VansAirForceForums  
Home > VansAirForceForums

-POSTING RULES
-Advertise in here!
- Today's Posts | Insert Pics

Keep VAF Going
Donate methods

Point your
camera app here
to donate fast.

  #21  
Old 01-02-2019, 10:12 AM
Mark33's Avatar
Mark33 Mark33 is offline
 
Join Date: May 2010
Location: Baton Rouge, La.
Posts: 757
Default

Roger that! Has anyone built a 12 (EAB) with an Edge Performance 912 EFII/turbo? I?ll bet that would be one heck of a performer!! When I?m finished with my current -7 project I?m planning on building a Rans S-7 with the EP-912 EFII/turbo setup.

Mark

Last edited by Mark33 : 01-02-2019 at 12:23 PM. Reason: Corrections in category
Reply With Quote
  #22  
Old 01-02-2019, 10:16 AM
Mel's Avatar
Mel Mel is online now
 
Join Date: Mar 2005
Location: Dallas area
Posts: 11,226
Default

Quote:
Originally Posted by Mark33 View Post
Roger that! Has anyone built a 12 (E-LSA) with an Edge Performance 912 EFII/turbo? I?ll bet that would be one heck of a performer!! When I?m finished with my current -7 project I?m planning on building a Rans S-7 with the EP-912 EFII/turbo setup.
Mark
Correct me if I'm wrong, but I don't believe the RV-12 E-LSA kit is available with a turbo. That would have to be built as an EAB.
__________________
Mel Asberry, DAR since the last century. Over 1,000 certifications accomplished. Discount for Veterans, Law Enforcement, Fire Fighters.
EAA Flight Advisor/Tech Counselor, Friend of the RV-1
Recipient of Tony Bingelis Award and Wright Brothers Master Pilot Award
USAF Vet, High School E-LSA Project Mentor.
RV-6 Flying since 1993 (sold)
<rvmel(at)icloud.com>
Reply With Quote
  #23  
Old 01-02-2019, 11:12 AM
David Paule David Paule is offline
 
Join Date: Dec 2009
Location: Boulder, CO
Posts: 5,070
Default

Quote:
Originally Posted by rvbuilder2002 View Post
....I have never seen a screw type hose clamp loosen....
Scott, I've seen a few loosen. I now safety wire all of them.

However, Ive got to say that the only ones that loosened were on the engine manifold or otherwise attached to an engine. Haven't seen any loosen elsewhere, yet.

Key word, "yet." Safety wire them.

And if the airplane doesn't have it designed in, add a drain hole to the belly so that when fuel does leak, at least it'll drain out. Something I still need to do for my RV-3B under construction.

Dave
Reply With Quote
  #24  
Old 01-02-2019, 12:21 PM
Mark33's Avatar
Mark33 Mark33 is offline
 
Join Date: May 2010
Location: Baton Rouge, La.
Posts: 757
Default

Quote:
Originally Posted by Mel View Post
Correct me if I'm wrong, but I don't believe the RV-12 E-LSA kit is available with a turbo. That would have to be built as an EAB.
Sorry Mel, you?re correct. So please insert EAB in the place of E-LSA. As a matter of fact, I?ll edit my post.

Mark
Reply With Quote
  #25  
Old 01-02-2019, 01:23 PM
rvbuilder2002's Avatar
rvbuilder2002 rvbuilder2002 is offline
 
Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,667
Default

Quote:
Originally Posted by David Paule View Post
Scott, I've seen a few loosen. I now safety wire all of them.

However, Ive got to say that the only ones that loosened were on the engine manifold or otherwise attached to an engine. Haven't seen any loosen elsewhere, yet.

Key word, "yet." Safety wire them.

And if the airplane doesn't have it designed in, add a drain hole to the belly so that when fuel does leak, at least it'll drain out. Something I still need to do for my RV-3B under construction.

Dave
I have seen screw clamps on rubber hoses like used on the induction system of a Lycoming loosen over time, but it is not because the clamp loosens so I was not counting those when I wrote that. Those loosen because the hose shrinks and or gets compressed. Even then it is not a standard practice to safety wire them on a Lycoming engine.
When screw clamps are mounted on something non compressible, they don't loosen. At least not in an application like this.

BTW, hose shrinkage/compression is the reason that I replace the screw hose clamps on a Lycoming with constant tension spring clamps. I just did this on my personal airplane while installing the o-ring seal flanges on the induction tubes that are available from Ross at SDS Aero Products. The spring clamps are even more worthwhile on the oil return tubes, because being aluminum, the expand and contract a lot which causes the hose sections to get loose over time under the fixed tension screw clamps. The spring clamps will always be tight and leak free.
__________________
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.

Scott McDaniels
Hubbard, Oregon
Van's Aircraft Engineering Prototype Shop Manager
FAA/DAR
RV-6A (aka "Junkyard Special ")
Reply With Quote
  #26  
Old 01-02-2019, 01:59 PM
Aircraft Specialty Aircraft Specialty is offline
 
Join Date: Jan 2012
Location: Oconomowoc, WI
Posts: 499
Default

Quote:
Originally Posted by Azjulian View Post
Thanks for posting those pictures I was curious about the size of the pumps etc for the injection engine.

Great job on the lines that looks super clean !

I?m not sure why the negative comments because that looks very simple to me considering you have two pumps and it?s all in one place to inspect, that?s a great design.
The rv12is provided a great opportunity to fully utilize CNC tube bending technology to provide drop in lines for the 12iS aircraft that the OP of this message utilized in his aircraft.

Here is a video that shows the design process, fabrication, as well as tube final dimension verification.

https://www.youtube.com/watch?v=MPJnjjaBMVs

The 10:22 mark is where the actual tube bending begins. The rest of the video shows how the entire process is done from start to finish.

As always, we couldn't have done this without the help of some great beta testers. The RV/ Experimental community is comprised of some great people, and we really enjoy working with you to refine and improve the build experience.

Steve
__________________
Steve Tschurwald- Aircraft Specialty LLC (Your source for Custom Parts for Experimental Aircraft), AS FLIGHTLINES (Joint Venture with TS Flightlines)

aircraftspecialty@gmail.com

www.aircraftspecialty.com
www.asflightlines.com
Reply With Quote
  #27  
Old 01-03-2019, 07:07 AM
von_flyer von_flyer is offline
 
Join Date: Oct 2014
Location: Metamora, Michigan
Posts: 233
Default

Nice.
When I worked as a maintenance electrician for AC Spark Plug (1980ish) we used tube benders similar to this for mass production of lines for fuel tank units. About 20 benders, running much faster. Definitely an improvement in consistency and accuracy.
__________________
John von Linsowe

Michigan
RV-7
Cessna 140
Reply With Quote
  #28  
Old 01-04-2019, 01:00 PM
Major-Tom's Avatar
Major-Tom Major-Tom is offline
 
Join Date: Jul 2018
Location: Templin (Germany)
Posts: 70
Default

Quote:
Originally Posted by Mark33 View Post
Roger that! Has anyone built a 12 (EAB) with an Edge Performance 912 EFII/turbo? I?ll bet that would be one heck of a performer!! When I?m finished with my current -7 project I?m planning on building a Rans S-7 with the EP-912 EFII/turbo setup.

Mark
I could imagine 155HP to be an overkill for the RV-12. But staying carbed and using their 1484ccm BigBore kit could be an option.
__________________
D-MDYZ ICP Savannah-S built, flying, sold www.savannah-blog.de
D-ERVM RV-12iS #121128 99% done, waiting for first flight admission www.tomsworld.de
Reply With Quote
  #29  
Old 01-04-2019, 03:42 PM
randylervold's Avatar
randylervold randylervold is offline
moderator
 
Join Date: Dec 2004
Location: Mill Creek, WA
Posts: 617
Default

Quote:
Originally Posted by rvbuilder2002 View Post
BTW, hose shrinkage/compression is the reason that I replace the screw hose clamps on a Lycoming with constant tension spring clamps. I just did this on my personal airplane while installing the o-ring seal flanges on the induction tubes that are available from Ross at SDS Aero Products. The spring clamps are even more worthwhile on the oil return tubes, because being aluminum, the expand and contract a lot which causes the hose sections to get loose over time under the fixed tension screw clamps. The spring clamps will always be tight and leak free.
What are "spring clamps"?
__________________
Randy Lervold
RV-12iS, empennage/tailcone complete, wings currently, fuse in box
RV-3B, first flight 2007 - sold
RV-8, first flight 2001 - sold
Reply With Quote
  #30  
Old 01-04-2019, 04:12 PM
rvbuilder2002's Avatar
rvbuilder2002 rvbuilder2002 is offline
 
Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 9,667
Default

Quote:
Originally Posted by randylervold View Post
What are "spring clamps"?
https://www.grainger.com/product/GRA...se-Clamp-2UTG3
__________________
Opinions, information and comments are my own unless stated otherwise. They do not necessarily represent the direction/opinions of my employer.

Scott McDaniels
Hubbard, Oregon
Van's Aircraft Engineering Prototype Shop Manager
FAA/DAR
RV-6A (aka "Junkyard Special ")

Last edited by rvbuilder2002 : 01-04-2019 at 04:15 PM.
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -6. The time now is 08:18 AM.


The VAFForums come to you courtesy Delta Romeo, LLC. By viewing and participating in them you agree to build your plane using standardized methods and practices and to fly it safely and in accordance with the laws governing the country you are located in.