VansAirForceForums  
Home > VansAirForceForums

- POSTING RULES
- Donate yearly (please).
- Advertise in here!

- Today's Posts | Insert Pics


Go Back   VAF Forums > Model Specific > RV-12/RV-12iS
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #11  
Old 01-07-2019, 03:25 PM
AirHound AirHound is offline
 
Join Date: Oct 2006
Location: OFallon IL now, everywhere before
Posts: 259
Default Probability of CO?

What is the probability of CO from the exhaust coming back in to the cabin through airframe/spar and canopy leakage areas? Anybody measure with a CO detector?
__________________
Doug
Reply With Quote
  #12  
Old 01-08-2019, 10:58 AM
HansLab HansLab is offline
 
Join Date: Jan 2015
Location: Netherlands
Posts: 59
Default detection

CO detection is a must have in my opinion in airplanes. I' m still building, but I keep room on the panel for one.
__________________
Hans Labruyere
build & sold project Kitfox IV
Bought project & building RV12 #120742
Reply With Quote
  #13  
Old 01-08-2019, 01:00 PM
AirHound AirHound is offline
 
Join Date: Oct 2006
Location: OFallon IL now, everywhere before
Posts: 259
Default

Quote:
Originally Posted by HansLab View Post
CO detection is a must have in my opinion in airplanes. I' m still building, but I keep room on the panel for one.
The electronic one in Sxxxxys works real well and doesn't require panel space. Or, it is integral with portable Dynon ADSB-In, I think I read!

Hope somebody in the know attempts to answer the 'Probability of CO' questions two posts down.
__________________
Doug
Reply With Quote
  #14  
Old 01-08-2019, 01:24 PM
rvbuilder2002 rvbuilder2002 is offline
 
Join Date: Jul 2005
Location: Hubbard Oregon
Posts: 7,958
Default

Quote:
Originally Posted by AirHound View Post
Hope somebody in the know attempts to answer the 'Probability of CO' questions two posts down.
It is not a question that is easy to answer....
The probability is dependent on the build of the airplane.

There are some owners that say they have so much cold air coming in that the cabin heat seems to not even function.
There are others that say there cockpit /canopy is well sealed and they stay quite warm.
Each indicates a different amount of outside air entering the cabin, and depending on where the entry point(s) is of said air, will depend on the probability of any of it containing any Co.
__________________
Any opinions expressed in this message are my own and not necessarily those of my employer.

Scott McDaniels
Hubbard, Oregon
RV-6A (aka "Junkyard Special ")
Reply With Quote
  #15  
Old 01-08-2019, 10:47 PM
AirHound AirHound is offline
 
Join Date: Oct 2006
Location: OFallon IL now, everywhere before
Posts: 259
Default

Quote:
Originally Posted by rvbuilder2002 View Post
It is not a question that is easy to answer....
The probability is dependent on the build of the airplane.

There are some owners that say they have so much cold air coming in that the cabin heat seems to not even function.
There are others that say there cockpit /canopy is well sealed and they stay quite warm.
Each indicates a different amount of outside air entering the cabin, and depending on where the entry point(s) is of said air, will depend on the probability of any of it containing any Co.
Scott, is it conceiveable some amount of exhaust could find its way inside the cockpit say thru the main gear/fuselage junction openings in all phases of fight and the vent and/or heater forced air clears it out?
__________________
Doug
Reply With Quote
  #16  
Old 01-08-2019, 11:01 PM
RFSchaller RFSchaller is offline
 
Join Date: Oct 2010
Location: Phoenix, AZ
Posts: 2,397
Default

I have some concern in my Cherokee because it has a heat muff around the exhaust, but less about my RV-12 due to the radiator heater. Having said that I did pick up a couple of CO monitors on Amazon. Cheap insurance. ($25 each)
Reply With Quote
  #17  
Old 01-08-2019, 11:48 PM
llavalle's Avatar
llavalle llavalle is offline
 
Join Date: Oct 2008
Location: Québec, Canada
Posts: 391
Default

Quote:
Originally Posted by RFSchaller View Post
[...]but less about my RV-12 due to the radiator heater. [...]
Quick note for people reading this in the future : while the RV-12 uses a radiator heater, the RV-12iS does not and uses a more "regular" heat muff around the muffler for heat.
__________________
Philippe Marseille
RV-9A Kit Emp done, wings @50% - SOLD
RV-12is Emp kit on order!
Construction Web Cam (broken now)
Reply With Quote
  #18  
Old 01-10-2019, 11:27 PM
rongawer rongawer is offline
 
Join Date: Dec 2007
Location: Brentwood, CA
Posts: 362
Default

Aside from the seal kit, which I think works well, I've worked to seal all of the fuselage openings, such as:
- sealing the base of the vertical stabilizer.
- sealing around the steps where they insert into the fuselage.
- blocking some of the wedge openings in the baggage compartment aft bulkhead with foam wedges I cut out of rubber foam.
- Installed intersection fairings on my gear legs (with leg fairings)
- Installed stick boots on the control sticks. In practice, I didn't find much air inflow around the stick openings once the wing seals were in place, but the boots and carpet made a definite improvement in cabin insulation.

If you close up all of the holes in the aft bulkhead, then you will restrict heat in-flow as well as it has to have an exit somewhere. After some experimentation, I've found that blocking none makes for a cold baggage compartment, all of them reduces heat inflow, but 1/2 works well and is a sweet spot.

The biggest benefit is limiting cold air and rain intrusion, but it might also reduce drag a little bit.

Disclaimer: I use a heat muff with bypass valve.
__________________
Ron Gawer

- RV10, N1530G (reserved). Empennage in progress.
- RV12, N975G, "The Commuter"
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 05:37 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.