---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Sun 02/12/17: 9 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:14 AM - Re: ROTAX914 pressure sensor 4mm PVC tube (h&jeuropa) 2. 05:28 AM - Re: Mono undercarriage lubrication? (h&jeuropa) 3. 08:40 AM - Re: ROTAX914 pressure sensor 4mm PVC tube (Robert Borger) 4. 01:20 PM - Re: Arplst PV50 - Last Stand... Sort of... (Ken Atkinson) 5. 01:50 PM - Landing a mono on 400m in the middle of Ukrainian winter (ploucandco) 6. 02:05 PM - Re: Arplst PV50 - Last Stand... Sort of... (GRAHAM SINGLETON) 7. 02:13 PM - Re: Mono undercarriage lubrication? (JonSmith) 8. 02:24 PM - Re: Landing a mono on 400m in the middle of Ukrainian winter (JonSmith) 9. 03:11 PM - Re: Landing a mono on 400m in the middle of Ukrainian winter (ploucandco) ________________________________ Message 1 _____________________________________ Time: 05:14:54 AM PST US Subject: Europa-List: Re: ROTAX914 pressure sensor 4mm PVC tube From: "h&jeuropa" Rotax sells this as a replacement part (P/N 860 660), but it is very expensive and in the US few of the distributors have it in stock. There are suitable automotive hoses available. Jim Read this topic online here: http://forums.matronics.com/viewtopic.php?p=466042#466042 ________________________________ Message 2 _____________________________________ Time: 05:28:14 AM PST US Subject: Europa-List: Re: Mono undercarriage lubrication? From: "h&jeuropa" Jon, I was hoping Bud or Nev or Nigel would reply to this post as they have a lot of experience. The manual doesn't provide much instruction about lubrication. What we have found is that most moving parts require lubrication. We use a spray lubricant purchased at a DIY store that supposedly leaves a teflon barrier for most places including those swing arm bushes. We also use it on all hinges, door mechanism, shoot bolts, rod ends and bearings (these last two probably are unnecessary since they should be lubed and sealed for life). We use a heavy anti seize paste on sliding connections, especially the torque tubes into the tailplanes and the front and rear pins on the wings. We also lube all pip pins with anti seize. It makes a mess but it is easy to disassemble next time! We installed door locks and we lube them with lock lube, a graphite lube available at DIY stores. Hope this helps. Jim Read this topic online here: http://forums.matronics.com/viewtopic.php?p=466043#466043 ________________________________ Message 3 _____________________________________ Time: 08:40:50 AM PST US From: Robert Borger Subject: Re: Europa-List: ROTAX914 pressure sensor 4mm PVC tube I=99ll bet you can find a suitable hose/tubing here: https://www.mcmaster.com/#standard-plastic-and-rubber-tubing/=16bnwhx if not at a good auto supply store. Blue skies & tailwinds, Bob Borger Europa XS Tri, Rotax 914, Airmaster C/S Prop (75 hrs). Little Toot Sport Biplane, Lycoming Thunderbolt AEIO-320 EXP 3705 Lynchburg Dr. Corinth, TX 76208-5331 Cel: 817-992-1117 rlborger@mac.com On Feb 11, 2017, at 3:59 PM, ploucandco wrote: Hello, I need to replace/reroute some hoses in my 914 firewall. And looking where I can find a 4mm PVC tube for the 914 pressure sensor that is supporting high temperature found in the firewall. This one needs to end up near the air filter of the turbo. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=466025#466025 ________________________________ Message 4 _____________________________________ Time: 01:20:21 PM PST US Subject: Re: Europa-List: Arplst PV50 - Last Stand... Sort of... From: Ken Atkinson Hi Jon, If something is loose inside your PV50 you must dismantle it again and investigate. The initial balancing, I believe, would have been achieved by fitting appropiate weights into the centre of the blade roots.I doubt that any of these would be loose but check! I did find on my first annual service of my PV50 that the centre triangular block was loose on the activator tube and the grub screw was loose! This year I carried out a static balance following the fitting of new thrust bearings and bushes.I was surprised at the out of balance that I had to counteract with 8 mm threaded weights fitted onto the six 8mm hub assembly bolts. This seemed a suitable method of fitting balance weights to me? How have you fitted any balance weights? My propeller/engine is running pretty smoothly now but probably would benefit from dynamic balancing. I have a spare set of early PV50 Classic (shorter) 80hp narrow blades, but they would need serious balancing to match a different hub. Each set of blades is matched to fit each hub and also each blade must be fitted in the correct position. My details are on the members list if you want to contact me otherwise I will look out for you at a fly-in for some intersting PV50 tales! Ken Atkinson G-CEKV mono no 19 On 11/02/2017 17:56, italianjon wrote: > > Hi All, > > If you recall I posted about a year ago, relating to PV50 and some vibration problems. Well, it has been an interesting year, and some stories which I won't write on a public forum, but I might share over a beer at a fly-in. A lot of the year has been a learning curve, and I used the time waiting for the PH-Reg to come through, to experiment and learn more > > Today I was coming to the end of a careful adjustments on the propeller, but still, alas, there is an imbalance. I'm getting about 0.25 IPS on the prop (attached is the outcome of the spectrum), this is now the main and seemingly only contributor to the vibration. > > I've managed to get all three blade-pitches to within 0.16 degres across all three blades, and the tracking is less than 3 mm. The blades are quite firmly seated now, after I have installed new plastic blocks. All of this has had no real effect. > > Today was a very quiet day at the airfield. There was only myself and my "plane work buddy". On one of the blades I heard a "tick", and on closer inspection it is evident something is loose on the inside (One of the static balance weights, I am assuming) > > Does anyone have any experience at all in setting the static weights on a PV50 blade? Is it possible without manufacturer support? > > Failing that, is there anyone with a spare blade that I could try in the position, to close off this investigation? > > I know the engine is not contributing, as the latest spectrum shows nothing significant at key engine frequencies, and in addition I have spectra from other measurements with my aircraft and a Warpdrive installed which shows very good vibration down at 0.08IPS. > > Cheers > > Jon > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=466013#466013 > > > Attachments: > > http://forums.matronics.com//files/screenshot_20170211_182509_207.png > > --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus ________________________________ Message 5 _____________________________________ Time: 01:50:31 PM PST US Subject: Europa-List: Landing a mono on 400m in the middle of Ukrainian winter From: "ploucandco" https://www.youtube.com/watch?v=_ouYcfMC8D0 Read this topic online here: http://forums.matronics.com/viewtopic.php?p=466073#466073 ________________________________ Message 6 _____________________________________ Time: 02:05:51 PM PST US From: GRAHAM SINGLETON Subject: Re: Europa-List: Arplst PV50 - Last Stand... Sort of... Jon & KenI always used to start by balancing each blade separately on the b ench.=C2- I built a simple jig having a knife edge fulcrum positioned at the centre of the prop assembly, which supported the blade so that the root of the blade was the correct distance from the centre/fulcrum and the=C2 - blade was supported somewhere about 75% blade diameter. there is a seco nd fulcrum at about 60% of the span (not critical) where the load is measur ed accurately, to within 1/2 a gram. This is the moment of the blade about the centre of the prop. Each blade must have the same moment. Surprisingly the actual weight of each blade might not be exactly the same, it's the mom ent that is critical. Now measure the moment of each blade and adjust by adding a small amount of lead in the hole drilled down the blade from the root. The lead shot is se cured with epoxy resin and you will find it is about 300mm out from the roo t.I hope that's clear enough to understand, I learned this method from Jerr y Davis who used to be the UK agent for Arplast.Graham On Sunday, 12 February 2017, 21:21, Ken Atkinson wrote: rnet.com> Hi Jon, If something is loose inside your PV50 you must dismantle it again and investigate. The initial balancing, I believe, would have been achieved by fitting appropiate weights into the centre of the blade roots.I doubt that any of these would be loose but check! I did find on my first annual service of my PV50 that the centre triangular block was loose on the activator tube and the grub screw was loose! This year I carried out a static balance following the fitting of new thrust bearings and bushes.I was surprised at the out of balance that I had to counteract with 8 mm threaded weights fitted onto the six 8mm hub assembly bolts. This seemed a suitable method of fitting balance weights to me? How have you fitted any balance weights? My propeller/engine is running pretty smoothly now but probably would benefit from dynamic balancing. I have a spare set of early PV50 Classic (shorter) 80hp narrow blades, but they would need serious balancing to match a different hub. Each set of blades is matched to fit each hub and also each blade must be fitted in the correct position. My details are on the members list if you want to contact me otherwise I will look out for you at a fly-in for some intersting PV50 tales! Ken Atkinson=C2- G-CEKV mono no 19 On 11/02/2017 17:56, italianjon wrote: > > Hi All, > > If you recall I posted about a year ago, relating to PV50 and some vibrat ion problems. Well, it has been an interesting year, and some stories which I won't write on a public forum, but I might share over a beer at a fly-in . A lot of the year has been a learning curve, and I used the time waiting for the PH-Reg to come through, to experiment and learn more > > Today I was coming to the end of a careful adjustments on the propeller, but still, alas, there is an imbalance. I'm getting about 0.25 IPS on the p rop (attached is the outcome of the spectrum), this is now the main and see mingly only contributor to the vibration. > > I've managed to get all three blade-pitches to within 0.16 degres across all three blades, and the tracking is less than 3 mm. The blades are quite firmly seated now, after I have installed new plastic blocks. All of this h as had no real effect. > > Today was a very quiet day at the airfield. There was only myself and my "plane work buddy". On one of the blades I heard a "tick", and on closer in spection it is evident something is loose on the inside (One of the static balance weights, I am assuming) > > Does anyone have any experience at all in setting the static weights on a PV50 blade? Is it possible without manufacturer support? > > Failing that, is there anyone with a spare blade that I could try in the position, to close off this investigation? > > I know the engine is not contributing, as the latest spectrum shows nothi ng significant at key engine frequencies, and in addition I have spectra fr om other measurements with my aircraft and a Warpdrive installed which show s very good vibration down at 0.08IPS. > > Cheers > > Jon > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=466013#466013 > > > Attachments: > > http://forums.matronics.com//files/screenshot_20170211_182509_207.png > > --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus S - WIKI - - =C2- =C2- =C2- =C2- =C2- -Matt Dralle, List Admin. ________________________________ Message 7 _____________________________________ Time: 02:13:47 PM PST US Subject: Europa-List: Re: Mono undercarriage lubrication? From: "JonSmith" Hi Jim, Many thanks for your thoughts on this. I too like to keep everything well lubricated where possible, just have never been too sure about the swinging arm bearings and the shock absorber block oilite bushes! I think I remembered long ago reading somewhere that the bushes were sort of self lubricating - but that might well be rubbish - I just can't remember! I'll take your advice and spray a bit of oil on them. I trailer and rig each time so don't have the problem of wings/ tailplanes seizing in position, I just (often) use regular grease for those parts which seems to work well. Thanks again, Jon -------- G-TERN Classic Mono Read this topic online here: http://forums.matronics.com/viewtopic.php?p=466077#466077 ________________________________ Message 8 _____________________________________ Time: 02:24:23 PM PST US Subject: Europa-List: Re: Landing a mono on 400m in the middle of Ukrainian winter From: "JonSmith" Mate, regardless of the subject of the video - which has great scenery by the way - that 360 degree panoramic view is incredible. I've never seen anything like it. How do you do that? (I've just been sitting in the lounge with my iPad doing strange sort of pirouettes on the settee watching it.......! :D) Nice one! -------- G-TERN Classic Mono Read this topic online here: http://forums.matronics.com/viewtopic.php?p=466079#466079 ________________________________ Message 9 _____________________________________ Time: 03:11:57 PM PST US Subject: Europa-List: Re: Landing a mono on 400m in the middle of Ukrainian winter From: "ploucandco" just get you a https://www.360fly.com/ Read this topic online here: http://forums.matronics.com/viewtopic.php?p=466086#466086 ------------------------------------------------------------------------------------- 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.