Setting up OS 50SXH

[david]

Just taken delivery of my new OS 50 for the R50 combo. and have a few Qs.

1. Is it still de rigeur to bung a bit of wood into the carb throat to help
lock the engine for tightening the clutch?

2. Is it advisable to ditch the supplied fan and buy the metal upgrade that
promises "enhanced cooling and less vibration"?

3. The OS booklet shows both throttle arms being used in parallel. Is this
what people do these days for performane heli engines or is it considered
overkill?


TIA
David

[Steve]

I flew my R50 with OS50 this week for the first time and am very impressed
with the combination. I was told various things about tightening the fan but
I used a piece of hardwood. Make sure you locktight the fan. I only did the
nut and after 4 flights it worked loose and locked. Its now ok and flying
well.

I have the plastic fan and this seems to do a good job. The engine is set up
rich to run in and cools very quickly after the flight. I also found the
following website excellent for advice

http://www.raptortechnique.com/manual/manual_30-50-v2/index.html

This has a revised manual for the raptor 50 and points out things easy to
get wrong

Good luck with the kit, you wont be dissapointed



"david" <david_perry@btconnect.com> wrote in message
news:bem56p$dvr$1@hercules.btinternet.com...
> Just taken delivery of my new OS 50 for the R50 combo. and have a few Qs.
>
> 1. Is it still de rigeur to bung a bit of wood into the carb throat to
help
> lock the engine for tightening the clutch?
>
> 2. Is it advisable to ditch the supplied fan and buy the metal upgrade
that
> promises "enhanced cooling and less vibration"?
>
> 3. The OS booklet shows both throttle arms being used in parallel. Is
this
> what people do these days for performane heli engines or is it considered
> overkill?
>
>
> TIA
> David
>
>

[Beav]

"david" <david_perry@btconnect.com> wrote in message
news:bem56p$dvr$1@hercules.btinternet.com...
> Just taken delivery of my new OS 50 for the R50 combo. and have a few Qs.
>
> 1. Is it still de rigeur to bung a bit of wood into the carb throat to
help
> lock the engine for tightening the clutch?

I went upmarket Dave and I now use a piece of carbon fibre, but wood will do
perfectly:-) It's still the least stressful method as far as I'm concerned.

>
> 2. Is it advisable to ditch the supplied fan and buy the metal upgrade
that
> promises "enhanced cooling and less vibration"?

Not advisable or particularly desirable unless the origianl fan is crap.
It's NICE from a posuer POV, but that's about all.

>
> 3. The OS booklet shows both throttle arms being used in parallel. Is
this
> what people do these days for performane heli engines or is it considered
> overkill?

I'm a tad confused with that. It's the "both throttle arms" that's throwing
me.



--
Beav


Please note my E-mail address is "beavis dot original at ntlworld dot com"
(with the obvious changes)

Beavisland now lives at
www.beavisoriginal.co.uk

[david]

Beav., thanks for the replies. The both throttle arms bit, okay... the
throttle arm on the engine as supplied is not an arm in the conventional
sense, but more of a servo arm, one with two outcrops so that the engine
throttle barrel could be pushed OR pulled (pushed AND pulled) to achieve
barrel rotation in the same sense.

The barrel could be driven therefore from one servo with two pushrods, much
like one servo would drive 2 ailerons via the torque rod method.


David
"Beav" <beavis.original@ntloxoworld.com> wrote in message
news:mfBPa.4608$ZC.501@news.easynews.com...
>
> "david" <david_perry@btconnect.com> wrote in message
> news:bem56p$dvr$1@hercules.btinternet.com...
> > Just taken delivery of my new OS 50 for the R50 combo. and have a few
Qs.
> >
> > 1. Is it still de rigeur to bung a bit of wood into the carb throat to
> help
> > lock the engine for tightening the clutch?
>
> I went upmarket Dave and I now use a piece of carbon fibre, but wood will
do
> perfectly:-) It's still the least stressful method as far as I'm
concerned.
>
> >
> > 2. Is it advisable to ditch the supplied fan and buy the metal upgrade
> that
> > promises "enhanced cooling and less vibration"?
>
> Not advisable or particularly desirable unless the origianl fan is crap.
> It's NICE from a posuer POV, but that's about all.
>
> >
> > 3. The OS booklet shows both throttle arms being used in parallel. Is
> this
> > what people do these days for performane heli engines or is it
considered
> > overkill?
>
> I'm a tad confused with that. It's the "both throttle arms" that's
throwing
> me.
>
>
>
> --
> Beav
>
>
> Please note my E-mail address is "beavis dot original at ntlworld dot com"
> (with the obvious changes)
>
> Beavisland now lives at
> www.beavisoriginal.co.uk
>
>

[Beav]

"david" <david_perry@btconnect.com> wrote in message
news:bems58$nrf$1@hercules.btinternet.com...
> Beav., thanks for the replies. The both throttle arms bit, okay... the
> throttle arm on the engine as supplied is not an arm in the conventional
> sense, but more of a servo arm, one with two outcrops so that the engine
> throttle barrel could be pushed OR pulled (pushed AND pulled) to achieve
> barrel rotation in the same sense.
>
> The barrel could be driven therefore from one servo with two pushrods,
much
> like one servo would drive 2 ailerons via the torque rod method.

Yep it could, but it's far from necessary. A single arm has been used since
Adam was a lad and it seems to have worked pretty well so far, so although
you could use a push/pull arrangement, getting both arms exactly parallel
and both the same size, seems too much effort for very little (no) gain.


Beav (posting from a different computer, so no sig)

[Biggie in PA]

I use one throttle link on my OS 50. works fine!

--

Biggie in PA
sjg1958 at hotmail dot com


"Beav" <beavis.original@ntloxoworld.com> wrote in message
news:b0HPa.16072$cI2.2236@news.easynews.com...
>
> "david" <david_perry@btconnect.com> wrote in message
> news:bems58$nrf$1@hercules.btinternet.com...
> > Beav., thanks for the replies. The both throttle arms bit, okay... the
> > throttle arm on the engine as supplied is not an arm in the conventional
> > sense, but more of a servo arm, one with two outcrops so that the engine
> > throttle barrel could be pushed OR pulled (pushed AND pulled) to achieve
> > barrel rotation in the same sense.
> >
> > The barrel could be driven therefore from one servo with two pushrods,
> much
> > like one servo would drive 2 ailerons via the torque rod method.
>
> Yep it could, but it's far from necessary. A single arm has been used
since
> Adam was a lad and it seems to have worked pretty well so far, so although
> you could use a push/pull arrangement, getting both arms exactly parallel
> and both the same size, seems too much effort for very little (no) gain.
>
>
> Beav (posting from a different computer, so no sig)
>
>
>
>