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Old 10-05-2017, 09:01 AM
Raymo's Avatar
Raymo Raymo is offline
Join Date: Nov 2014
Location: Richmond Hill, GA (KLHW)
Posts: 1,802

Belle avion!!!

(Hopefully Google translator worked correctly)
RV-7A - Slider - N495KL - First flt 27 Jan 17
O-360-A4M w/ AFP FM-150 FI, 1 PMag, Vetterman Trombone Exh, SkyTech starter, PlanePower Alt
Catto 3 blade NLE, FlightLines Interior, James cowl, plenum & intake, Anti-Splat -14 seat mod and nose gear support
All lines by TSFlightLines

"The object of the game, gentlemen, is not to cheat death: the object is not to let him play."
Patrick Poteen, Sgt. U.S. Army
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Old 12-03-2017, 07:40 PM
engineerorange engineerorange is offline
Join Date: Apr 2008
Location: Catawba, NC
Posts: 168
Default N74WK

RV7-A Slider
O-360 Carb
Sensinich Aluminum prop
Full Paint, Leather Seats, no other interior
Nose Job 2

Left Main 399#
Right Main 400#
Nose 265#

Empty Weight 1064lb@80.536"
mangling aluminum since May 2009
RV7-A, flying
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Old 01-21-2018, 04:02 PM
Robb Robb is offline
Join Date: Sep 2015
Location: Nevada City Ca
Posts: 125

RV7 IO360 Sam James Plenum Injected leather seats no side panels
painted tilt up oil no fuel IFR 1093 lbs
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Old 01-21-2018, 06:24 PM
BillL BillL is offline
Join Date: Sep 2007
Location: Central IL
Posts: 4,552

Tip Up
No Paint
SJ Cowl
IO360 M1B
CS Composite Hartzell
1/2 Raven
Oil Accumulator
OA Seats, Abby Leather w/heat
Classic aero - carpets side panels
Fire extinguisher

1139 lbs
MainR 538
MainL 535
TW 66

She is a little heavy, but I am not.

1st Flight 1-27-18
Phase II 8-3-18
Repairman 11-15-18
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Old 01-21-2018, 09:10 PM
cropdusterdave cropdusterdave is offline
Join Date: Mar 2005
Location: Fargo, ND
Posts: 143

Tip up
no paint
O-320 160 HP
Fixed pitch
classic aero seats and full carpet
lt main 472
rt main 474
tw 68

1014 lbs
RV-7 Flying
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Old 03-28-2018, 09:47 PM
Jpm757 Jpm757 is offline
Join Date: May 2013
Location: Sherman, CT
Posts: 235

RV-7 Slider
Lycoming IO-360-M1B
MT Constant Speed Prop
AFS 5600 Quick Panel with Dual ADAHRS
Manual Flaps and Trim
Full Classic Aero interior with heated seats
Rocket link tailwheel steering arm
Oversized 380x150 Tires
Exterior a mix of paint and vinyl

Left Main 500.8
Right Main 507.5
Tailwheel 72.8
Empty Weight 1081.1
Useful Load 718.9
CG 80.62

This is a great thread for anybody in the building/planning stage of a 7. If you are building a taildragger, I would recommend keeping everything mounted as far forward as possible especially if you are going with a light prop. It seems the 7 was designed around a heavier engine and heavier prop. Once you start adding people and baggage, the CG can move aft quickly, especially if you have a composite prop, even if it is a Constant Speed. Without the weight on the nose you can end up with a limited baggage capacity if you don't plan accordingly.
RV6 completed 1991 sold.
RV7 #72018 N767T first flight 11/21/2017 170+ hrs.
IO-360M1B MT 3 blade, Dual AFS 5600.
1941 J3 Cub skis floats.
2019 dues gladly paid.
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Old 07-21-2018, 08:18 AM
tgmillso tgmillso is offline
Join Date: Nov 2012
Location: Launceston, Tasmania, Australia
Posts: 633
Default RV-7 weight numbers

I completed the weight and balance on my RV-7 today with the following configuration and results:

Type: RV-7
Engine: IO-360M1B with dual PMAGS
Prop:Hartzell 72" Blended Airfoil CS prop
Dual Andair wing root gascolators, Andair fuel pump, Andair fuel valve.
Single G3X Touch IFR panel (GTN 625, G5, heated pitot, autopilot etc...)
Electric pitch and roll trim
Night lighting (flyleds Nav/Strobe and Baja Squadron Pro landing lights)
Tosten military grips
Dual brakes
Airframe fully primed internally (Ekopoxy) and fuselage fay sealed.
Canopy Supertracks (best mod on the aircraft)
Sikaflex Canopy and Carbon/Glass skirt
Full carpet (walls self adhesive "fossliner" 340gsm, baggage and seat pan with 490gsm Spectropile and forward floor with Autex Reef 800gsm)
Forward floor 3/4" sound insulation foam.
All Van's seat cushions/spacers installed (canvas covered)
5 point Crow harnesses.
EarthX lithium battery, single alternator
Oversized 380-150x5 tires (second favourite mod)
JD Air Parts Tailwheel assembly and vent/drain fairings.
Ceramic wool/stainless firewall protection
Titanium/ceramic wool belly fire protection
Fire extinguisher
Flight manual
Luggage net
Full external paint and all fairings in place.
Full oil
Unusable fuel (22lb or 3.68gal total)

Total Empty Weight: 1135lbs
Empty Arm: 79.35"

Tailwheel weight: 62lbs

So it appears I built a bit of a pudgy sucker. I focused hard on keeping the CG forward during the build, which I achieved, however I blew my target weight by 27lbs. It's amazing how all of these little mods add up, even after the lithium battery weight saving. With two 170lb people on board and full fuel I'm limited to a baggage weight of 72lbs due to gross weight (1800lb) limits, and for aerobatics I'm limited to half tanks with two on board. In no loading case am I CG limited.
If I was to do things again, I would look at a lighter engine/prop combo (perhaps a composite sump and propeller, but stick to the 8.5:1 compression) and put it on a 320 engine mount. I would maybe ditch the interior primer and just fay seal everything with a modified silicone polymer (apart from the 6061T6, which I'd still prime). I guess I'll have to build another one...


Last edited by tgmillso : 07-21-2018 at 05:37 PM.
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Old 07-21-2018, 01:02 PM
BillL BillL is offline
Join Date: Sep 2007
Location: Central IL
Posts: 4,552

Originally Posted by tgmillso View Post
I completed the weight and balance on my RV-7 today . . . . .

So it appears I built a bit of a pudgy sucker.

Pudgy, naaaah . . . Take off the paint and extra fuel and its pretty good!! With a pilot and 1/2 fuel, she will jump off the runway just after you get to full throttle!

1st Flight 1-27-18
Phase II 8-3-18
Repairman 11-15-18
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Old 07-21-2018, 05:49 PM
tgmillso tgmillso is offline
Join Date: Nov 2012
Location: Launceston, Tasmania, Australia
Posts: 633

Thanks Bill. Looking back at Van's statement on page 14-4 of the manual, it appears that they may have weighed the aircraft used in the example with no fuel on board instead of the unusable fuel, which we have to do here in Aus, so really I guess I'm only about 5lb over. I did try to keep the paint pretty light when I laid it down, with one layer of zinc phosphate etch then two medium coats of PU over that and just a couple of decals on top. I tried to think about weight the whole time I was building, however I also wanted to make something that would be useful, safe and would last the test of time.
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Old 07-21-2018, 07:13 PM
Finley Atherton Finley Atherton is offline
Join Date: Nov 2005
Posts: 705

Tom, I have a 9A and donít know much about the 7 but 3.68 gals unusable fuel sounds excessive.

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