Today's Message Index:
----------------------
1. 02:16 AM - Woodcomp SR3000/3 issue (graeme bird)
2. 08:02 AM - Re: Woodcomp SR3000/3 issue (Bud Yerly)
3. 11:58 AM - Re: Woodcomp SR3000/3 issue (graeme bird)
4. 12:07 PM - Re: Re: Woodcomp SR3000/3 issue (Bud Yerly)
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Subject: | Woodcomp SR3000/3 issue |
Just in case anyone else has the same problem:
twice on a hot day, after a no problems morning flight, on return my CS prop wouldn't
come off fully fine or respond at all. Controller etc behaving as expected.
The prop is about 6-8 years old and 325 hours and has been great previously.
I just had to fly old school controlling RPM by throttle and pitch to keep
below max rpm (speed about 80knts).
After investigation of slip rings, wiring, switches etc, I concluded the most likely
cause was the two connections between the slip ring and switch wiring (blue
and yellow/green), these are under heat shrink and comprise individual nickel
plated screw terminals. I found the body plating to have come off and rusty
and the terminal screw to also be corroded and rusty.
My plane is always in a hangar.
If anyone knows how the circuit works I'd be interested to know (its in the manual);
I thought I had it worked out but had assumed normally closed switches that
open at the limit but it seems they are normally open closing at the limit
which has me confused (an electronics engineer). Found slight signs of burn on
one contact. I understand the hub/switch arrangement has been changed on the
current design.
Another point to note is that although I had painted the collars at blade route
with 2 part aluminium primer (which had halted some surface corrosion) During
this investigation I saw that I hadn't painted all the way round by the switches.
this required some further surface treatment. It would be a bad day if the
collar split.
--------
Graeme Bird
G-UMPY - Mono Classic/XS FFW 912S, Woodcomp SR3000/3W CS, trutrak Gemini 2 axis
AP, PAW, PFLARM core, ads-b out, 8.33khz, mode S, FP-5, Aera500, SD on Nexus,
Smart A3
350 hours & 6 years on the Mono, 930 total
g(at)gdbmk.co.uk
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=482033#482033
Message 2
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Subject: | Woodcomp SR3000/3 issue |
I believe your timed major inspection requirement is due.
I=92m sure it is a simple problem but the maintenance requirements of your
prop manufacturer must be followed.
Woodcomp does not put its maintenance interval on their website. However i
nstructions came with the prop.
Ref: Woodcomp SR series Operators Manual
Hours of operation Place of work Carried out
by
25 hours On the aircraft Auth
orised mechanic
150 hours On the aircraft Autho
rised mechanic
300 hours At Service centre Produce
r or Service centre
450 hours On the aircraft Autho
rised mechanic
600 hours At Service centre Produce
r or Service centre
750 hours On the aircraft Autho
rised mechanic
900 hours At Service centre Produce
r or Service centre
1.050 hours On the aircraft Author
ised mechanic
1.200 hours Plant of producer Producer
WARNING A record of these periodical inspections of the propeller must be k
ept in the log book.
So I would recommend at 300 hours you pull the prop and fly it or send it t
o your local service center per the manufacturers maintenance instructions.
In the US this has become too much of a problem for Woodcomp owners due to
down time and shipping costs. We have had three low time (less than 300 ho
ur) Woodcomp props throw blades or the internal mechanism fail here in Nort
h America on just the Pipestral Aircraft, even though the planes were alway
s hangared and flown in blue skies. So proper service and inspection of th
ese or any prop is essential.
Best Regards,
Bud Yerly
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Window
s 10
________________________________
From: owner-europa-list-server@matronics.com <owner-europa-list-server@matr
onics.com> on behalf of graeme bird <graeme@gdbmk.co.uk>
Sent: Friday, August 3, 2018 5:16:35 AM
Subject: Europa-List: Woodcomp SR3000/3 issue
Just in case anyone else has the same problem:
twice on a hot day, after a no problems morning flight, on return my CS pro
p wouldn't come off fully fine or respond at all. Controller etc behaving a
s expected. The prop is about 6-8 years old and 325 hours and has been grea
t previously. I just had to fly old school controlling RPM by throttle and
pitch to keep below max rpm (speed about 80knts).
After investigation of slip rings, wiring, switches etc, I concluded the mo
st likely cause was the two connections between the slip ring and switch wi
ring (blue and yellow/green), these are under heat shrink and comprise indi
vidual nickel plated screw terminals. I found the body plating to have come
off and rusty and the terminal screw to also be corroded and rusty.
My plane is always in a hangar.
If anyone knows how the circuit works I'd be interested to know (its in the
manual); I thought I had it worked out but had assumed normally closed swi
tches that open at the limit but it seems they are normally open closing at
the limit which has me confused (an electronics engineer). Found slight si
gns of burn on one contact. I understand the hub/switch arrangement has bee
n changed on the current design.
Another point to note is that although I had painted the collars at blade r
oute with 2 part aluminium primer (which had halted some surface corrosion)
During this investigation I saw that I hadn't painted all the way round by
the switches. this required some further surface treatment. It would be a
bad day if the collar split.
--------
Graeme Bird
G-UMPY - Mono Classic/XS FFW 912S, Woodcomp SR3000/3W CS, trutrak Gemini 2
axis AP, PAW, PFLARM core, ads-b out, 8.33khz, mode S, FP-5, Aera500, SD o
n Nexus, Smart A3
350 hours & 6 years on the Mono, 930 total
g(at)gdbmk.co.uk
Read this topic online here:
https://eur01.safelinks.protection.outlook.com/?url=http%3A%2F%2Fforums.m
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Message 3
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Subject: | Re: Woodcomp SR3000/3 issue |
Yep it had the 300hr service by the UK woodcomp man Kevin.
--------
Graeme Bird
G-UMPY - Mono Classic/XS FFW 912S, Woodcomp SR3000/3W CS, trutrak Gemini 2 axis
AP, PAW, PFLARM core, ads-b out, 8.33khz, mode S, FP-5, Aera500, SD on Nexus,
Smart A3
350 hours & 6 years on the Mono, 930 total
g(at)gdbmk.co.uk
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=482046#482046
Message 4
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Subject: | Re: Woodcomp SR3000/3 issue |
Ouch, that has to hurt.
Bud Yerly
Custom Flight Creations
________________________________
From: owner-europa-list-server@matronics.com <owner-europa-list-server@matr
onics.com> on behalf of graeme bird <graeme@gdbmk.co.uk>
Sent: Friday, August 3, 2018 2:57:53 PM
Subject: Europa-List: Re: Woodcomp SR3000/3 issue
Yep it had the 300hr service by the UK woodcomp man Kevin.
--------
Graeme Bird
G-UMPY - Mono Classic/XS FFW 912S, Woodcomp SR3000/3W CS, trutrak Gemini 2
axis AP, PAW, PFLARM core, ads-b out, 8.33khz, mode S, FP-5, Aera500, SD o
n Nexus, Smart A3
350 hours & 6 years on the Mono, 930 total
g(at)gdbmk.co.uk
Read this topic online here:
https://eur02.safelinks.protection.outlook.com/?url=http%3A%2F%2Fforums.m
atronics.com%2Fviewtopic.php%3Fp%3D482046%23482046&data=02%7C01%7C%7C
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