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  #51  
Old 03-25-2016, 06:21 PM
rightrudder rightrudder is offline
 
Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,853
Default

Hey Jim,

Look at the replies over on the "engines" subform. I'm going to try to get some fuel flow data with the GAMI spread method.

I don't recall the EGTs ever going above 1500, even LOP. My cylinder No. 1 is always the hottest, but that could be the result of how close the sensor is to the exhaust port. Offhand, I can't remember where I put it on the header....will have to check next time the cowl is off.

Cutting the dam back didn't really reduce EGT, just CHT.

Here's data from today's flight. At 8500', about 2530 rpm, OAT of about 50 degrees F, and leaned about 75 degrees ROP:

1) 1394
2) 1325
3) 1308
4) 1299

I flew 3.1 hours...longest flight yet! I did a couple landings at Apple Valley, and tried a midfield entry to the downwind for a change. It was a pretty calm day, but on the way back to Cable, the turbulence in the pass was the worst I've experienced. At least I'm getting used to it, so it's not the white knuckle ride that I had in the early hours. Can't wait to do a nice calm flight along the coast from, say, Dana Point to San Diego.

I doubt the bumps ever exceeded 1g, but I'm a bit of a turbulence wimp. Maneuvering speed, you are my friend!!
__________________
Doug
RV-9A "slider"--sold in July 2021
Flew to Osh in 2017, 2018 & 2019!
Donation made for 2021
You haven't seen a tree until you've seen its shadow from the sky -- Amelia Earhart
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  #52  
Old 04-01-2016, 06:05 PM
rightrudder rightrudder is offline
 
Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,853
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Almost there! Another 3.1-hour flight this morning, with four landings at Apple Valley. Met a super nice guy there named Joe, who came over to pay me a compliment on my RV. As I was taxiing toward the restrooms, I saw his plane, a really pristine Cessna 180, as he was taking it out of the hangar. It is so nice to have people recognize the sweat and blood we put into our aircraft. Sometimes, now that I'm flying my RV, I'll look back at it when it's parked and think to myself, "Did I really build that?" Even though it's only been a few months, the days of riveting, sanding and deburring seem like they were years ago. A rip in the space/time continuum?

I was going to get some GAMI spread numbers, but I'm not yet familiar enough with the leaning page on the EFIS to do this. Instead, I just fooled around with LOP mixture while in steady state cruise. The fuel flow really does come down....maybe 30 degrees LOP at 2450 rpm and I was seeing 6.1 gph. Crazy how it rockets to 10 or so with a really fat mixture. I'm still not trusting the fuel flow numbers completely, but it does provide relative numbers at least. I topped off with 20.2 gallons, so overall it works out to about 6.5 gph.

So two more longish flights ought to get me to 40 hours, but I'm thinking two medium long flights, plus 30 minutes at sunset to hit the number. I'll have a new product PIREP after the next flight....I just got a Faro G2 ANR headset to replace my cheapo passive one. The (fake?) leather ear cushions are great, the top cushion is nice and plush, it's pretty light, and the price is right at $350.
__________________
Doug
RV-9A "slider"--sold in July 2021
Flew to Osh in 2017, 2018 & 2019!
Donation made for 2021
You haven't seen a tree until you've seen its shadow from the sky -- Amelia Earhart

Last edited by rightrudder : 04-01-2016 at 06:09 PM.
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  #53  
Old 04-04-2016, 08:50 PM
rightrudder rightrudder is offline
 
Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,853
Default A free man at last!!

Today, I hit 40 hours and change:



I went for a marathon flight yesterday (3.7 hours) and another 3.2 this a.m. to hit the magic number. A perfect calm morning for a final "Thanks for the memories" tour of the practice area. It was very serene just cruising around; now that the engine is broken in, I was happy to relax at about 5.4 gph doing 128-ish KTAS.

So in the spirit of delayed gratification, she's going to the paint shop next week. When I stretch her legs to a fly-in or whatever, she'll be painted and presentable. Those comments about the pink cowl get old fast!

I'm loving the new Faro ANC headset. I was a little concerned with a crackling noise I heard at run-up, but it disappeared completely once airborne. I mounted the battery box on the cap strip with velcro, a nice out-of-the-way location.







I don't have much basis for comparison, but back in 2009, I bought a top-line BOSE ANC headset for use in the plane I was renting, and came away disappointed. It cut the noise alright, but emphasized the metallic sound of the engine, sort of a perpetual rod knock chorus that was disconcerting to say the least! I sent it back. Not a ding on the BOSE stuff...it might have been particular to the plane I was flying, intercom system, etc.

But the Faro is great....takes much of the low-frequency boom away, but no metallic sounds. It really does help reduce the fatigue level on a longer flight.

Thanks to everyone for the valuable input on this thread. I have learned a TON! I'll definitely post a pic or two of N427DK with its shiny new paint.
__________________
Doug
RV-9A "slider"--sold in July 2021
Flew to Osh in 2017, 2018 & 2019!
Donation made for 2021
You haven't seen a tree until you've seen its shadow from the sky -- Amelia Earhart

Last edited by rightrudder : 04-04-2016 at 08:58 PM.
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  #54  
Old 04-04-2016, 09:10 PM
PilotjohnS PilotjohnS is offline
 
Join Date: Jan 2016
Location: Southwest
Posts: 1,810
Default Congrats

Congratulations. Thanks for sharing. I went through your entire build posts last night. You are an inspiration. I loved reading your latest flight reviews. You seemed to have built in record time. I hope I am half as fast. Good Luck with finding all those wonderful places to visit in the southwest. Maybe you will be our west coast Vlad??
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John S

WARNING! Information presented in this post is my opinion. All users of info have sole responsibility for determining accuracy or suitability for their use.

Dues paid 2021, worth every penny

RV9A- Status:
95% done, 10% left to go
Electrical/Panel done
Firewall Forward 75%done
Fiberglass 0%, thought i was building in metal?
www.pilotjohnsrv9.blogspot.com
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  #55  
Old 04-04-2016, 10:21 PM
bruceh's Avatar
bruceh bruceh is offline
 
Join Date: Mar 2008
Location: Ramona, CA
Posts: 2,509
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Woo Hoo! Who's getting the first ride? We will have to meet up sometime and do a breakfast/lunch flight.
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Bruce Hill
RV-9A N5771H flown over 900 hours!
http://www.overthehills.com/RV-9A-Project
APRS Tracking for KJ6YRP and Flying Over the Hills Blog
2021 VAF donator
EAA Tech Counselor, Pre Buys, Build assistance - canopy/tanks/fiberglass/electrical/repairs
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  #56  
Old 04-05-2016, 01:08 AM
rightrudder rightrudder is offline
 
Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,853
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Thanks, Bruce and John!

Bruce, by all means. It'll be fun to do a "flight of two" in loose formation somewhere...preferably to a place with a good restaurant and cheap 100LL! I think my friend Anthony will be first pax; he helped with the wing fitting.

John, so glad you got something meaningful from my posts. Good luck with your build. I'm honored that I'm even considered for the position of West Coast Vlad.
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Doug
RV-9A "slider"--sold in July 2021
Flew to Osh in 2017, 2018 & 2019!
Donation made for 2021
You haven't seen a tree until you've seen its shadow from the sky -- Amelia Earhart
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  #57  
Old 04-05-2016, 09:58 PM
rightrudder rightrudder is offline
 
Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,853
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I called the paint shop today and they have a considerable backlog, so it looks like I'll be flying a while more with the Pepto cowl. I think I'll meet with them next week and put down a deposit to get my rock in line.

Bruce, I'd do the Ramona fly-in in a heartbeat, but I have a golf tournament that day. [mixed feelings emoticons]
__________________
Doug
RV-9A "slider"--sold in July 2021
Flew to Osh in 2017, 2018 & 2019!
Donation made for 2021
You haven't seen a tree until you've seen its shadow from the sky -- Amelia Earhart
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  #58  
Old 04-05-2016, 10:45 PM
whd721 whd721 is offline
 
Join Date: Oct 2007
Location: Beaverton, OR
Posts: 233
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For the record, N721WD passed 40 hours on April 2, 2016.

I am still trying to sort where I am in my Flight test/POH data.
I had two engine break-in periods and one Red Cube failure in the 40 hours. My personal flight test program will extend into the next flight hours.

Engine YO-233-EXP 115hp @ 2800 rpm
Cruise ~140 mph @ 5,000 ft @ ~ 4.7 gph.
Stall clean 55 mph
Stall Landing 47 mph
Empty Weight 1005 Lbs
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whd721
RV9A
Sherwood, Oregon
As Bill Stout (designer of the Ford Trimotor) used to say, ?Simplicate and add Lightness?
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  #59  
Old 04-05-2016, 10:54 PM
whd721 whd721 is offline
 
Join Date: Oct 2007
Location: Beaverton, OR
Posts: 233
Default

For the record, N721WD passed 40 hours on April 2, 2016.

I am still trying to sort where I am in my Flight test/POH data.
I had two engine break-in periods and one Red Cube failure in the 40 hours. My personal flight test program will extend into the next flight hours.

Engine YO-233-EXP 115hp @ 2800 rpm
Cruise ~140 mph @ 5,000 ft @ ~ 4.7 gph.
Stall clean 55 mph
Stall Landing 47 mph
Empty Weight 1005 Lbs
__________________
whd721
RV9A
Sherwood, Oregon
As Bill Stout (designer of the Ford Trimotor) used to say, ?Simplicate and add Lightness?
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  #60  
Old 04-06-2016, 01:06 AM
rightrudder rightrudder is offline
 
Join Date: Mar 2014
Location: Laguna Hills, CA
Posts: 1,853
Default

Congrats on finishing your Phase 1 You can go a long ways on a 4.7 gph burn!
__________________
Doug
RV-9A "slider"--sold in July 2021
Flew to Osh in 2017, 2018 & 2019!
Donation made for 2021
You haven't seen a tree until you've seen its shadow from the sky -- Amelia Earhart
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