boo

Hi,

I am considering upgrading my starter form the Sullivan Hi Torque unit I
have atm and I wondered what the groups collective opinions are ? Are
the planetary geared starters like the Tahmazo 180 on the Singapoer
Hobby Supplies page and the Kavan geared starter and the cheapo SMC
planetary geared starter all the same with regards to torque and quality
or are they different units ?

My other option is to get a Sullivan Dynatron, how does this compare in
starting torque with the planetary geared starters ? I hear that the
switch on the Dynatron has a habit of welding itself shut if used on
24V, is there a simple cure for this ?

Thanks,

--
Boo

pé reivers

I use a geared Kavan, taped to 12 Nicad cells, so I have no wires to worry
about. This unit is extremely strong, and starts all my engines, even the
2.15 OS BGX, which is my largest glow engine so far.
Gas engines are much softer on the starter. This starter burns your skin
when you try to hold the starter cone without gripping real hard

The Sullivan Hi-torque spins faster, but cannot nearly deliver the same
torque

--
Rgds,
Pé
From Arcen, South-East in the Netherlands
preivers
@
mvvs-nl.com
http://mvvs-nl.com/
http://www.prme.nl

normen strobel

The Sullivan Dynatron is a great Starter on 12v. I attempted to run it on
24v to start a large engine, but like you said the switch welded. The
easiest way to fix this is with an automotive 12v relay. But I didn't like
running it at 24v because it spun way too fast. It would spin the engine
faster than it would fire so you didn't realize the engine was running. You
could buy the Miller RC gear reduction which would slow it down and add a
lot of torque, but at this point you would have spent more than if you would
have just bought the Megatron in the first place.

I've tested some of those Planatery geared starters at airshows and was very
impressed. I can't remember the name of it, but it was able to start a 180
engine.

--
Normen Strobel
nstrobel@zoominternet.nospam.net


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jr

sticks that the car guys use for powering their motors. It is amazing the
difference that the extra voltage makes. I was able to start a friends Saito
1.80 with no problem with my Sullivan starter, on a charge that was not
fresh. That was after his Sullivan hooked to a fresh gel cell would not
turn it over. JR
"Normen Strobel" <nstrobel@nospam.zoominternet.net> wrote in message news:3f520637_6@corp.newsgroups.com...

normen strobel

Actually I mispoke when I said I used 12v and 24v, I use the Sullivan
Battery Power Pac which holds 12 Nicad Cells. So I used it at 14.4v and
28.8v The nicads definitely give more oomph than the gel cells. I used the
Shark 1500mah battery packs which were about $8 a piece. When you take them
apart they have 2 cardboard tubes holding 3 cells each. So the tubes just
slipped into the Power Pac real easily.

Unfortunately the Nicad doesn't last as long as the Gel Cell because
everybody at the field is borrowing it.

--
Normen Strobel
nstrobel@zoominternet.nospam.net

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normen strobel

???

--
Normen Strobel
nstrobel@zoominternet.nospam.net


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mdj

IMHO If you've got decent engines and know how to prime them properly then a
starter is almost always unnecessary. Yesterday I started my Irvine 53 7
times, on 6 of those occasions it started first flick, not a starter in
sight (the 7th time I didn't prime it properly!).

Unless anyone can enlighten me, i've never understood why people should wish
to weigh down their already heavy flightboxes with a heavy starter and fat
12v lead acid.

david smith

I'm with you there, the first thing I did when I quit flying helicopters was
to get a lightweight flight box. No starter, no 12v battery. Hand pump for
fuel, nicads for glow start and a leather glove.
--
Dave S, Kuusankoski, Finland.

My return address requires modification before use.

normen strobel

Because when my Saito 100 backfired it snapped my chicken stick in half.
And there's no way in hell I'm going to hand prop my Saito 300 Twin.

--
Normen Strobel
nstrobel@zoominternet.nospam.net

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fred mcclellan

Perhaps a bit of perspective is in order . . .

My smallest engine is a 1985 vintage K&B .61 rated at 2 horsepower,
and it will swing an 11.75 prop at about 12 grand, maybe a little
less. Those are published figures, not something I made up.

My Delta table top saw uses a 2 horsepower motor to spin a 10" blade
at 4700 RPM.

Getting an engine to start on the first flip means you are familiar
with the engine.

Hand-proping that engine means you think you're invincible.

Eddie, where'd ya put those photos ?
Cheers,
Fred McClellan
the dash plumber at mindspring dot com