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  #31  
Old 03-15-2017, 08:13 AM
Mel's Avatar
Mel Mel is offline
 
Join Date: Mar 2005
Location: Dallas area
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Quote:
Originally Posted by bobnoffs View Post
i asked viking about the firesleeve and the answer was that you are going to be shutting your fuel off as soon as a fire is detected and the fuel source will be burnt up in a second.
to each his own. you build your installation as you wish. i firesleeved.
If you intend NOT to use fire sleeve, check with your inspector. Many will not sign off on such an installation.
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Mel Asberry..DAR since last century
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<n168tx(at)flytx.net>
North Texas (8TA5)
RV-6 Flying since 1993
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3-Blade Catto (since 2003)
FRIEND of the RV-1
Eagle's Nest Mentor

Last edited by Mel : 03-15-2017 at 10:17 AM.
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  #32  
Old 03-15-2017, 09:19 AM
bobnoffs bobnoffs is offline
 
Join Date: Jul 2012
Location: n. wi
Posts: 424
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i forgot ''the rest of the story''. a bare hose means you can inspect the hose anytime.
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n. wi.
dakota hawk/jab 3300 built and flying
RV-12 kit as of 9/13
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  #33  
Old 03-15-2017, 02:49 PM
boandrv7a boandrv7a is offline
 
Join Date: Mar 2017
Location: denver
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I dunno... Going back to my back-country roots, one of those stol 750's with one of those engines would be pretty darn fun!

Jim
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  #34  
Old 03-15-2017, 03:36 PM
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Piper J3 Piper J3 is offline
 
Join Date: Nov 2014
Location: Hinckley, Ohio
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Quote:
Originally Posted by bobnoffs View Post
i forgot ''the rest of the story''. a bare hose means you can inspect the hose anytime.
Yes, with the cowling off at annual condition inspection. What about the rest of time, like when you're flying, and hoping clear plastic hose isn't swelling from heat or abrading against something? All aircraft should follow accepted practices for aircraft system airworthiness - nothing less.
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Jim Stricker
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P/ASEL 1970 Sport Pilot since '04
80 hrs Flying Aeronca Chief 11AC
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RV-12 E-LSA #120058 AWC 7/12 Bought Flying 10/15 with 48TT - Hobbs now 317
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  #35  
Old 11-20-2017, 02:34 PM
E28POWER E28POWER is offline
 
Join Date: Jul 2016
Location: Hillsboro, OR
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How do address any CG issues with the added weight of the Viking engine?
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  #36  
Old 11-27-2017, 11:12 PM
gossend gossend is offline
 
Join Date: Dec 2011
Location: Georgetown, Texas
Posts: 152
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Originally Posted by E28POWER View Post
How do address any CG issues with the added weight of the Viking engine?
The Viking 110 is mounted aft of the rotax mounting point, so the empty cg is only 0.8 inches forward compared to the rotax airplanes. Flight behavior is essentially the same. Like all Vans designs, itís a very sweet flying airplane. Iíve flown it 300 hours in 18 mos and Iím loving every minute of it!
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  #37  
Old 11-28-2017, 06:32 AM
bobnoffs bobnoffs is offline
 
Join Date: Jul 2012
Location: n. wi
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use lipo battery/batteries and the c.g. change would be even less
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n. wi.
dakota hawk/jab 3300 built and flying
RV-12 kit as of 9/13
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  #38  
Old 11-29-2017, 10:07 AM
sarahfly13 sarahfly13 is offline
 
Join Date: Jun 2005
Location: Southern California
Posts: 7
Default Flying fun!

Hi all,

I wanted to chime in. We've been having a great time flying all over California for the past couple months in our Viking 110 powered RV-12. So far, we have about 70hrs on the plane. No major squawks with the engine yet.

They have had a couple required updates (flywheel, etc.) that required some extra work (flywheel replacement, etc.), but really not all that difficult, and the SB's seems to be on par with and the Rotax and RV-12 in general.

I did get a chance to spend some time in an SLSA RV-12 with a Rotax, so in comparison to the Rotax, here are my observations...
1. The liquid cooled engine seems to be less finicky in the hot weather here in California.
2. It seems to start easier, and sounds a little better too.
3. It also seems to climb and cruise slightly better than the Rotax.
4. It was approx 20# heavier than the Rotax, so I did give up some useful load.
5. It definitely took longer to build with a custom panel and engine requiring more work and head-scratching, but for me as an engineer, that was part of the challenge (and fun). Maybe + 6 months.
6. It was also a choice to go with an engine that does not have the same level of experience in the air as say a Lycoming or Rotax, but I did wait until there were several builders with a couple hundred hours, and did my research before jumping in.

So far, I'm pleased with my choice to build the -12 with the Viking. I'll try to update again in a year or so after I put some more hours on the engine.

Sarah
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