Today's Message Index:
----------------------
1. 09:26 AM - Re: RV4 ventilation (Moore, Warren)
2. 12:46 PM - Re: RV4 ventilation (Steve Mullins)
3. 01:33 PM - Re: RV4 ventilation (rob ray)
4. 01:35 PM - Re: RV4 ventilation (rob ray)
Message 1
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--> RV4-List message posted by: "Moore, Warren" <Warren.Moore@TidelandsOil.com>
Brian, I put a naca vent (from Van's) on the right side of the fuse. as far
forward as possible and just under the cowl cheek. ran a scat tube to the
lower right side of the instrument panel to an alum. vent....it works just
ok. Also installed a naca vent on the underside of the the right wing,
(like on the RV8's) to a scat tube, to a large 3" vent mounted just forward
of the rear stick, for the rear passenger.....works great! also put a tee
in the rear vent scat tube and ran a 1-1/4 in scat tube to the front seat
(thur the wing spar where the plans show a routing for rear seat heat (I
have no rear seat heat). to a small vent mounted down low by the fuel
selector. When flying solo, I can reach back, close the rear seat vent and
open the front one full, just works great! Still get a lot of air in front
and back when both are open.
I working now on a way to hold my canopy open about 3 inches for
taxi....don't care how many vents you have, on ground its just hot under a
bubble canopy.
Warren Moore
rv4 n223wm, 35 hrs.
-----Original Message-----
From: Brian Vickers [mailto:brianvic@msn.com]
Sent: Monday, May 29, 2006 10:27 AM
Subject: RV4-List: RV4 ventilation
--> RV4-List message posted by: "Brian Vickers" <brianvic@msn.com>
Hi all,
I am procrastinating over installation of cockpit ventilation. I walk the
rows of completed RV4's at fly-ins, etc. and see many different
configurations for getting air into the cockpit. Everything from holes in
the wing root fairings, NACA inlets placed nearly everywhere, to pop-outs.
Does anyone out there have a system that has worked well for them? I'm also
interested in designs and inlet locations that don't work. I am building a
very simple, light weight manual bird. Thanks for your help in advance.
Very sincerely,
Brian N. Vickers, MAI
RPA
Real Property Analysis, LLC
P.O. Box 11790
Bainbridge Island, WA 98110
Ph 206-780-9814
Fx 206-842-2496
Message 2
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--> RV4-List message posted by: "Steve Mullins" <smullins@drury.edu>
Brian and all,
On your holding your canopy open 3 " while taxiing!!! I hope I haven't
committed some horrible sin, but I have been taxiing my RV 4 with the canopy
open for 4 years with no problems.
Steven D. Mullins
Associate Professor of Economics
Co-director 06-07 Convocation Series: http://www.drury.edu/post911
"Preparing ethical leaders for the global business community"
The Breech School of Business Administration
Drury University
417.889.5609 (Home)
417.873.7299 (Office)
-----Original Message-----
From: owner-rv4-list-server@matronics.com
[mailto:owner-rv4-list-server@matronics.com] On Behalf Of Moore, Warren
Sent: Tuesday, May 30, 2006 11:25 AM
Subject: RE: RV4-List: RV4 ventilation
--> RV4-List message posted by: "Moore, Warren"
--> <Warren.Moore@TidelandsOil.com>
Brian, I put a naca vent (from Van's) on the right side of the fuse. as far
forward as possible and just under the cowl cheek. ran a scat tube to the
lower right side of the instrument panel to an alum. vent....it works just
ok. Also installed a naca vent on the underside of the the right wing,
(like on the RV8's) to a scat tube, to a large 3" vent mounted just forward
of the rear stick, for the rear passenger.....works great! also put a tee
in the rear vent scat tube and ran a 1-1/4 in scat tube to the front seat
(thur the wing spar where the plans show a routing for rear seat heat (I
have no rear seat heat). to a small vent mounted down low by the fuel
selector. When flying solo, I can reach back, close the rear seat vent and
open the front one full, just works great! Still get a lot of air in front
and back when both are open.
I working now on a way to hold my canopy open about 3 inches for
taxi....don't care how many vents you have, on ground its just hot under a
bubble canopy.
Warren Moore
rv4 n223wm, 35 hrs.
-----Original Message-----
From: Brian Vickers [mailto:brianvic@msn.com]
Sent: Monday, May 29, 2006 10:27 AM
Subject: RV4-List: RV4 ventilation
--> RV4-List message posted by: "Brian Vickers" <brianvic@msn.com>
Hi all,
I am procrastinating over installation of cockpit ventilation. I walk the
rows of completed RV4's at fly-ins, etc. and see many different
configurations for getting air into the cockpit. Everything from holes in
the wing root fairings, NACA inlets placed nearly everywhere, to pop-outs.
Does anyone out there have a system that has worked well for them? I'm also
interested in designs and inlet locations that don't work. I am building a
very simple, light weight manual bird. Thanks for your help in advance.
Very sincerely,
Brian N. Vickers, MAI
RPA
Real Property Analysis, LLC
P.O. Box 11790
Bainbridge Island, WA 98110
Ph 206-780-9814
Fx 206-842-2496
Message 3
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--> RV4-List message posted by: rob ray <smokyray@yahoo.com>
Brian,
All of the previous suggestions work, I have one of each! Over the years I
have tried everything including bypassing my heat muff and running baffle air
into the cockpit. Works fine above 5K but hot down low. Here is what worked and
improved what I had...
An aeronautical engineer looked at my airplane and told me the two lowest pressure
and highest pressure areas, the canopy rail and right in front of the
leading edge of the wing being very low. The bottom of the rear part of the cowl
cheek, fuselage sides above the landing gear and under the wing, being very
high. So, I installed and really like two of Larry Vettermans pop-out round vents,
one right above the throttle quadrant and the other in front of the back
seat on the fuselage 8" below the canopy rail. I also have three NACA scoops,
one on the front lower left fuselage which like Warren's works well. I also installed
two on the canopy rail before I knew better. One thing that helped both
of them was placing VG's in front of them, 50% improvement in airflow. Hey,
I live where it is hot year-round!
However, the absolute best modification was drilling holes around my baggage
door bulkhead to allow the air to draft out the rear fuselage. "Sucking the
air out" of the cockpit is not a new idea, look at Christen Eagles. They have
reverse NACA scoops. Rear seat passengers tell me they can lay their hands over
the holes and feel the suction at cruise speed.
The aft part of the canopy is very high pressure and a rear facing vent on
the lower part of the back of the canopy fairing on one RV4 reported very good
airflow into the cockpit. He said he got the idea off a T-18. He had a choke
cable to open and close the small door.
Another simple fix to summer heat is to use the RV4's superior performance
and fly above 5K if you go anywhere.
For some great ideas of the canopy taxi position hold-back devices, go to Doug Reeves website http://www.vansairforce.com/community/showthread.php?t=7769&page=1&pp=10
You will find alot of great pictures of canopy taxi positions installations
(including mine)...
Good Luck!
RR
"Moore, Warren" <Warren.Moore@tidelandsoil.com> wrote:
--> RV4-List message posted by: "Moore, Warren"
Brian, I put a naca vent (from Van's) on the right side of the fuse. as far
forward as possible and just under the cowl cheek. ran a scat tube to the
lower right side of the instrument panel to an alum. vent....it works just
ok. Also installed a naca vent on the underside of the the right wing,
(like on the RV8's) to a scat tube, to a large 3" vent mounted just forward
of the rear stick, for the rear passenger.....works great! also put a tee
in the rear vent scat tube and ran a 1-1/4 in scat tube to the front seat
(thur the wing spar where the plans show a routing for rear seat heat (I
have no rear seat heat). to a small vent mounted down low by the fuel
selector. When flying solo, I can reach back, close the rear seat vent and
open the front one full, just works great! Still get a lot of air in front
and back when both are open.
I working now on a way to hold my canopy open about 3 inches for
taxi....don't care how many vents you have, on ground its just hot under a
bubble canopy.
Warren Moore
rv4 n223wm, 35 hrs.
-----Original Message-----
From: Brian Vickers [mailto:brianvic@msn.com]
Sent: Monday, May 29, 2006 10:27 AM
Subject: RV4-List: RV4 ventilation
--> RV4-List message posted by: "Brian Vickers"
Hi all,
I am procrastinating over installation of cockpit ventilation. I walk the
rows of completed RV4's at fly-ins, etc. and see many different
configurations for getting air into the cockpit. Everything from holes in
the wing root fairings, NACA inlets placed nearly everywhere, to pop-outs.
Does anyone out there have a system that has worked well for them? I'm also
interested in designs and inlet locations that don't work. I am building a
very simple, light weight manual bird. Thanks for your help in advance.
Very sincerely,
Brian N. Vickers, MAI
RPA
Real Property Analysis, LLC
P.O. Box 11790
Bainbridge Island, WA 98110
Ph 206-780-9814
Fx 206-842-2496
---------------------------------
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with Voice.
Message 4
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--> RV4-List message posted by: rob ray <smokyray@yahoo.com>
Again, Here are some great pics...
RR
http://www.vansairforce.com/community/showthread.php?t=7769&page=1&pp=10
Steve Mullins <smullins@drury.edu> wrote:
--> RV4-List message posted by: "Steve Mullins"
Brian and all,
On your holding your canopy open 3 " while taxiing!!! I hope I haven't
committed some horrible sin, but I have been taxiing my RV 4 with the canopy
open for 4 years with no problems.
Steven D. Mullins
Associate Professor of Economics
Co-director 06-07 Convocation Series: http://www.drury.edu/post911
"Preparing ethical leaders for the global business community"
The Breech School of Business Administration
Drury University
417.889.5609 (Home)
417.873.7299 (Office)
-----Original Message-----
From: owner-rv4-list-server@matronics.com
[mailto:owner-rv4-list-server@matronics.com] On Behalf Of Moore, Warren
Sent: Tuesday, May 30, 2006 11:25 AM
Subject: RE: RV4-List: RV4 ventilation
--> RV4-List message posted by: "Moore, Warren"
-->
Brian, I put a naca vent (from Van's) on the right side of the fuse. as far
forward as possible and just under the cowl cheek. ran a scat tube to the
lower right side of the instrument panel to an alum. vent....it works just
ok. Also installed a naca vent on the underside of the the right wing,
(like on the RV8's) to a scat tube, to a large 3" vent mounted just forward
of the rear stick, for the rear passenger.....works great! also put a tee
in the rear vent scat tube and ran a 1-1/4 in scat tube to the front seat
(thur the wing spar where the plans show a routing for rear seat heat (I
have no rear seat heat). to a small vent mounted down low by the fuel
selector. When flying solo, I can reach back, close the rear seat vent and
open the front one full, just works great! Still get a lot of air in front
and back when both are open.
I working now on a way to hold my canopy open about 3 inches for
taxi....don't care how many vents you have, on ground its just hot under a
bubble canopy.
Warren Moore
rv4 n223wm, 35 hrs.
-----Original Message-----
From: Brian Vickers [mailto:brianvic@msn.com]
Sent: Monday, May 29, 2006 10:27 AM
Subject: RV4-List: RV4 ventilation
--> RV4-List message posted by: "Brian Vickers"
Hi all,
I am procrastinating over installation of cockpit ventilation. I walk the
rows of completed RV4's at fly-ins, etc. and see many different
configurations for getting air into the cockpit. Everything from holes in
the wing root fairings, NACA inlets placed nearly everywhere, to pop-outs.
Does anyone out there have a system that has worked well for them? I'm also
interested in designs and inlet locations that don't work. I am building a
very simple, light weight manual bird. Thanks for your help in advance.
Very sincerely,
Brian N. Vickers, MAI
RPA
Real Property Analysis, LLC
P.O. Box 11790
Bainbridge Island, WA 98110
Ph 206-780-9814
Fx 206-842-2496
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