Matronics Email Lists :: View topic - Inverted Fuel and Christen Lubrication System for RV-6 Lyco

Matronics Email Lists
Web Forum Interface to the Matronics Email Lists

Get Email Distribution Too! FAQ Search Memberlist Usergroups Register

Profile Log in to check your private messages Log in

Inverted Fuel and Christen Lubrication System for RV-6 Lyco

Matronics Email Lists Forum Index -> RV6-List

View previous topic :: View next topic

Author Message

ceengland7(at)gmail.com
Guest

Posted: Mon Sep 28, 2015 12:36 pm Post subject: Inverted Fuel and Christen Lubrication System for RV-6 Lyco

George,

       

       You might want to define your actual 'mission' before doing any       mods to the plane. I've flown lots of positive G acro in a Globe       Swift that had fuel injection, but no flop tube and no inverted       oil system. I've also flown lots of positive G acro in two       different carburated RV-4's without flop tubes or inverted       systems. As long as you're doing 'positive' maneuvers (inside       loops, rolls, barrel rolls, wingovers, etc) you don't really need       to do any mods to the plane. The only real issue would be that the       engine will almost certainly quit (but is easily restarted) if you       do 'hammerhead' turns.

       

       If you really want to do sustained inverted flight and/or       'outside' (negative G) maneuvers, then you need all the stuff that       Stein details. But, most of the serious acro guys I've talked to       do not consider an RV the best platform for 'outside' stuff       (non-symmetrical airfoil, -3G rating, etc). And if you are       inexperienced in acro, the RV may not be the best learning       platform; it's so 'clean' that when (not if) you mess up and fall       out of a maneuver, you can go way over VNE really quickly before       recovering. And even if you don't exceed VNE, you'll still be       going fast enough to risk breaking something during the recovery.       Older designs like the Citabria/Decathalon are dirty enough that       it's harder to go fast enough to over-stress them (but not       impossible, of course). 

       

       If the rules in your country require 'full' acro equipment to       legally do any acro, then you can disregard the above (except the       operational cautions...).

       

       FWIW,

       

       Charlie

       

       On 9/28/2015 11:28 AM, Stein Bruch wrote:

     

     [quote]                       <![endif]-->   <![endif]-->                

Hi             George,         

          

Having             done this on RV6’s several time ourselves, I can tell you             it’s not too bad. Here are the details:         

          

1)      Carb             – you can’t use a standard “carb” unless you get a “pressure             carb”. Preferred method is just to use fuel injection.              Remember wither you use a pressure carb or FI, you’ll need a             flop tube in one of the fuel tanks. Vans used to have a kit             for that.         

2)      The             Christen/Raven/Clone type systems are easily installed.  You             need to put a pickup in the sump, put a pickup on the vent             (accessory case), then mount the ball valve and breather can             as well as route the hoses.         

3)      I             have no idea who in Europe would do that, but I’d contact             someone in the Aerobatic community (or IAC clubs).  They             would know.         

4)      No             clue on cost…         

          

Cheers,         

Stein         

          

                                  

From:                 owner-rv6-list-server(at)matronics.com (owner-rv6-list-server(at)matronics.com)                 [mailto:owner-rv6-list-server(at)matronics.com (owner-rv6-list-server(at)matronics.com)] On                   Behalf Of George Nielsen

                 Sent: Monday, September 28, 2015 11:09 AM

                 To: rv6-list(at)matronics.com (rv6-list(at)matronics.com)

                 Subject: Inverted Fuel and Christen                 Lubrication System for RV-6 Lycoming O-320           

         

         

          

As I possess a Van's RV-6 with a Lycoming           O-320 which has never flown aerobatics and whose fuel and           lubrication systems are not adapted to this purpose I would be           grateful if you could enlighten me on the following:                    What modifications are necessary for the             carburettor for aerobatics, whether it can be modified or             needs replacement           
How can a Christen oil system be installed for             lubrication for aerobatics           
Which companies in Europe can do such             modifications or upgrading           
Approximately how much would such             modifications/upgrading cost (just in case you have any             idea, as I can ask any qualified companies myself).                  

This is sent both in the RV-6 and Lycoming           lists.

           

           Thanks.

           

           Kind regards,

           George Nielsen

           RV-6 PH-XGN

           The Hague, the Netherlands

                

     [b]

- The Matronics RV6-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV6-List

stein(at)steinair.com
Guest

Posted: Mon Sep 28, 2015 1:04 pm Post subject: Inverted Fuel and Christen Lubrication System for RV-6 Lyco

Good point…and perhaps the most valuable – the RV6 seatbelt geometry is poor for negative G work unless you put in a 2nd set of lap belts (ratcheting hookers or similar) along with a very beefy 5th/7th point crotch strap (not a simple bracket between two seat ribs).  Otherwise you’ll learn what it’s like to fly with your head smashed sideways against he canopy – no matter how tight you suck down the belts.

 

Just my 2 cents as usual!

 

Cheers,

Stein

 

From: owner-rv6-list-server(at)matronics.com [mailto:owner-rv6-list-server(at)matronics.com] On Behalf Of Charlie England

Sent: Monday, September 28, 2015 3:39 PM

To: rv6-list(at)matronics.com

Subject: Re: Inverted Fuel and Christen Lubrication System for RV-6 Lycoming O-320

 

George,



You might want to define your actual 'mission' before doing any mods to the plane. I've flown lots of positive G acro in a Globe Swift that had fuel injection, but no flop tube and no inverted oil system. I've also flown lots of positive G acro in two different carburated RV-4's without flop tubes or inverted systems. As long as you're doing 'positive' maneuvers (inside loops, rolls, barrel rolls, wingovers, etc) you don't really need to do any mods to the plane. The only real issue would be that the engine will almost certainly quit (but is easily restarted) if you do 'hammerhead' turns.



If you really want to do sustained inverted flight and/or 'outside' (negative G) maneuvers, then you need all the stuff that Stein details. But, most of the serious acro guys I've talked to do not consider an RV the best platform for 'outside' stuff (non-symmetrical airfoil, -3G rating, etc). And if you are inexperienced in acro, the RV may not be the best learning platform; it's so 'clean' that when (not if) you mess up and fall out of a maneuver, you can go way over VNE really quickly before recovering. And even if you don't exceed VNE, you'll still be going fast enough to risk breaking something during the recovery. Older designs like the Citabria/Decathalon are dirty enough that it's harder to go fast enough to over-stress them (but not impossible, of course). 



If the rules in your country require 'full' acro equipment to legally do any acro, then you can disregard the above (except the operational cautions...).



FWIW,



Charlie



 	  Quote: 	
		  

 

 

From: owner-rv6-list-server(at)matronics.com (owner-rv6-list-server(at)matronics.com) [mailto:owner-rv6-list-server(at)matronics.com (owner-rv6-list-server(at)matronics.com)] On Behalf Of George Nielsen

Sent: Monday, September 28, 2015 11:09 AM

To: rv6-list(at)matronics.com (rv6-list(at)matronics.com)

Subject: Inverted Fuel and Christen Lubrication System for RV-6 Lycoming O-320

 

As I possess a Van's RV-6 with a Lycoming O-320 which has never flown aerobatics and whose fuel and lubrication systems are not adapted to this purpose I would be grateful if you could enlighten me on the following:What modifications are necessary for the carburettor for aerobatics, whether it can be modified or needs replacement
How can a Christen oil system be installed for lubrication for aerobatics
Which companies in Europe can do such modifications or upgrading
Approximately how much would such modifications/upgrading cost (just in case you have any idea, as I can ask any qualified companies myself).

This is sent both in the RV-6 and Lycoming lists.



Thanks.



Kind regards,

George Nielsen

RV-6 PH-XGN

The Hague, the Netherlands 	


  	  Quote: 	
		   [/b] 	
http://forums.matronics.com[/url]         - List Contribution Web generous nbsp;                        -Matt Dralle, List href="http://www.matronics.com/contribution">http://www.matronics.com/c=[/b] [/quote]

  [quote][b]

- The Matronics RV6-List Email Forum -

Use the List Feature Navigator to browse the many List utilities available such as the Email Subscriptions page, Archive Search & Download, 7-Day Browse, Chat, FAQ, Photoshare, and much more:

http://www.matronics.com/Navigator?RV6-List

Display posts from previous:

	Matronics Email Lists Forum Index -> RV6-List	All times are GMT - 8 Hours
Page 1 of 1

Jump to:

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot vote in polls in this forum
You cannot attach files in this forum
You can download files in this forum