|
-
POSTING RULES

-
Donate yearly (please).
-
Advertise in here!
-
Today's Posts
|
Insert Pics
|

11-21-2018, 09:01 PM
|
|
|
|
Join Date: Jul 2018
Location: WACO
Posts: 3
|
|
4 seats in an RV-6?
I was talking to a friend today who said he saw an RV-6 or 7 at Oshkosh with two seats facing rear in the baggage compartment. The rear panel was moved back to allow more leg room and the owner claimed he could carry 4 adults with no weight issues. Has anyone else seen or heard about this? Is it legal to do this? The plane was a tail dragger. The pilot flew it into Oshkosh with 4 people on board.
|

11-21-2018, 09:45 PM
|
|
|
|
Join Date: May 2011
Location: Calgary, AB
Posts: 147
|
|
Based at CYBW
See this post. The plane lives just two hangers down from me.
http://www.vansairforce.com/communit...t=92828&page=2
__________________
Regards,
Darin
C-GULF RV-7 located in Calgary, AB
|

11-21-2018, 10:08 PM
|
|
|
|
Join Date: Jul 2018
Location: WACO
Posts: 3
|
|
RV6 2+2
Thank you so much for posting about the 4 seat RV6! I couldn't find anything about it by the usual search methods. I'm now wondering if I could make some sort of 3rd seat arrangement in my stock RV6. At least for a child.
|

11-22-2018, 06:52 AM
|
|
|
|
Join Date: Aug 2018
Location: 50-50 Wichita KS & Scottsdale AZ
Posts: 327
|
|
Cessna made a child seat for the baggage compartment of the c152, so it's not like it's completely unheard of.
I think the 2nd biggest issue would be figuring out the belt attach points.
The 1st biggest issue would be getting a kid to sit back there without blowing chunks, because it seems like visibility would be pretty limited 
|

11-22-2018, 07:54 AM
|
|
|
|
Join Date: Jun 2010
Location: Sunman, IN
Posts: 2,189
|
|
Umm...
"...The rear panel was moved back to allow more leg room and the owner claimed he could carry 4 adults with no weight issues..."
Really?
The specs on the -6 say empty weight should be around 965 lb with a gross around 1600 lbs.
The info card says 1400 lb empty and 2100 gross.
The -6 carries 38 gallons of gas, or about 228 lbs.
So, by the numbers, 2100-1400-228=472...472 lbs divided between 4 people. Two small adults and two small children.
At 1/2 tanks, 586 lb available so you are still at two small adults and a couple of children.
More importantly, consider how the structure handles loading that is now more than 30% over the original design numbers. Consider the dynamic gust loading as well. Wonder what Van thinks...
I guess it works fine...until it doesn't...
Sorry, I wouldn't put my family in there
__________________
Bob
Aerospace Engineer '88
RV-10
Structure - 90% Done
Cabin Top - Aaarrghhh...
EFII System 32 - Done
297 HP Barrett Hung
ShowPlanes Cowl with Skybolts Fitted - Beautiful
Wiring...
Dues+ Paid 2019,...Thanks DR+
|

11-22-2018, 11:43 AM
|
 |
|
|
Join Date: May 2005
Location: Savannah, GA
Posts: 1,301
|
|
Quote:
Originally Posted by rocketman1988
More importantly, consider how the structure handles loading that is now more than 30% over the original design numbers. Consider the dynamic gust loading as well. Wonder what Van thinks...
|
And don't forget landing gear loads...
__________________
RV-9A at KSAV (Savannah, GA; dual G3X Touch with autopilot, GTN650, GTX330ES, GDL52 ADSB-In)
Previously RV-4, RV-8, RV-8A, AirCam, Cessna 175
ATP CFII PhD, so I have no excuses when I screw up
2020 dues slightly overpaid
Retired - "They used to pay me to be good, now I'm good for nothing."
|

11-22-2018, 12:08 PM
|
|
|
|
Join Date: Jun 2010
Location: Sunman, IN
Posts: 2,189
|
|
yep...
I am not opposed to putting the experiment in experimental, heaven knows, my-10 has tons of mods...however...this is messing with the core design of the aircraft.
It's one thing if the builder has the knowledge and capability to make a mod like this and be reasonably assured that the design is still sound. Completely another to use TLAR Engineering and then ask 3 other souls to bet their lives on it...
Disclaimer: I do not know the builder or his background, he may very well have properly engineered this mod. In that case, good for him. I would, however, still question the safety of the passengers in the event of an accident...
__________________
Bob
Aerospace Engineer '88
RV-10
Structure - 90% Done
Cabin Top - Aaarrghhh...
EFII System 32 - Done
297 HP Barrett Hung
ShowPlanes Cowl with Skybolts Fitted - Beautiful
Wiring...
Dues+ Paid 2019,...Thanks DR+
|

11-22-2018, 12:18 PM
|
|
|
|
Join Date: Oct 2013
Location: Schaumburg, IL
Posts: 5,298
|
|
In my 6A (FP prop w/ 20# crush plate), I can't get more than 50#'s back there without hitting the aft CG limit and pitch control getting unpleasant in landing operations. You would need a lot more weight up front to allow this arrangement, further pushing past the max gross. I guess this would explain the extra 300 #'s of empty weight beyond normal.
Larry
Quote:
Originally Posted by rocketman1988
"...The rear panel was moved back to allow more leg room and the owner claimed he could carry 4 adults with no weight issues..."
Really?
The specs on the -6 say empty weight should be around 965 lb with a gross around 1600 lbs.
The info card says 1400 lb empty and 2100 gross.
The -6 carries 38 gallons of gas, or about 228 lbs.
So, by the numbers, 2100-1400-228=472...472 lbs divided between 4 people. Two small adults and two small children.
At 1/2 tanks, 586 lb available so you are still at two small adults and a couple of children.
More importantly, consider how the structure handles loading that is now more than 30% over the original design numbers. Consider the dynamic gust loading as well. Wonder what Van thinks...
I guess it works fine...until it doesn't...
Sorry, I wouldn't put my family in there
|
__________________
N64LR - RV-6A / IO-320, Flying as of 8/2015
N11LR - RV-10, Flying as of 12/2019
Last edited by lr172 : 11-22-2018 at 12:22 PM.
|

11-22-2018, 03:27 PM
|
 |
|
|
Join Date: Jan 2005
Location: SC
Posts: 12,887
|
|
Quote:
Originally Posted by Airnord05
Thank you so much for posting about the 4 seat RV6! I couldn't find anything about it by the usual search methods. I'm now wondering if I could make some sort of 3rd seat arrangement in my stock RV6. At least for a child.
|
You mean like this?
Our son has been flying with us since before he was born.
We bought a set of Peltor Child headsets and they worked great.
The first year he was in a snuggy.

(Click to enlarge)
As he grew, he was relegated to the baggage compartment:
At around five, he outgrew the baggage compartment and moved up front, along with his car seat.
His headsets are RA250 Child's Headset that I sent off to Headsets Inc. and had converted to ANR.
The real trick was finding a booster seat that would fit in the baggage compartment and in the right seat without interfering with the controls.
At five and a half he no longer wants to ride in the booster seat (in the plane) and two extra seat cushions get him high enough to see over the side.
__________________
Bill R.
RV-9 (Yes, it's a dragon tail)
O-360 w/ dual P-mags
Build the plane you want, not the plane others want you to build!
SC86 - Easley, SC
www.repucci.com/bill/baf.html
Last edited by N941WR : 11-22-2018 at 03:39 PM.
|

11-22-2018, 03:44 PM
|
|
|
|
Join Date: Feb 2008
Location: Calgary, Alberta
Posts: 1,005
|
|
The 4 seat RV6 C-GZII has many modifications to it that make more like a fat Harmon Rocket than stock RV.
.032 wing skins thru out, .040 side cabin panels, stretch of the fuselage, strengthened longerons, HR style titanium landing gear, strengthened mount, to mention the basics.
There are a few Super 6's around, this is the only one with this seating arrangement as far as I know. It's control feel is very RV like but a bit heavier & more stable. The owner's wife flies aerobatics in it!
& yes, they are small people.
__________________
Ralph
built a few RVs, rebuilt a few more, hot rodded some, & maintained/updated a bunch more
|
| Thread Tools |
Search this Thread |
|
|
|
| Display Modes |
Linear Mode
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
All times are GMT -6. The time now is 08:51 AM.
|