Today's Message Index:
----------------------
1. 03:59 AM - Re: First flight (Ducati SS)
2. 10:07 AM - Fw: Blog- Fire recon (Larry Cottrell)
3. 05:30 PM - Re: First flight (Richard Girard)
4. 07:57 PM - Upgrading from 503 to 582 on Mark III (mike91911)
5. 09:40 PM - Re: Upgrading from 503 to 582 on Mark III (Richard Girard)
Message 1
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| Subject: | Re: First flight |
For the first flight of my Firefly I mounted a Hall airspeed indicator to the wing
strut. They are cheap and supposed to be accurate. I was able to cross check
with my panel ASI to verify readings. After verifying the panel ASI and plumbing
I removed the Hall unit. I have a full enclosure and therefor use a static
port mounted on the flat bottom of the nose cone.
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=404966#404966
Message 2
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| Subject: | Fwd: Blog- Fire recon |
---------- Forwarded message ----------
From: Larry Cottrell <lcottrell1020@gmail.com>
Subject: Blog- Fire recon
To:
http://highdesertflier.blogspot.com/
Here is an update on the range fires with a couple of videos.
Larry
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Message 3
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| Subject: | Re: First flight |
Rex, Congratulations! Wonderful news to hear of another Mk III X in the air.
You probably need to make some adjustments to the static port. You're
probably pulling a little vacuum at the port.
Could you have the float level set a little high in one carb so that it
spills a little gas out the overflow? Did you put in a fuel return line to
control the pressure going to the carbs?
Rick Girard
do not archive
On Fri, Jul 19, 2013 at 11:24 AM, Rex Rodebush <jrrodebush@gmail.com> wrote:
>
> Yesterday morning made my first flight in N553R! It's a Mark III X-tra
> with a 912S and a 3 blade Warp prop. It was one of the first Xtra's
> produced by TNK 13-14 years ago.
>
> Everything went pretty well but there are a couple of things that I would
> like to hear the group's comments on.
>
> The indicated stall was very repeatable at 55 MPH. This seems high to me
> but I did some quick glances at the GPS and I think my airspeed reads high.
> I will recheck this and may redo the static connection.
>
> I have a fuel pressure sender to the EIS and I noticed that when
> throttling down from say 5000 rpm to 3000 rpm I had a low fuel pressure
> (set at 2 psi) indication for only about a second. Then it came immediately
> back to around 4-5 psi. I did not have the electric boost pump on at the
> time. This happened several times on throttle back.
>
> I also noticed a fuel smell in the cockpit a couple of times which lasted
> about maybe 10 seconds. This seemed to occur when turning right? I
> checked all lined after the flight and there was no evidence of any leaks
> anywhere & all connections were tight. The tank vent is a ram air
> connection on the bottom of the cage, passenger side, about 3 inches from
> the landing gear socket. I'm thinking about relocating this.
>
> Any comments would be appreciated. Thanks guys.
>
> Rex Rodebush
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=404940#404940
>
>
--
Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be unhappy.
- Groucho Marx
Message 4
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| Subject: | Upgrading from 503 to 582 on Mark III |
Without considering the cost of the engine itself, what would I be looking at to
go from a 503 to a 582 on my Mark III? Also what would I have to change or add?
I know I have to add a radiator. I'm told I can use the same carbs and exhaust
(with a different y-pipe), same ignition and possibly the same gearbox and
prop. Engine mount? I'm sure I'm missing things here.
I'm trying to decide before I send out the 503 to be overhauled. I can get an overhauled
582 Blue Head for $3575 or a Grey Head for $2775 and he'd give me $1000
for trading in my 503.
Thoughts and opinions...
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=405000#405000
Message 5
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| Subject: | Re: Upgrading from 503 to 582 on Mark III |
If your overhauler will put the new ceramic seal on the rotary valve shaft
in the grey head you might as well save the money and go with it. The blue
head mods were primarily aimed at the powered parachute crowd to keep the
engine from flash cooling on long descents.
Get the 2 stroke Installation Manual and you can compare the dimensions of
the 503 mounting stud spacing and the 582. If you can find a good "C"
gearbox, you'll be happier with it than using a "B". If you use the "E" you
need to move the engine back 3/4" from the stock Kolb 582 mount plate to
get starter clearance to the back motor mount channel on the fuselage
weldment.
Contact me if you go with the 582 and I'll send you the article I wrote on
adapting the Honda Sabre radiator. Tested to 116 degrees on a straight 5000
foot climb and temps never out of the green. Costs less than 1/5 what the
Rotax dual radiator system costs.
Rick Girard
do not archive
On Sat, Jul 20, 2013 at 9:56 PM, mike91911 <ko1m.mike@gmail.com> wrote:
>
> Without considering the cost of the engine itself, what would I be looking
> at to go from a 503 to a 582 on my Mark III? Also what would I have to
> change or add? I know I have to add a radiator. I'm told I can use the same
> carbs and exhaust (with a different y-pipe), same ignition and possibly the
> same gearbox and prop. Engine mount? I'm sure I'm missing things here.
>
> I'm trying to decide before I send out the 503 to be overhauled. I can get
> an overhauled 582 Blue Head for $3575 or a Grey Head for $2775 and he'd
> give me $1000 for trading in my 503.
>
> Thoughts and opinions...
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=405000#405000
>
>
--
Zulu Delta
Mk IIIC
Thanks, Homer GBYM
It isn't necessary to have relatives in Kansas City in order to be unhappy.
- Groucho Marx
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