VansAirForceForums  
Home > VansAirForceForums

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

- Today's Posts | Insert Pics


Go Back   VAF Forums > Model Specific > RV-8/8A
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Reply
 
Thread Tools Search this Thread Display Modes
  #11  
Old 09-23-2019, 12:01 PM
Onewinglo's Avatar
Onewinglo Onewinglo is offline
 
Join Date: Apr 2016
Location: Hammond, LA
Posts: 55
Default

Quote:
Originally Posted by elev666 View Post

JP , would you happen to remember were you sourced the butterfly valve you used , I’m using a FW mounted 13 row and there will be days I need to close off cooling air flow here , yours looks nice and light and will save me reinventing one here !
Aircraft Spruce 3". The flange on the baffle came from Spruce also.
https://www.aircraftspruce.com/catal...?clickkey=7368

A better view.
https://photos.app.goo.gl/d9FPhN24KVj4NZgz6
__________________
JP White
RV-8 Year Two
Cessna 170A SOLD
2019 Dues Paid
A new pilot having fun!

Last edited by Onewinglo : 09-23-2019 at 12:03 PM. Reason: More info
Reply With Quote
  #12  
Old 09-23-2019, 01:37 PM
scsmith scsmith is online now
 
Join Date: Jan 2008
Location: Ashland, OR
Posts: 2,184
Default

Quote:
Originally Posted by elev666 View Post
JP , would you happen to remember were you sourced the butterfly valve you used , Iím using a FW mounted 13 row and there will be days I need to close off cooling air flow here , yours looks nice and light and will save me reinventing one here !
I made my own 3.5" butterfly valve that mounted to the rear baffle and then attached a 3.5" scat tube to run to the cooler. I am now in the process of increasing to 4" scat and a 4" butterfly valve -- I think the 3.5" is a little too small for the large oil cooler for the angle valve engine.
__________________
Steve Smith
Aeronautical Engineer
RV-8 N825RV
IO-360 A1A
WW 200RV
"The Magic Carpet"
Hobbs 580
also LS-6-15/18 sailplane
VAF donation Jan 2019
Reply With Quote
  #13  
Old 09-23-2019, 02:34 PM
DanH's Avatar
DanH DanH is online now
 
Join Date: Oct 2005
Location: 08A
Posts: 8,801
Default

Quote:
Originally Posted by Danny King View Post
I am currently using the 10599 on my I0360A1B6 and cruise around 200F-205F. I know that is within limits, but would love to cruise closer to 190F. Would swapping my 10599 for a 10611 accomplish that?
Probably, depending on upper and lower cowl pressure. I can tell you how to measure it if you wish to have assurance before doing the swap.

I have some cowl pressures for RV-8's. I'll look at the numbers. Remind me if I forget.

Quote:
Will the 10611 mount in the foot print of the 10599? My 10599 is mounted behind #4 on the aft baffle.
No, it is physically larger, and will probably need to be remote mounted.
__________________
Dan Horton
RV-8 SS
Barrett IO-390
Reply With Quote
  #14  
Old 10-10-2019, 09:28 AM
FlyGood FlyGood is offline
 
Join Date: Dec 2009
Location: League City, TX
Posts: 20
Default

For Dan: For your converging oil cooler exit duct, what is the ratio of the duct exit area at the bottom of the cowl to the area at the exit of the cooler?
__________________

Ken Cockrell
RV-8 Fuselage Slow-Build In-work; on gear
Tail Kit complete
Wings In-work
N247TM Reserved
Reply With Quote
  #15  
Old 10-10-2019, 10:22 AM
DanH's Avatar
DanH DanH is online now
 
Join Date: Oct 2005
Location: 08A
Posts: 8,801
Default

Quote:
Originally Posted by FlyGood View Post
For Dan: For your converging oil cooler exit duct, what is the ratio of the duct exit area at the bottom of the cowl to the area at the exit of the cooler?
It does not extend all the way to the freestream, but rather to the top of a converging exit bell exhausting all the cowl air. Oil cooler mass flow meets the majority mass flow at a right angle, more or less, so I didn't want significant velocity. So, if the duct exit is smaller than the cooler face area, it is not by much. The area was set by the available space between engine mount tubes. I do not know the exact area.



__________________
Dan Horton
RV-8 SS
Barrett IO-390
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 04:51 PM.


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.