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  #1  
Old 12-07-2011, 07:19 PM
DRBuilder's Avatar
DRBuilder DRBuilder is offline
 
Join Date: Apr 2011
Location: Wake Forest, NC
Posts: 96
Default Super-7 N713DR Early Testing Results

I think this is going to be one AWESOME cross country machine!!!!!!
Indicated Airspeed: 204 mph, TRUE airspeed 230 mph, 12.2 GPH HELLO!!!!!!!!!
Follow this link to my builder website to see a snapshot photo of my Dynon Skyview PFD during one of my early test flights....
http://www.drrv7.com/Performance.html
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Dennis Roberts
Wake Forest, NC
EAA 1114, Apex, NC
N713DR Super-7 IO/540 SOLD
http://www.drrv7.com
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  #2  
Old 12-07-2011, 11:24 PM
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hydroguy2 hydroguy2 is offline
 
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Location: Townsend, Montana
Posts: 3,179
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smokin'

I'm interested in the modifications you made to enable the IO-540 install. Thicker skins? lengthened fuse? fuel capacity? etc....
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Brian, N155BKsold but bought back.
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  #3  
Old 12-08-2011, 02:19 AM
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rvmills rvmills is offline
 
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Location: Georgetown, TX
Posts: 2,143
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Dennis,

Very nice!! I was wondering about the parameters (ALT, MP, RPM, etc), but saw those in the picture (6700 MSL, about 23 squared...good stuff!). I've re-posted that pic here, so I can follow it with some others (hope ya don't mind!)



Those are very close to the numbers I see at the same settings, so it sounds like the S7 and S6 are nicely matched! I don't have pictures of that regime, but here are some pics from a recent X-C to the Rocket 100 race in Taylor...it'll give you another look at how great your plane will go X-C!

13,500 MSL, WOT, 2100 RPM, LOP = 187 KTAS (215 MTAS) @ 8.9 gph!
24 SMPG...@ 200+! 4 cylinder RV's can do better (MPG-wise), of course, but fly-along fuel flow when flying with RV bro's is surprisingly close.




With my legacy Dynon and VM, it takes 2 pics to show what you show on 1 screen, and its not quite as purty as yours (I have EFIS envy! ). Here's a shot looking out on this leg, which was 595 NM from Beaver, UT to Brownfield, TX, done in 3.1 (including taxi); fillup was 27.63 gals (22 NMPG, 24+ SMPG).



You will enjoy those Cross Countries!

Hey, speaking of races...can Dennis come out and play next spring?
(Shhhh...be vewy, vewy qwiet...we aw hunting Wockets! )

Have fun with your new machine! Sure is a beauty!

Cheers,
Bob
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Bob Mills
RV-S6 "Rocket Six" N49VM
Cross Country-Marshall Field (07TS)
Georgetown, TX
President/Sport 49, Sport Class Air Racing
Trustee, Formation Flying Inc (FFI)
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  #4  
Old 12-08-2011, 05:26 AM
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The skyview seems to indicate a 99 mph crosswind condition. Wow, really?

Erich
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  #5  
Old 12-08-2011, 07:20 AM
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I am quite impressed! As an RV7 lover that cannot have one, is this a one off or are there others so endowed with power?
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  #6  
Old 12-08-2011, 07:47 AM
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I think I'd be a bit concerned with the CHT's and the spread you have there. Two cylinders over 400 two more in the 390's and one down at 306. Any thoughts on why the one is so low and several are very high?
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  #7  
Old 12-08-2011, 08:36 AM
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Quote:
Originally Posted by DRBuilder View Post
Indicated Airspeed: 204 mph, TRUE airspeed 230 mph, 12.2 GPH
Better not brag too much until you have calibrated your airspeed. I started out with a 240 mph RV-8

Go here: http://www.kilohotel.com/rv8/phplinks/index.php?&PID=1
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Barrett IO-390
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  #8  
Old 12-08-2011, 09:04 AM
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miyu1975 miyu1975 is offline
 
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Location: Indianapolis, IN
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what is VNE on the 7. didn't see it on vansaircraft.com...just curious
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RV7 N612RA, flying since july 2012
E-170/175

RV10 Tail Kit complete, Wings 98%, Working on Fuselage, AEIO-540 on the stand
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  #9  
Old 12-08-2011, 09:17 AM
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rvmills rvmills is offline
 
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Quote:
Originally Posted by erich weaver View Post
The skyview seems to indicate a 99 mph crosswind condition. Wow, really?

Erich
Quote:
Originally Posted by DanH View Post
Better not brag too much until you have calibrated your airspeed. I started out with a 240 mph RV-8

Go here: http://www.kilohotel.com/rv8/phplinks/index.php?&PID=1
Dennis,

Dan has a good point. I doubt you were braggin' as much as celebrating , but the 99 knot wind indication that Eric saw (sharp eyes Eric!) was something I saw on my Garmin 396 before I calibrated my compass, per the Dynon manual. I also have run many 4 way GPS runs and used the 4 way NTPS spreadsheet from Kevin's site (Dan's link) to calibrate my airspeed indicator. Interestingly, I've found it to read about 2 knots high, which is the delta I see in my pics above (between the GPS-derived TAS shown on the HSI and the Dynon TAS, shown on the ADI).

That's part of the fun of Phase I though...wringing out and calibrating all these types of things. Your speeds are believable from my experience, but it will be fun to see how it settles in via testing. The invitation to race still stands (no pink slips...just fun! ).

Cheers,
Bob
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RV-S6 "Rocket Six" N49VM
Cross Country-Marshall Field (07TS)
Georgetown, TX
President/Sport 49, Sport Class Air Racing
Trustee, Formation Flying Inc (FFI)
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  #10  
Old 12-08-2011, 09:25 AM
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Location: Wake Forest, NC
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Default Temp Spread

Quote:
Originally Posted by rvatornate View Post
I think I'd be a bit concerned with the CHT's and the spread you have there. Two cylinders over 400 two more in the 390's and one down at 306. Any thoughts on why the one is so low and several are very high?
Since that photo was taken, I have installed a baffel plate in front of the #1 cylinder and that has dramatically leveled the temp range between cylinders. Now the spread tends to be around 20 degree dirrerence max. If I could figure out how Bob posted the shot of my PFD, I would post an updated photo with the CHT spread of less than 20 now. The baffel worked perfectly.
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Wake Forest, NC
EAA 1114, Apex, NC
N713DR Super-7 IO/540 SOLD
http://www.drrv7.com

Last edited by DRBuilder : 12-08-2011 at 10:02 AM.
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