Today's Message Index:
----------------------
1. 04:35 AM - Rear rudder pedals (Bob & Toodie Marshall)
2. 06:36 AM - cockpit air (Frazier, Vincent A)
3. 07:22 AM - Re: cockpit air (Michael W Stewart)
4. 07:27 AM - Re: cockpit cooling (Rob Ray)
5. 05:18 PM - Performance Engines; progress report (Larry James)
Message 1
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| Subject: | Rear rudder pedals |
Hello Andrew, I am the fellow with that great rocket in that valley
northwest of Reno who has the nifty fold down rear pedals, Will be happy
to send you pics, if your handy with a torch they can be built in a few
hours. Contact me off list at rtmarshall@gotsky.com. If you know of
anyone looking for a great rocket, the ship is up for sale. Considering
the dollar weakness it would be a great deal even with the off shore
shipping. See www.Barnstormers.com look under Harmon Rocket for
details. Bob Marshall
Message 2
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I emailed Mark and John to ask about putting a 2" hole in the spar web
to the right of the stick. They both said that the hole would be OK
structurally but that there are several caveats. You can't hit the spar
spreader bars, the flange strips, obviously can't put it in line with
the floor ribs, and can't interfere with the aileron pushtube. I figure
that I'd be building a custom duct out of fiberglass somehow.
So, has anyone actually run ductwork up through the spar in this manner?
We'd all like to hear a report and see photos if possible.
thx,
Vince
Message 3
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While not the same as you requested, its in the same idea ballpark.
Here is how I got rear heat in the Super 8.
http://mstewart.net/super8/rearheat/index.htm
And while it says "This has neither been tested nor recommended. " That
s
information. I have 600 hours on her now. is has neither been tested no
r
recommended.
Mike
"Frazier, Vincent
A"
<VFrazier@usi.edu
To
> <rocket-list@matronics.com>
Sent by:
cc
owner-rocket-list
-server@matronics Subj
ect
.com Rocket-List: cockpit air
05/28/2008 09:31
AM
Please respond to
rocket-list@matro
nics.com
du>
I emailed Mark and John to ask about putting a 2" hole in the spar web
to the right of the stick. They both said that the hole would be OK
structurally but that there are several caveats. You can't hit the spa
r
spreader bars, the flange strips, obviously can't put it in line with
the floor ribs, and can't interfere with the aileron pushtube. I figur
e
that I'd be building a custom duct out of fiberglass somehow.
So, has anyone actually run ductwork up through the spar in this manner
?
We'd all like to hear a report and see photos if possible.
thx,
Vince
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Message 4
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| Subject: | Re: cockpit cooling |
Jim,
The RV4's under wing NACA ducts were about mid-fuel tank 6" behind the spar. Both
SCAT tubes entered the fuselage under the floorboard aft of the spar. For front
cockpit air he simply built a periscope/snorkel out of the floorboard with
an eyeball vent on the end of it(slightly in the way for rear seat pax). You
could point it forward or aft, he had it forward. The rear duct had an eyeball
vent in the rear stickwell.
My HR2's fuselage NACA ducts work very well with no warm air issues although they
are AOA critical. At approach airspeeds they are almost ineffective. At cruise
however, Hurricane warnings are in effect:) Personally, I think the underwing
vents are a great idea and hide any holes under the bottom, free from rain,
and detracting from the beauty of the HR2. Mine however were easiest for me
on an already flying airplane...
Ronnie said he could install them for you in one day, need a FL vacation?
RR
--- On Tue, 5/27/08, Jim Stone <jrstone@insightbb.com> wrote:
> From: Jim Stone <jrstone@insightbb.com>
> Subject: Re: Rocket-List: cockpit cooling
> To: rocket-list@matronics.com
> Date: Tuesday, May 27, 2008, 9:33 PM
> <jrstone@insightbb.com>
>
> Hey Rob,
> Doesn't that snorkel pick up exhaust fumes?
> Jim
> ----- Original Message -----
> From: "Rob Ray" <smokyray@yahoo.com>
> To: <rocket-list@matronics.com>
> Sent: Tuesday, May 27, 2008 9:58 PM
> Subject: Re: Rocket-List: cockpit cooling
>
>
> <smokyray@yahoo.com>
> >
> > Jim/Vince,
> >
> > No arguments here, I live in Central FL where humidity
> is manufactured and
> > exported! I inspected an RV4 for a friend recently
> that had the under wing
> > NACA ducts (1 each side) for cockpit cooling. The
> right side went to a
> > rear eyeball vent in the stickwell, the front had a
> unique snorkel duct
> > that pointed forward from just aft of the main spar.
> > The airflow inflight was excellent, equal to or better
> than my setup and
> > even worked on the ground. Also unique was his Grob
> Sailplane/Extra 300
> > canopy sliding vent in the front cockpit ala Tony
> Bingelis' RV3. It also
> > worked very well.
> >
> > Very Cool :)
> >
> > RR
> >
> > --- On Mon, 5/26/08, Frazier, Vincent A
> <VFrazier@usi.edu> wrote:
> > From: Frazier, Vincent A <VFrazier@usi.edu>
> > Subject: Rocket-List: cockpit cooling
> > To: rocket-list@matronics.com
> > Date: Monday, May 26, 2008, 8:51 PM
> >
> > Jim, I haven't had Vinces problem on my HR2. My AE
> buddy stressed
> > location was
> > critical in getting large volumes of cool air, which I
> do.
> > RR
> >
> > Rob and others,
> >
> > I certainly don't dispute that the wingroot vents
> get plenty of air. They
> > do. So do the NACA vents on the fuselage sides.
> However, both of those
> > locations are 10+ degrees F hotter than the NACA scoop
> under the wing. 10
> > degrees doesn't sound like much, but when it's
> already 85F and 90%
> > humidity, it is miserable.
> >
> > Having just returned from vacation and a cross country
> drive from Los
> > Angeles
> > to Indiana, via Death Valley where it was a
> comfortable 110F and <10%
> > humidity, I think I can safely assume that it is the
> humidity that makes
> > Indiana and Kentucky uncomfortable compared to
> anywhere in the western
> > U.S. or
> > Canada. It gets blazing hot out west, but without the
> humidity, it's
> > nowhere near as uncomfortable as it gets here.
> >
> > My whole point here is that the underwing NACA scoops
> are measurably
> > cooler...
> > so why not enjoy the cooler air instead of the hot
> fuselage air if you're
> > making a change or building anew. It's a mistake
> that I won't make
> > again!
> >
> > Vince
> >
> >
> >
> >
> >
> >
> >
> >
>
>
Message 5
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| Subject: | Performance Engines; progress report |
Ron Munson at Performance Engines committed to sending me an email outlining
our discussed agreement and repaying my deposit in three payments spaced two
weeks apart. I never received the email; and did receive the first payment
as agreed.
Larry E. James
Bellevue, WA
Super Decathlon
Rocket (under construction)
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