---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Tue 01/08/19: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:58 AM - Re: Arplast Propeller problems (John Wighton) 2. 01:10 AM - Re: Re: Mono landing gear frame (Peter Jeffers) 3. 01:22 AM - Re: Re: Arplast Propeller problems (Peter Jeffers) 4. 04:58 AM - Re: Re: Arplast Propeller problems (davidjoyce@doctors.org.uk) ________________________________ Message 1 _____________________________________ Time: 12:58:33 AM PST US Subject: Europa-List: Re: Arplast Propeller problems From: "John Wighton" The PV-50 and other electric VP/CS props are designed for light weight and a relatively low hours life before overhaul/replacement. Most spam cans with CS props use hydraulic fluid driven by a pump - this by definition does not work at all without the engine running to provide hydraulic pressure. So, is it unreasonable for the PV-50 and Airmaster types to restrict the normal operation to engine running only (except for maintenance and setup)? Perhaps not. Looking at SUMMARY OF PROPELLER DESIGN PROCEDURES AND DATA. VOLUMEs 1, 2 and 3 it is evident how complex the aerodynamics, loading and consequent analysis can be. Any propeller system should be able to withstand loads imposed for maintenance and troubleshooting. If the design is such that accumulated detritus results in component overload - the design is not robust and it is questionable whether it is fully fit-for-use. I recommend following the maintenance requirements of the propeller. If, following the work, problems still exist it may be a case of replacing suspect items. My own experience is limited to Airmaster - the earlier version which l use does require periodic attention to the brushes (these seem to stick and sometimes wear unevenly), prop backplate (contact quality and cleanliness) and the earlier motor is somewhat slow (later ones being much quicker stop to stop). -------- John Wighton Europa XS trigear G-IPOD Read this topic online here: http://forums.matronics.com/viewtopic.php?p=486817#486817 ________________________________ Message 2 _____________________________________ Time: 01:10:50 AM PST US From: "Peter Jeffers" Subject: RE: Europa-List: Re: Mono landing gear frame Hi Tim, Even the whole landing gear assembly does not include the Landing gear frame that Mike is looking for. You have the landing gear frame still attached to you airframe as that is what you have fixed you tri gear nose leg to. Pete Jeffers LAA inspector to the Europa Club From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of Peter Timm Sent: 07 January 2019 18:04 Subject: Re: Europa-List: Re: Mono landing gear frame Hi Mike, I have a whole landing gear assembly, that I bought many years ago from a U.S. builder, who was converting to a tri-gear . Get in touch, if you are really stuck. Shipping would probably be expensive, as I am located North of Vancouver, B.C. Canada. My Europa is still for sale and can be viewed on my blogsite: Peter Timm. blogspot. ca Regards Peter Timm On 2019-01-07, at 2:36 AM, MikeP wrote: Thanks Alan I am looking for LG01. regards Mike Read this topic online here: http://forums.matronics.com/viewtopic.php?p=486790#486790 -- Please Support Your Lists This (And Get -Matt Dralle, List - The Europa-List --> &n======================== ======================= Virus-free. www.avg.com ________________________________ Message 3 _____________________________________ Time: 01:22:44 AM PST US From: "Peter Jeffers" Subject: RE: Europa-List: Re: Arplast Propeller problems Re Alan's comment about checking brushes etc. If it were possible to even see the brushes you may find the answer to your problem. The motor is an expensive sealed unit and I doubt any repair would be possible. The armature itself is only about 1.5 mm in diameter. Please be aware (as per this forum) that cycling this prop without the engine running will overload and eventually wreck the pitch change motor. Due the manufacturers of the prop now being out of business you may experience difficulty obtaining a replacement motor. SORRY. Probably best to enquire via this forum. Best of luck Pete Jeffers -----Original Message----- From: owner-europa-list-server@matronics.com [mailto:owner-europa-list-server@matronics.com] On Behalf Of Alan Burrill Sent: 07 January 2019 17:12 Subject: Re: Europa-List: Re: Arplast Propeller problems My first thought would be to check the Brushes for wear, cracks, length and broken wires. > On 7 Jan 2019, at 16:26, BobD wrote: > > > I had a problem with my PV-50 Propeller and CSC-1 Controller yesterday, and whilst researching it on the forum, came across the posts below, which are the nearest to the problem I experienced. My Europa has approx 60 hours on the Prop, but the Prop was purchased many years ago (don't know the exact date but judging from the documentation probably not long after 2000). It has been performing as expected since installation. > > After take-off, and switching from TKO to CLM Mode, I noticed that the engine RPM remained near maximum, and looking at the reading on the CSC-1, it was displaying 40%. I tried changing to MAN mode but couldn't increase or decrease the Pitch. I throttled back to reduce the RPM, but this impeded my ability to climb. As it was a short flight, and I could maintain height, albeit at a slower speed than I normally fly, I continued at low level to my destination. Once I landed, (and at reduced RPM i.e 2500) the Pitch Controller functioned again through the full range. > > 90 minutes later the Prop and Controller functioned through the full range in my pre-flight checks, but exactly the same thing happened following climb out, and all the way back home. I did notice a small change in the CSC-1 Pitch readout the closer I got to home, but can't recall if this was as I throttled back in the approach. Back on terra firma, the Prop again functioned through the full range. > > So it would seem the Pitch will alter at pre-flight RPM (2500-400), but not at 5000+ > > I didn't have time on my return to inspect the electric motor assembly, but plan to do this in the next day or so. Apart from cleaning and re-greasing the worm assembly, and checking again the full range of movement, has anyone any further suggestions, or potential explanations as to why this could happen ? > > -------- > Bob Dawson > Europa XS TG || 912 ULS || G-NHRJ || Dynon Skyview || PilotAware || SmartAss3 > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=486794#486794 > > > > > > > > > --- This email has been checked for viruses by AVG. https://www.avg.com ________________________________ Message 4 _____________________________________ Time: 04:58:22 AM PST US From: davidjoyce@doctors.org.uk Subject: Re: Europa-List: Re: Arplast Propeller problems It is perhaps of interest that Woodcomp advise cycling their props through fine/coarse as a pre start check, which suggests that their structure (along with Airmaster's) is significantly more durable than Arplast. Regards, David Joyce, GXSDJ On 2019-01-08 08:58, John Wighton wrote: > > The PV-50 and other electric VP/CS props are designed for light weight and a relatively low hours life before overhaul/replacement. Most spam cans with CS props use hydraulic fluid driven by a pump - this by definition does not work at all without the engine running to provide hydraulic pressure. > > So, is it unreasonable for the PV-50 and Airmaster types to restrict the normal operation to engine running only (except for maintenance and setup)? Perhaps not. > > Looking at SUMMARY OF PROPELLER DESIGN PROCEDURES AND DATA. VOLUMEs 1, 2 and 3 it is evident how complex the aerodynamics, loading and consequent analysis can be. > > Any propeller system should be able to withstand loads imposed for maintenance and troubleshooting. If the design is such that accumulated detritus results in component overload - the design is not robust and it is questionable whether it is fully fit-for-use. > > I recommend following the maintenance requirements of the propeller. If, following the work, problems still exist it may be a case of replacing suspect items. > > My own experience is limited to Airmaster - the earlier version which l use does require periodic attention to the brushes (these seem to stick and sometimes wear unevenly), prop backplate (contact quality and cleanliness) and the earlier motor is somewhat slow (later ones being much quicker stop to stop). > > -------- > John Wighton > Europa XS trigear G-IPOD > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=486817#486817 [1] > Links: ------ [1] http://forums.matronics.com/viewtopic.php?p=486817#486817 [2] http://www.mypilotstore.com [3] http://www.matronics.com/contribution [4] http://www.matronics.com/Navigator?Europa-List [5] http://forums.matronics.com [6] http://wiki.matronics.com ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message europa-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Europa-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/europa-list Browse Digests http://www.matronics.com/digest/europa-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.