VansAirForceForums  
Home > VansAirForceForums

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

- Today's Posts | Insert Pics


Go Back   VAF Forums > Search Forums
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read

Showing results 1 to 32 of 32
Search took 0.01 seconds.
Search: Posts Made By: Onewinglo
Forum: RV General Discussion/News Yesterday, 03:32 PM
Replies: 8
Views: 386
Posted By Onewinglo
Looks good to me...

Do you have the standard Vans oil cooler? We went with a larger cooler and could not get near 180* in any phase of flight. We had to add a butterfly valve to throttle the airflow... Your setup...
Forum: Southeast 04-27-2019, 06:11 AM
Replies: 5
Views: 439
Posted By Onewinglo
KHDC

Carl, I'm based at Hammond. How can I help?
Forum: RV-8/8A 03-16-2019, 05:14 AM
Replies: 8
Views: 739
Posted By Onewinglo
Modified kit

The rear rudder pedal kit from Vans is a disappointment. Several folks have used the Vans kit as a template for an improved system. This is one example...
Forum: RV-8/8A 01-24-2019, 07:46 PM
Replies: 6
Views: 719
Posted By Onewinglo
We elected not to use the aluminum strips. We...

We elected not to use the aluminum strips. We installed the rubber channel on underside of the horizontal stabilizer sealing against the fuselage. Very clean and simple. I can send a couple images...
Forum: RV-8/8A 12-29-2018, 03:04 PM
Replies: 50
Views: 14,859
Posted By Onewinglo
Cut the pipes?

Charlie, I agree the pipes in the slipstream likely cause drag. I sent Clint at Vetterman an email asking about cutting the tips at an angle parallel with the sub-cowl opening.
I want the exhaust...
Forum: RV-8/8A 12-29-2018, 07:14 AM
Replies: 50
Views: 14,859
Posted By Onewinglo
Speed Increase? - Maybe

Mickey,
Nothing conclusive about speed yet. I've only made two runs at altitude due to weather. One flight due North and one South.
Normally our -8 yields 185 mph true, at 2500 rpm, at 8000...
Forum: RV-8/8A 12-28-2018, 06:52 PM
Replies: 50
Views: 14,859
Posted By Onewinglo
Revised RV-8 Sub-Cowl

I tufted our RV-8 and flew with the modified sub cowl a few days ago. The point of the sub cowl is to reduce the exit opening to raise CHT and oil temperature, which it has. (Our XP360 was running...
Forum: RV General Discussion/News 05-30-2018, 12:48 PM
Replies: 25
Views: 3,459
Posted By Onewinglo
QT Halo

I have both Lightspeed Zulu 2s and QT Halos. I mostly use my QT Halos for the following reasons:
I can wear a big hat for sun protection.
No ear cup seal for my glasses to interfere with.
My Halos...
Forum: RV-8/8A 04-20-2018, 05:57 PM
Replies: 50
Views: 14,859
Posted By Onewinglo
Tom, Thanks for sharing your experience on this...

Tom,
Thanks for sharing your experience on this issue. I'm sure you are correct about the exit air should be aligned with the slipstream. After tuft testing and pondering everyone's suggestions the...
Forum: RV-8/8A 04-17-2018, 11:39 AM
Replies: 50
Views: 14,859
Posted By Onewinglo
Dave, we have not flown enough to get any real...

Dave, we have not flown enough to get any real performance data yet. I'll call it "In Progress" and I'll report back when we have something.
We have noticed a modest increase in CHT and maybe oil...
Forum: RV-8/8A 04-17-2018, 10:39 AM
Replies: 50
Views: 14,859
Posted By Onewinglo
Mike, you are correct in that the bottom surface...

Mike, you are correct in that the bottom surface does curve up a bit. I see how that could disturb air flow. Thanks for the Coanda effect concept. We may incorporate the shape if we modify this...
Forum: RV-8/8A 04-16-2018, 11:12 AM
Replies: 50
Views: 14,859
Posted By Onewinglo
Baseline Tuft Testing (W/O Sub Cowl)

I removed our SubCowl, tufted the belly and recorded the results. The exit flow from the Sam James cowl was pretty good. Better than we expected. Looking closely at the sub cowl we can see where...
Forum: RV-8/8A 04-12-2018, 03:09 PM
Replies: 50
Views: 14,859
Posted By Onewinglo
Baseline

Brian,
Baseline is a good idea. I had not considered that. Our sub-cowl is easy to remove so I may take it off, tuft and record a flight.
Thanks!
Forum: RV-8/8A 04-11-2018, 04:03 PM
Replies: 50
Views: 14,859
Posted By Onewinglo
Inflection Point?

Kyle, I hate to display my ignorance, but is the inflection point on the following edge of the exit opening?
Thanks!
Forum: RV-8/8A 04-11-2018, 03:52 PM
Replies: 50
Views: 14,859
Posted By Onewinglo
No frontal area increase

No we did not change the frontal area of the lower cowl. We simply added the sub cowl and changed/reduced the exit in an effort or reduce cooling drag. The link below has a couple images that will...
Forum: RV-8/8A 04-10-2018, 03:43 PM
Replies: 50
Views: 14,859
Posted By Onewinglo
The inlets are the standard round inlets that...

The inlets are the standard round inlets that come on the James cowling. We built a custom plenum that cools very well.
Thanks for the comments.
JP
Forum: RV-8/8A 04-10-2018, 03:25 PM
Replies: 50
Views: 14,859
Posted By Onewinglo
Thanks for the pointers Steve. Yes the leading...

Thanks for the pointers Steve. Yes the leading edge has a large radius that spans up to the ramp (cooling channel) above. Therefore, it must be the adverse gradient you pointed out. Thanks for the...
Forum: RV-8/8A 04-10-2018, 11:36 AM
Replies: 50
Views: 14,859
Posted By Onewinglo
Thanks for the pointers Dan V. The camera is a...

Thanks for the pointers Dan V.
The camera is a GoPro Hero 5. The mount was a Cessna strut mount attached to the gear leg with a double ball and socket arm. The ball and socket was fine at 160 mph...
Forum: RV-8/8A 04-10-2018, 11:28 AM
Replies: 50
Views: 14,859
Posted By Onewinglo
So Far, So Good

Its better than we expected so we are calling it a success, so far. I'm interested in CHTs and oil temp in the heat of the summer AND any noticeable change in performance flying high and fast. ...
Forum: RV-8/8A 04-10-2018, 10:21 AM
Replies: 50
Views: 14,859
Posted By Onewinglo
Tuft Testing RV-8 Sub-Cowl

My partner and I felt we were overcooling our O-360 XP so he designed and built a sub-cowl to reduce the exit opening and reduce cooling drag. We expect the reduction in exit opening will increase...
Forum: RV-8/8A 04-04-2018, 03:06 PM
Replies: 12
Views: 2,699
Posted By Onewinglo
What Heat?

I wish I had your dilemma of how to direct the heat. My -8 has no heat at all. When I joined the project partnership the airplane was about 80% complete and my partner had decided against adding...
Forum: RV-8/8A 12-06-2017, 10:59 AM
Replies: 13
Views: 3,286
Posted By Onewinglo
Axel, no I did not subtract the area of the...

Axel, no I did not subtract the area of the exhaust - good point. Makes the exit area a little less Huge.

jrs14855, Thanks for the note about the Dave Anders articles in Kitplanes. I found the...
Forum: RV-8/8A 12-05-2017, 05:48 PM
Replies: 13
Views: 3,286
Posted By Onewinglo
Thanks for the reply guys. Yes 84 inches is...

Thanks for the reply guys. Yes 84 inches is correct. The opening measures 13.750" wide (at the middle of the trapezoid) and 6.125" high.
My partner and I were looking at how we could cut and raise...
Forum: RV-8/8A 12-04-2017, 11:50 AM
Replies: 13
Views: 3,286
Posted By Onewinglo
Thanks for the ratio Robin8er. Kevin I did read...

Thanks for the ratio Robin8er.

Kevin I did read The Shrinking Exit some time back. I'll revisit the thread.
Thanks for the reminder.
Forum: RV-8/8A 12-04-2017, 10:31 AM
Replies: 13
Views: 3,286
Posted By Onewinglo
Overcooling the RV-8? (Warning Long Post)

Guys I suspect we are overcooling our RV-8 engine and suffering with excess cooling drag in the process. We built and installed a nearly leak free plenum.
The James Cowling exit area appears to be...
Forum: RV General Discussion/News 05-05-2017, 02:21 PM
Replies: 77
Views: 17,819
Posted By Onewinglo
PCP said No Problem...

My PCP read the document, conducted the exam and signed the document.
No problem.
Forum: RV General Discussion/News 04-29-2017, 03:01 PM
Replies: 30
Views: 7,692
Posted By Onewinglo
Our plenum...

Thanks for the information guys. This a big help to us new folks like myself.
My partner had bought the James plenum but elected to build from scratch. We have had excellent cooling with CHTs about...
Forum: RV-8/8A 04-23-2017, 11:20 AM
Replies: 44
Views: 18,906
Posted By Onewinglo
Bruce, I'll be happy to pay for the parts if you...

Bruce,
I'll be happy to pay for the parts if you have them. We just signed off Phase one on our -8 and I would love to make a mirror. I'll PM my address.
Thanks, JP White
Forum: RV-8/8A 12-26-2016, 05:50 AM
Replies: 58
Views: 28,049
Posted By Onewinglo
SB Complete

I saw the Service Bulletin Tuesday evening and emailed it to my partner. Next morning Mitch said "I'll bet money those bolts are not in there". A quick inspection revealed 12 missing bolts in the...
Forum: RV General Discussion/News 09-15-2016, 06:57 PM
Replies: 15
Views: 3,900
Posted By Onewinglo
Best video I've seen in quite a while and I love...

Best video I've seen in quite a while and I love the sound track! We should have our -8 in phase one by November. Can't wait!
Forum: RV-8/8A 08-10-2016, 02:58 PM
Replies: 38
POH
Views: 7,897
Posted By Onewinglo
Me too please! Thanks! jp_white@att.net

Me too please!
Thanks!
jp_white@att.net
Forum: RV General Discussion/News 05-13-2016, 03:01 PM
Replies: 84
Views: 16,058
Posted By Onewinglo
Just left the airport where a friend has a...

Just left the airport where a friend has a retriever named Buzz.
Showing results 1 to 32 of 32

 
Forum Jump

All times are GMT -6. The time now is 02:33 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.