Today's Message Index:
----------------------
1. 12:52 AM - Re: N701TD back in the air again (briefly) (Richard McLachlan)
2. 07:02 AM - Re: N701TD back in the air again (briefly) (Kelly Meiste)
3. 07:17 AM - Re: N701TD back in the air again (briefly) (David Alberti)
4. 12:40 PM - Re: Paint Scheme Template (Mike Fortunato)
5. 04:32 PM - Rotax 912 Carb drain (Leo Corbalis)
6. 05:34 PM - 601 XL Spar inserts/Spar jig assembly (TomLazear@netscape.net)
7. 09:27 PM - Paint Type (Fred Kirkland)
8. 09:27 PM - Re: N701TD back in the air again (briefly) IMPORTANT. (Gary Gower)
9. 09:55 PM - Re: N701TD back in the air again (briefly) IMPORTANT. (Jon Croke)
10. 10:04 PM - 701 oil can X inst (JERICKSON03E@AOL.COM)
11. 10:17 PM - Re: Paint Type (Brandon Tucker)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: N701TD back in the air again (briefly) |
--> Zenith-List message posted by: "Richard McLachlan" <richard@rodsley.net>
This exact same problem caused the crash of a brand new 601HD in the UK a
couple of years back. At the time it was attributed to the use of mogas
instead of avgas causing vapour lock. Luckily nobody was hurt though.
----- Original Message -----
From: "Mike Sinclair" <mike.sinclair@att.net>
Subject: Re: Zenith-List: N701TD back in the air again (briefly)
> --> Zenith-List message posted by: Mike Sinclair <mike.sinclair@att.net>
>
> > Jon, Ken, Cy, and any others who reply before all the e-mails come
through.
>
> Thanks Guys! I suppose this is the "egg on my face" part of experimental
and
> feel extremely fortunate that it wasn't something worse. Now that you have
> pointed out where my error probably is, and now that my memory has been
jogged a
> bit and I do vagely remember something about the drains on the carbs not
being
> extended (if I remember right, I didn't really care for the position they
were
> vented earlier, but due to Rotax instructions I did not change, then
forgot
> about it and when I looked again, jumped right in and did it anyway). I
feel
> pretty stupid, and very lucky about having a safe outcome of my test
flight. I
> am very fortunate to a part of a community that will pass on learned
knowledge
> that will hopefully prevent accidents, injuries, and loss of life, and
hope that
> as I learn and progress that I might also be able to help others avoid
some of
> these mistakes. It has been said that the only dumb question is the one
that is
> not asked. I think there should also be something said about good advice
that is
> ignored. I do appreciate all replies to any question that I have asked,
and not
> all are ignored, some are just filed away for future reference. This one
will be
> acted upon immediately. Thanks again for the quick response on my error on
the
> tubes.
>
> Mike Sinclair
>
>
> >
> >
> > Did you extend the bowl drains on the carb? Rotax is very specific that
> > they should not be extended.
> >
> > Cy Galley
> > EAA Safety Programs Editor
> > Always looking for ideas and articles for EAA Sport Pilot
>
>
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: N701TD back in the air again (briefly) |
--> Zenith-List message posted by: "Kelly Meiste" <kellymeiste@jcwifi.com>
Will look at using the idea of inserting into a larger tube to vent any
possible overflow overboard though.
++++++++++++++++++++++++++++++++++++++++++++++++++
Mike,
I had the same issue with my plane/carb tubes. It ran fine on the ground but
as soon as I got to my airfields pattern alt my engine (stratus using same
carbs as you) started running very poorly. I managed an emergency landing
on a cross wind runway. I then tried inserting my vent tubes into larger
3/8" dia tubes and had the same problem. Finally I tried 1/2" tubing and
this seems to work fine at least on my plane, your 912 may be different.
Kelly Meiste
601 HD Stratus - 115 hour
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | N701TD back in the air again (briefly) |
--> Zenith-List message posted by: "David Alberti" <daberti@sbcglobal.net>
The small tubes off the side of the carbs are not simple overflow tubes.
They balance the air pressure above the fuel in the bowls with the air
pressure that the intake air side of the carb sees. Any severe difference
in pressure between the two alters the fuel delivery. The tubes are
connected to the Rotax airbox on the ULS models.
Mike Stated:
take off just about like previous with rpm a little low, but on climb out
the engine
started getting a little rougher and rpm was dropping. eventually the rpm
was at
4300. Once I got to about 500 feet and started playing with the throttle the
rpm
dropped back under 4000 and wouldn't come up again.
Mike Sinclair N701TD grounded for now until engine will produce power in
both
takeoff attitude and level, for an suitable period of time in each.
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: Paint Scheme Template |
--> Zenith-List message posted by: Mike Fortunato <rsq2424@yahoo.com>
> Does anyone have a digital file of a Zodiac 601
> template for trying different paint schemes?
There's one on ZAC's web site somewhere. Can't recall
the exact location (maybe in the builder's section),
but I know they're there.
Mike F.
601XL
Stay connected, organized, and protected. Take the tour:
http://tour.mail.yahoo.com/mailtour.html
Message 5
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Rotax 912 Carb drain |
--> Zenith-List message posted by: "Leo Corbalis" <leocorbalis@sbcglobal.net>
----- Original Message -----
From: "David Alberti" <daberti@sbcglobal.net>
Subject: RE: Zenith-List: N701TD back in the air again (briefly)
I used a "tee" from a model plane hobby shop. The short end had fuel line
that ended at the carb outlet and was tied to the origonal drain tube, the
origonal drain tube went to the base of the "T" and the other end went to
the bottom of the cowl. I told George Pinneo about it and he reported that
the Rotax 912 went ape at 5 or 6000 ft. I hadn't flown yet so I pulled mine
off and got 2 plastic syringes which I mounted so the drain tube hung about
half way down them. A long tube went to the bottom of the cowl. This worked
fine.
Later I got a small model fuel fitting that I shoved thru the rubber
next to the Air Cleaner (H&N). I drilled a 1/16 hole thru the rubber and
connected the drain line to the ar inside the air cleaner. Hasn't leaked yet
as far as I can tell. Runs fine for a couple of years. Having lost a canopy
in flight, I question the value of the carb trays. The air blast is
formidable! I mounted a radio shack remote thermometer inside the lower
cowl front inlet and another on the back of the air cleaner. ZERO
temperature differience. The wind blows in and the wind blows out.
Leo Corbalis
601 HDS TD
Message 6
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | 601 XL Spar inserts/Spar jig assembly |
--> Zenith-List message posted by: TomLazear@netscape.net
I need a the spar inserts/jig assembly 601XL, anyone have an assembly they want
to sell?
You can contact me off the list at jtlazer@yahoo.com
Tom Lazear
Switch to Netscape Internet Service.
As low as $9.95 a month -- Sign up today at http://isp.netscape.com/register
Netscape. Just the Net You Need.
New! Netscape Toolbar for Internet Explorer
Search from anywhere on the Web and block those annoying pop-ups.
Download now at http://channels.netscape.com/ns/search/install.jsp
Message 7
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Zenith-List message posted by: "Fred Kirkland" <fdk0154.tx@cox.net>
I'm sure this question has been asked many times already. I am looking for
the paint. What kinds of paints have been used by you builders?
I'm looking at Stits Aerothan but I was also wondering about automotive
paint.
What do I need to do to the aluminum in preparation to paint it so it will
stick?
Any suggestions would be appreciated.
Fred
Message 8
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: N701TD back in the air again (briefly) IMPORTANT. |
--> Zenith-List message posted by: Gary Gower <ggower_99@yahoo.com>
Mike and Jon,
There are about 30 912's engines in diferent airplanes flying in my club and
in other close clubs for several years already.
All the vent tubes are as Rotax instructions, and there are working as they should,
no gas driping or gas smell in flight or when shut down, so I dont think
is something to bother...
In all the Rotax seminars we have assited (there is always someone of the club
there) They advice Seriously about not modifying the vent hoses in all the seminars
always. So I think is something important and largely reserched by Rotax.
Also a "mod" made by several builders once in a while that always gives
problems.
My advice is not to "play" with this matter. I am sure that the Rotax Research
Team should come with another solution if there was some. My plane and life
is more important.
The driping plates I think are the only solution, any other "invention" will make
any of us a "professional" Rotax Test Pilot as Mike was... Do you have the
experience and courage? I dont.
Saludos
Gary Gower.
PS, Some things have to be "as the book".
Mike Sinclair <mike.sinclair@att.net> wrote:
--> Zenith-List message posted by: Mike Sinclair
Jon
My tubes were considerably longer, and exited at the bottom center of the
firewall. Not actually below the fuselage in the slipstream, but probably close
enough to the air exit from the lower cowl that they were affected by a pressure
difference. Cannot tell you whether it was a positive or negative pressure
though. Will look at using the idea of inserting into a larger tube to vent any
possible overflow overboard though.
Mike
Jon Croke wrote:
> --> Zenith-List message posted by: "Jon Croke"
>
> I am curious, please report if your tubes were actually in the slipstream,
> or were they just longer than usual. I was of the belief that if kept
> inside the cowl, there shoudl be no problem. But your feedback on this will
> be invaluable to us!
Message 9
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: N701TD back in the air again (briefly) IMPORTANT. |
--> Zenith-List message posted by: "Jon Croke" <jon@joncroke.com>
Gary,
Good point.
People often ask: when does gas come out of the tube? I say that I have
only heard that IF the float chamber would overflow (in case the float wont
float and needle stays open) would there ever be dripping gas. You have
confirmed that this is not a common situation. I wonder if gas has EVER
exited out this tube in their actual experience (please come forward with
your experience). So point well taken... not worth extending the tube at
all and maybe just LEAVE IT ALONE.
Jon
> --> Zenith-List message posted by: Gary Gower <ggower_99@yahoo.com>
>
> Mike and Jon,
>
> There are about 30 912's engines in diferent airplanes flying in my
> club and in other close clubs for several years already.
>
> All the vent tubes are as Rotax instructions, and there are working as
> they should, no gas driping or gas smell in flight or when shut down, so
> I dont think is something to bother...
>
>
Message 10
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | 701 oil can X inst |
--> Zenith-List message posted by: JERICKSON03E@aol.com
I'm at the point of installing the std L X's on the rear fuselage side panels.
Question is do the top & bottom panels need the X'x as well?
Just wondering what other 701 builders have found.
Jerry
Message 11
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
--> Zenith-List message posted by: Brandon Tucker <btucke73@yahoo.com>
Fred,
Check out this month's edition of Kit Planes
magazine. There is an article about painting that
might be helpful. Loehle aircraft has a new paint
product that sounds pretty good in the magazine. I am
using a good quality PPG automotive one coat urethane.
It works great for me, but others have their
preferences. As long as you buy a good quality paint,
and avoid cheaper alternatives, I think that surface
preparation is the key to a long lasting paint job.
A lot of guys on this list have their own
preparation techniques, but the most widely accepted
aluminum preparation system is etching the aluminum
with alumaprep, and Alodining it prior to paint.
These products can be purchased from Aircraft Spruce
for less than $20 a gallon. The process will seem a
little tedius, but it yeilds the best possible paint
adhesion.
R/
Brandon Tucker
601 hds
Just painted the tail
Stay connected, organized, and protected. Take the tour:
http://tour.mail.yahoo.com/mailtour.html
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|