.com



WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES



In partnership with Aerometal Kft, Hungary.



 



--

_________________
regards Stephen

dsavarese0812(at)bellsout
Guest

Posted: Tue Jun 01, 2021 8:45 am Post subject: Compressor charging

Now THAT I think is a great idea. I would definitely support that. 



And no, that was not clear to me in your first post. 

Dennis



Sent from my iPhone



[quote]On Jun 1, 2021, at 11:00 AM, Richard Goode <richard.goode(at)russianaeros.com> wrote:



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I am obviously not making myself clear! I certainly would not recommend a system of pushrods or cables going through the firewall to turn the water drain tap. What we do is to move the entire water drain tap into the cockpit, typically just below the pilot seat so the tap can easily be opened or closed from the seat. Then the water drain â€“ obviously a small metal tube â€“ extends through the floor of the aircraft. Like this, the opening and shutting of the tap is totally positive as it would be on the firewall.

 

 

RICHARD GOODE AEROBATICS

Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK

Tel:  +44 (0)1544 340120   Fax:  +44 (0)1544 340129

e-mail: richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)

www.russianaeros.com

WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES

In partnership with Aerometal Kft, Hungary.



 

From: owner-yak-list-server(at)matronics.com <owner-yak-list-server(at)matronics.com> On Behalf Of A. Dennis Savarese

Sent: 01 June 2021 15:22

To: yak-list(at)matronics.com

Subject: Re: Re: Compressor charging

 

While I agree 100% with the rationale of opening the water drain during flight, I am not a proponent of them because I have seen far too many push/pull cables connected to the water drain NOT able to fully close the valve on the water drain during flight after they've been opened to relieve the work load of the compressor.  That scenario makes it impossible to recharge the air system during flight.  In fact, I would hazard a guess, of the ones that I've looked at, 50% of them are questionable about closing during flight once it's been opened.  And all it takes is a very minute opening (read not fully closed) to cause the compressor not to recharge the air system.



 



Just my 2 cents.



Dennis



 

On Tuesday, June 1, 2021, 9:53:19 AM EDT, Richard Goode <richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)> wrote: 



 



 



--> Yak-List message posted by: "Richard Goode" <richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)>



 



Of course, all Sukhoi and Yak have the water drain which collects water from the air that has been compressed. In passing far too many Western pilots do not drain this at least every day if not every flight and that is why they get corrosion in their pneumatic systems! But the point I was making is that it is an extremely good idea to move the water drain tap into the cockpit rather than on the firewall. This means that the drain can be opened when, after takeoff, pressure is up to normal maximum and this then leaves the compressor to work without any load which will dramatically extend its life. Of course you do need to remember to shut the tap before landing!



 



 



RICHARD GOODE AEROBATICS



Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK



Tel:  +44 (0)1544 340120  Fax:  +44 (0)1544 340129



e-mail: richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)



www.russianaeros.com



WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES



In partnership with Aerometal Kft, Hungary.



 



--

dsavarese0812(at)bellsout
Guest

Posted: Tue Jun 01, 2021 8:45 am Post subject: Compressor charging

Iâ€™ll bet it did. Mounted as Richard described would be a great option. 

Dennis



Sent from my iPhone



[quote] On Jun 1, 2021, at 12:44 PM, Anthony Savarese <dsavarese0812(at)bellsouth.net> wrote:

 

 ï»¿Now THAT I think is a great idea. I would definitely support that. 

 

 And no, that was not clear to me in your first post. 

 Dennis

 

 Sent from my iPhone

 

>> On Jun 1, 2021, at 11:00 AM, Richard Goode <richard.goode(at)russianaeros.com> wrote:

>> 

> ï»¿

> I am obviously not making myself clear! I certainly would not recommend a system of pushrods or cables going through the firewall to turn the water drain tap. What we do is to move the entire water drain tap into the cockpit, typically just below the pilot seat so the tap can easily be opened or closed from the seat. Then the water drain â€“ obviously a small metal tube â€“ extends through the floor of the aircraft. Like this, the opening and shutting of the tap is totally positive as it would be on the firewall

stephen.hayne

Joined: 01 Nov 2013
Posts: 59
Location: United States

Posted: Sun Jul 11, 2021 6:57 am Post subject: Re: Compressor charging

 	  richard.goode(at)russiana wrote: 	
		  I am obviously not making myself clear! I certainly would not recommend a system of pushrods or cables going through the firewall to turn the water drain tap. What we do is to move the entire water drain tap into the cockpit, typically just below the pilot seat so the tap can easily be opened or closed from the seat. Then the water drain â€“ obviously a small metal tube â€“ extends through the floor of the aircraft. Like this, the opening and shutting of the tap is totally positive as it would be on the firewall.

-- 	


After chatting with Richard a year or so ago, I did exactly this, using SS paintball (yes, I know, from China) high pressure lines, and a swagelok valve in the cockpit.  It is awesome to release the snot from there, and to unload the compressor.  However, I have now ONCE forgotten to close the valve upon entering the pattern.  So, one has to change their flow/checklist... I also only open the valve if going on a longer flight, not just some local work.

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_________________
-
Stephen Hayne, Cyber Security Consultant, Professor Emeritus (retired)
443LM Nanchang CJA
http://selfsynchronize.com/hayne/plane/cj6.asp

richard.goode(at)russiana
Guest

Posted: Sun Jul 11, 2021 8:41 am Post subject: Compressor charging

Yes, over the years we've installed the systems on many Sukhoi and Yak; it is (almost) full proof, and really does extend the life of the compressor, which, in my view, is the weakest link in the M 14 engine!



RICHARD GOODE AEROBATICS

Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK

Tel:  +44 (0)1544 340120   Fax:  +44 (0)1544 340129

e-mail: richard.goode(at)russianaeros.com

www.russianaeros.com

WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES

In partnership with Aerometal Kft, Hungary.



--

easy_driver

Joined: 25 Jul 2020
Posts: 13
Location: Alexandria, VA

Posted: Sun Jul 11, 2021 11:53 am Post subject: Re: Compressor charging

there is a reason why sump bottles are located near compressor heads. by moving it away you turn the air line into a sump.



instead of reinventing a wheel - put back AD-50 charge controller. it is on the original air system diagram.

Ttail

Joined: 24 Jun 2013
Posts: 118

Posted: Sun Jul 11, 2021 3:04 pm Post subject: Re: Compressor charging

Stephen, when you action your snot valve in the cockpit, what do you see on your Main Air gauge ... I mean what happens ?

_________________
Sean Trestrail
ttail[at]internode.on.net

Last edited by Ttail on Sun Jul 11, 2021 7:44 pm; edited 1 time in total

markbitterlich(at)embarqm
Guest

Posted: Sun Jul 11, 2021 6:41 pm Post subject: Compressor charging

Could you please explain that in a little more detail please?  The 3 feet of air line before the standard sump is not a sump. But if  it is 6 feet long it becomes the sump?



-------- Original message --------

From: easy_driver <thatmail(at)yahoo.com> 

Date: 7/11/21  4:18 PM  (GMT-05:00) 

To: yak-list(at)matronics.com 

Subject: Yak-List: Re: Compressor charging 



--> Yak-List message posted by: "easy_driver" <thatmail(at)yahoo.com>there is a reason why sump bottles are located near compressor heads. by moving it away you turn the air line into a sump.instead of reinventing a wheel - put back AD-50 charge controller. it is on the original air system diagram.

easy_driver

Joined: 25 Jul 2020
Posts: 13
Location: Alexandria, VA

Posted: Sun Jul 11, 2021 7:07 pm Post subject: Re: Compressor charging

i would guess it's longer than 6 feet. and i would dare to postulate that air moving through small diameter thin-walled tube would loose its temperature. ( design of a heat exchanger )



but if someone wants to experiment - who am i to judge...



 	  markbitterlich(at)embarqm wrote: 	
		  Could you please explain that in a little more detail please?ï¿½ The 3 feet of air line before the standard sump is not a sump. But ifï¿½ it is 6 feet long it becomes the sump?



-------- Original message --------

From: easy_driver <thatmail> 

Date: 7/11/21  4:18 PM  (GMT-05:00) 

To: yak-list(at)matronics.com 

Subject: Yak-List: Re: Compressor charging 



--> Yak-List message posted by: "easy_driver" <thatmail>there is a reason why sump bottles are located near compressor heads. by moving it away you turn the air line into a sump.instead of reinventing a wheel - put back AD-50 charge controller. it is on the original air system diagram.

kiwi679

Joined: 08 Jul 2011
Posts: 20
Location: Netherlands

Posted: Sun Jul 11, 2021 10:20 pm Post subject: Compressor charging

Hi Sean,



Nothing. The Sukhoi only had one small bottle to start the engine. 



regards

Stephen



 	  Quote: 	
		   On 12 Jul 2021, at 01:04, Ttail <ttail(at)internode.on.net> wrote:

 

 

 

 Stephen, when you action your snot valve in the cockpit in valve what do you see on your Main Air guage ... I mean what happens ?

 

 --------

 Sean Trestrail

 ttail[at]internode.on.net

 

 

 

 

 Read this topic online here:

 

 http://forums.matronics.com/viewtopic.php?p=502797#502797

_________________
regards Stephen

markbitterlich(at)embarqm
Guest

Posted: Sun Jul 11, 2021 11:12 pm Post subject: Compressor charging

Well,  I suppose it stopped being an experiment when it was tried and worked on a number of aircraft. 



The interesting thing is that there is a very low volume of air moving through the tube and if the snot valve is left open after the bottle fills, the air charge is vented out a drain on every output pulse taking condensed water and light oil with it. It also saves wear and tear on the compressor and pressure relief valve. 

The AD-50 is not typically available, weighs a lot more and was not typically used on any of these aircraft except the 18T. It is a nice piece of equipment though, I have one but decided not to install it in my 50. 

Another good method is to use an electrically controlled dump valve, spring loaded closed. But the cheapest remains Richard's method.

Mark

-------- Original message --------

From: easy_driver <thatmail(at)yahoo.com> 

Date: 7/11/21  11:11 PM  (GMT-05:00) 

To: yak-list(at)matronics.com 

Subject: Yak-List: Re: Compressor charging 



--> Yak-List message posted by: "easy_driver" <thatmail(at)yahoo.com>



i would guess it's longer than 6 feet. and i would dare to postulate that air moving through small diameter thin-walled tube would loose its temperature. ( design of a heat exchanger )



but if someone wants to experiment - who am i to judge...

markbitterlich(at)embarqm wrote:

 	  Quote: 	
		   Could you please explain that in a little more detail please?Ã¯Â¿Â½ The 3 feet of air line before the standard sump is not a sump. But ifÃ¯Â¿Â½ it is 6 feet long it becomes the sump?

 

 -------- Original message --------

 From: easy_driver  

 Date: 7/11/21  4:18 PM  (GMT-05:00) 

 To: yak-list(at)matronics.com 

 Subject: Yak-List: Re: Compressor charging 

 

 

 

 --> Yak-List message posted by: "easy_driver" there is a reason why sump bottles are located near compressor heads. by moving it away you turn the air line into a sump.instead of reinventing a wheel - put back AD-50 charge controller. it is on the original air system diagram.


	






Read this topic online here:



http://forums.matronics.com/viewtopic.php?p=502799#502799

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richard.goode(at)russiana
Guest

Posted: Sun Jul 11, 2021 11:28 pm Post subject: Compressor charging

There is no reason that the main air pressure would change at all. The system has a non-return valve between the compressor and the tank, and the gauge is measuring tank pressure. So when you release the water-drain, all you're doing is to let out the water and the small amount of air that is in the drain system.



RICHARD GOODE AEROBATICS

Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK

Tel:  +44 (0)1544 340120   Fax:  +44 (0)1544 340129

e-mail: richard.goode(at)russianaeros.com

www.russianaeros.com

WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES

In partnership with Aerometal Kft, Hungary.



--

kiwi679

Joined: 08 Jul 2011
Posts: 20
Location: Netherlands

Posted: Mon Jul 12, 2021 12:01 am Post subject: Compressor charging

As usual Richard is correct. There was no change.

Iâ€™ve sold the Sukhoi now so canâ€™t give you a detailed description of the set up. But it worked perfectly.



[quote] On 12 Jul 2021, at 09:28, Richard Goode <richard.goode(at)russianaeros.com> wrote:

 

 

 

 There is no reason that the main air pressure would change at all. The system has a non-return valve between the compressor and the tank, and the gauge is measuring tank pressure. So when you release the water-drain, all you're doing is to let out the water and the small amount of air that is in the drain system.

 

 RICHARD GOODE AEROBATICS

 Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK

 Tel:  +44 (0)1544 340120   Fax:  +44 (0)1544 340129

 e-mail: richard.goode(at)russianaeros.com

 www.russianaeros.com

 WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES

 In partnership with Aerometal Kft, Hungary.

 

 --

_________________
regards Stephen

dsavarese0812(at)bellsout
Guest

Posted: Mon Jul 12, 2021 12:44 am Post subject: Compressor charging

What Richard is telling you is that the drain works exactly the same as the original drain.  It (the drain) is just relocated to a more convenient location.

Dennis



                  

                                                                    On Monday, July 12, 2021, 3:30:20 AM EDT, Richard Goode <richard.goode(at)russianaeros.com> wrote:                 

                 



                 



                 --> Yak-List message posted by: "Richard Goode" <richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)>



There is no reason that the main air pressure would change at all. The system has a non-return valve between the compressor and the tank, and the gauge is measuring tank pressure. So when you release the water-drain, all you're doing is to let out the water and the small amount of air that is in the drain system.



RICHARD GOODE AEROBATICS



Rhodds Farm, Lyonshall, Hereford, HR5 3LW, UK



Tel:  +44 (0)1544 340120   Fax:  +44 (0)1544 340129



e-mail: richard.goode(at)russianaeros.com (richard.goode(at)russianaeros.com)



www.russianaeros.com



WORLD LEADERS IN RUSSIAN SPORTING AIRCRAFT & ENGINES



In partnership with Aerometal Kft, Hungary.



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