Today's Message Index:
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1. 06:53 PM - Arplast Propeller problems (Glenn Perry)
2. 06:56 PM - Panel Mod (Glenn Perry)
3. 10:40 PM - Re: Arplast Propeller problems (Roland)
4. 10:57 PM - Re: Arplast Propeller problems (Alan Burrill)
5. 11:49 PM - Re: Arplast Propeller problems (italianjon)
Message 1
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| Subject: | Arplast Propeller problems |
Hello Guys,
thanks for a great forum! I have an Arplast VP50 propeller. I have a problem with
the pitch change system. When tested on the ground, I can run the pitch from
full corse to full fine with no problems. I get normal operation for a while
in flight, then the pitch change seems to stop working. When I test the prop
after shut down, the pitch change motor does not seem to have enough torque to
run from one limit to the other. The motor stalls after very little movement.
Any ideas what could be the problem? I have been careful to lubricate the jack
screw often, so I dont think that is the problem. Any idea where I could get
a new motor? And as a last resort (considering the demise of Arplast), what
propellers are approved for G registered Europas?
Thanks, Glenn Perry G-DLCB Classic Mono, 912UL
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Hi All,
I would like to change my round dial six pack of instruments for an MGL glass panel.
As my Europa is on the British register, I will need to get approval for
the change. Has anyone with a G reg Europa done this Mod? If so could you give
me details?
Thanks guys.
Glenn Perry G-DLCB Classic Mono
Message 3
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| Subject: | Re: Arplast Propeller problems |
Hi Glenn,
if you need a new propeller, I would go for an Airmaster AP 332 (which is approved
in the UK, since I've bought my Europa there with that prop). Top Quality,
top service, although not quite cheap.
Regards and good luck with troubleshooting
Roland
PH-ZTI
XS TG 914
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=466992#466992
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| Subject: | Re: Arplast Propeller problems |
I dont run a VP prop but I recall from other posts that the electrical supply through
the brushes is important and any high resistance due to poor contact or
wear on the brushes might have similar effects.
Alan
G-OBJT
> On 8 Mar 2017, at 02:52, Glenn Perry <gfhperry@gmail.com> wrote:
>
>
> Hello Guys,
>
> thanks for a great forum! I have an Arplast VP50 propeller. I have a problem
with the pitch change system. When tested on the ground, I can run the pitch
from full corse to full fine with no problems. I get normal operation for a while
in flight, then the pitch change seems to stop working. When I test the prop
after shut down, the pitch change motor does not seem to have enough torque
to run from one limit to the other. The motor stalls after very little movement.
Any ideas what could be the problem? I have been careful to lubricate the
jack screw often, so I dont think that is the problem. Any idea where I could
get a new motor? And as a last resort (considering the demise of Arplast), what
propellers are approved for G registered Europas?
>
> Thanks, Glenn Perry G-DLCB Classic Mono, 912UL
>
>
>
Message 5
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| Subject: | Re: Arplast Propeller problems |
Hi Glenn,
Sorry if I am "teaching my grandmother to suck eggs", I know it's almost impossible
to communicate on these forums your entire troubleshooting history and everything
that you have done up to now in a concise few sentences.
One of your statements that jumps off the page at me, is that you have no issues
on ground tests, I assume from the way you've written it, that means before
the flight - is that correct? And then after the flight has completed, the issue
remains - again, is that the correct understanding?
Do you have the Arplast standard VP controller installed?, or a CS controller (CSC-1
etc.)? If you have the Arplast controller, have you changed the batteries
(sorry, obvious question :? )
If you have changed the batteries (or you have a CS controller installed), then
I would recommend putting a new 9V battery directly across the motor power terminals.
You can do this with just the spinner removed. This will directly test
the motor itself. If the motor is supplying enough torque with the power attached
directly to it, then it implies the wiring could be at fault.
If it points to wiring then, from what you've written I would want to eliminate
thermal effects. I suggest taking voltage measurements at the PV50 motor while
the engine is cold and then again when the engine is hot. From what you said,
it sounds like the problem is reproducible, so you should be able to collect
some good fault finding data.
If you do need a replacement motor, I know that Kevin Kenward was trying to establish
a "support network" for the Arplast PV50, following the company's demise.
You may have to check directly with him, but if I recall correctly the motors
are "Commercial-of-the-shelf" from a company in Germany.
Best
Jon
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=466995#466995
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