---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Tue 05/17/22: 10 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 01:10 PM - Gearbox dog wear (pockets) and Warpdrive props? (Pete Zut) 2. 01:14 PM - airmaster compatible prop choices for the mono? (Pete Zut) 3. 01:41 PM - Classic Exhaust (SHERIDAN Roger) 4. 01:59 PM - Re: Gearbox dog wear (pockets) and Warpdrive props? (n7188u) 5. 02:14 PM - Re: Classic Exhaust (timward) 6. 02:15 PM - Re: Re: Gearbox dog wear (pockets) and Warpdrive props? (Pete Zut) 7. 02:29 PM - Re: Classic Exhaust (Pete Zut) 8. 04:01 PM - Re: Arplast Propeller problems (BobD) 9. 07:45 PM - Re: airmaster compatible prop choices for the mono? (Area-51) 10. 07:53 PM - Re: Gearbox dog wear (pockets) and Warpdrive props? (Area-51) ________________________________ Message 1 _____________________________________ Time: 01:10:40 PM PST US From: Pete Zut Subject: Europa-List: Gearbox dog wear (pockets) and Warpdrive props? So, my resonance issue at cruise (5krpm) has been narrowed down to the gearbox dogs, and a worn spot at either end of the dog as felt during a recent friction test. Thx to Chris on this list for the heads up! I verified the torsional resonance issue using the very well engineered SmartAvionics PB40 dynamic balancer with multiple axis measurement. Rotax is suggesting that this pocket-wear can be induced from low friction torque (which I have since my box rebuild by the certified rotax depot :-/ not impressed) and/or the warp drive having too high a rotating mass. The latter brings up the obvious question: since the warp-drive has been the default for the europa prior to the more recent blade choices, how many others in the fleet (or any other fleet for that matter), have had similar gearbox issues with the short 65" three blade WD's? It's looking like I may now have to dish out $5000 in gearbox parts to replace the dogs (gear-set + clutch I'm told). What a waste of $$ - was planning on an autopilot and airmaster...... ain't gonna happen now. Cheers and thx for any data, Pete C-GNPZ ________________________________ Message 2 _____________________________________ Time: 01:14:53 PM PST US From: Pete Zut Subject: Europa-List: airmaster compatible prop choices for the mono? Now with a gearbox longevity vs prop dilemma, I'm wondering if the lighter composite blades made for the airmaster will also fit into the WD prop hub (as a stopgap measure to not destroy another gearbox, and still keep the lottery option open for an airmaster hub down the road)? Cheers and thx, PeteZ C-GNPZ ________________________________ Message 3 _____________________________________ Time: 01:41:02 PM PST US From: SHERIDAN Roger Subject: Europa-List: Classic Exhaust x-mailer: Apple Mail (2.3696.80.82.1.1) R29vZCBFdmVuaW5nIEFsbCwNCg0KSSBoYXZlIHN1ZmZlcmVkIGFub3RoZXIg Y3JhY2tlZCBleGhhdXN0IGhlYWRlciBhbmQgd29uZGVyIGl0IG1heSBiZSB0 aW1lIGZvciBhIHJlcGxhY2VtZW50Lg0KNi04IHdlZWtzIGxlYWQgdGltZSBm cm9tIENLVCAmIGp1c3Qgd29uZGVyaW5nIGlmIGFueW9uZSBpbiBVSyBtaWdo dCBiZSBhYmxlIHRvIGhlbHAuDQoNCklmIHNvLCBwbGVhc2UgZW1haWwgbWUg ZGlyZWN0IGF0IHJvZ2Vyc2hlcmlkYW5AbWFjLmNvbTxtYWlsdG86cm9nZXJz aGVyaWRhbkBtYWMuY29tPg0KDQpUaGFua3MuDQoNCg0KDQoNCg0KX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX18NCg0KUm9nZXIgU2hlcmlkYW4N CkxpbmUgUGlsb3QNCg0KKzQ0ICgwKSAxNzM3IDgyMiA4ODUNCg0KDQpCRSBH UkVFTiwgUkVBRCBGUk9NIFRIRSBTQ1JFRU4NCg0KW1NwZWNpYWxpc3QgQXZp YXRpb24gU2VydmljZXNdPGh0dHA6Ly93d3cuc3BlY2lhbGlzdC1hdmlhdGlv bi5jby51ay8+DQogICAgICAgICAgICAgICBbY2lkOmltYWdlOWIyZWQ3LlBO R0A2ZDQ1OTZmYi40Y2FjMjNlOV0gPGh0dHBzOi8vd3d3LnNwZWNpYWxpc3Qt YXZpYXRpb24uY29tLz4NCltTcGVjaWFsaXN0IEF2aWF0aW9uIFNlcnZpY2Vz XTxodHRwOi8vd3d3LnNwZWNpYWxpc3QtYXZpYXRpb24uY28udWsvPg0KDQpT cGVjaWFsaXN0IEF2aWF0aW9uIFNlcnZpY2VzIExpbWl0ZWQg4oCTIFJlZ2lz dGVyZWQgaW4gRW5nbGFuZCBhbmQgV2FsZXMgTm86MTg0ODc3Mw0KUmVnaXN0 ZXJlZCBvZmZpY2UgLyBIUTogR2xvdWNlc3RlcnNoaXJlIEFpcnBvcnQsIFN0 YXZlcnRvbiwgQ2hlbHRlbmhhbSwgR2xvdWNlc3RlcnNoaXJlIEdMNTEgNlNT DQoNClRoaXMgbWVzc2FnZSBhbmQgYW55IGF0dGFjaG1lbnRzIGFyZSBjb25m aWRlbnRpYWwgYW5kIGludGVuZGVkIG9ubHkgZm9yIHRoZSB1c2Ugb2YgdGhl IHBlcnNvbiB0byB3aG9tIHRoZXkgYXJlIGFkZHJlc3NlZC4gSWYgeW91IGFy ZSBub3QgdGhlIGludGVuZGVkIHJlY2lwaWVudCwgeW91IG11c3Qgbm90IHVz ZSwgY29weSBvciBkaXN0cmlidXRlIHRoaXMgbWVzc2FnZSBvciBhbnkgYXR0 YWNobWVudHMuIEFueSBzdWNoIGFjdGlvbiBtYXkgYmUgdW5sYXdmdWwuIElm IHlvdSBoYXZlIHJlY2VpdmVkIHRoaXMgbWVzc2FnZSBpbiBlcnJvciwgcGxl YXNlIG5vdGlmeSB1cyBpbW1lZGlhdGVseSBieSByZXBseWluZyB0byB0aGUg bWVzc2FnZSBhbmQgZGVsZXRlIGl0IGZyb20geW91ciBjb21wdXRlci4gTWVz c2FnZXMgc2VudCB0byBhbmQgZnJvbSB1cyBtYXkgYmUgbW9uaXRvcmVkLg0K SW50ZXJuZXQgY29tbXVuaWNhdGlvbnMgbWF5IGJlIGludGVyY2VwdGVkLCBj b3JydXB0ZWQsIGxvc3QsIGFycml2ZSBsYXRlIG9yIGluY29tcGxldGUsIG9y IGNvbnRhaW4gdmlydXNlcy4gVGhlcmVmb3JlLCB3ZSBkbyBub3QgYWNjZXB0 IHJlc3BvbnNpYmlsaXR5IGZvciBhbnkgZXJyb3JzIG9yIG9taXNzaW9ucyB0 aGF0IGhhdmUgYXJpc2VuIGFzIGEgcmVzdWx0IG9mIGVtYWlsIHRyYW5zbWlz c2lvbiBvciBmb3IgdmlydXNlcy4gSXQgaXMgeW91ciByZXNwb25zaWJpbGl0 eSB0byBjb25kdWN0IHlvdXIgb3duIHZpcnVzIGNoZWNraW5nLiBJZiB2ZXJp ZmljYXRpb24gaXMgcmVxdWlyZWQsIHBsZWFzZSByZXF1ZXN0IGEgaGFyZC1j b3B5IHZlcnNpb24uIEFueSBvcGluaW9ucyBleHByZXNzZWQgYXJlIHRob3Nl IG9mIHRoZSBhdXRob3IgYW5kIGRvIG5vdCBuZWNlc3NhcmlseSByZXByZXNl bnQgdGhvc2Ugb2YgdGhlIGNvbXBhbnkuDQoNCl9fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fDQoKU2Nhbm5lZCBieSBTeXN0ZW1Gb3JjZSBJLlQu IFBSTVggU2VjdXJpdHkgU3lzdGVtCg= ________________________________ Message 4 _____________________________________ Time: 01:59:21 PM PST US Subject: Europa-List: Re: Gearbox dog wear (pockets) and Warpdrive props? From: "n7188u" Pete, Sorry to hear about the possible expense (I know the feeling). You can thank Phil Lockwood for that hint. He told me it is a very common issue if the gearbox is old, and not properly rebuilt. Low friction torque? Dunno. I was always told that if your gearbox has low friction you can easily tell (very noisy). Chris Read this topic online here: http://forums.matronics.com/viewtopic.php?p=506811#506811 ________________________________ Message 5 _____________________________________ Time: 02:14:54 PM PST US From: timward Subject: Re: Europa-List: Classic Exhaust Hi Roger, For your information only, I replaced all the header flanges of the original Europa Classic Exhaust with the stronger recommended Rotax flanges that fit into the cylinder heads. They came with the engine. The Europa flanges were of poor quality and didn=99t fit well. Local engineer did it. Where are the cracks occurring? Will venture over to the motherland soon and may be able to catch up with a p int? Cheers, Tim Sent from my iPad Tim Ward 12 Waiwetu Street, Fendalton, Christchurch, 8052 New Zealand. ward.t@xtra.co.nz 021 0640221 > On 18/05/2022, at 8:48 AM, SHERIDAN Roger wrote: > > =EF=BB > Good Evening All, > > > I have suffered another cracked exhaust header and wonder it may be time f or a replacement. > 6-8 weeks lead time from CKT & just wondering if anyone in UK might be abl e to help. > > If so, please email me direct at rogersheridan@mac.com > > Thanks. > > > > > > Roger Sheridan > Line Pilot > > +44 (0) 1737 822 885 > > BE GREEN, READ FROM THE SCREEN > > > > > > Specialist Aviation Services Limited =93 Registered in England and W ales No:1848773 > Registered office / HQ: Gloucestershire Airport, Staverton, Cheltenham, Gl oucestershire GL51 6SS > > This message and any attachments are confidential and intended only for th e use of the person to whom they are addressed. If you are not the intended r ecipient, you must not use, copy or distribute this message or any attachmen ts. Any such action may be unlawful. If you have received this message in er ror, please notify us immediately by replying to the message and delete it f rom your computer. Messages sent to and from us may be monitored. > Internet communications may be intercepted, corrupted, lost, arrive late o r incomplete, or contain viruses. Therefore, we do not accept responsibility for any errors or omissions that have arisen as a result of email transmiss ion or for viruses. It is your responsibility to conduct your own virus chec king. If verification is required, please request a hard-copy version. Any o pinions expressed are those of the author and do not necessarily represent t hose of the company. > > > Scanned by SystemForce I.T. PRMX Security System =C2=AD=C2=AD ________________________________ Message 6 _____________________________________ Time: 02:15:16 PM PST US From: Pete Zut Subject: Re: Europa-List: Re: Gearbox dog wear (pockets) and Warpdrive props? Hi Chris, My FT is at the lower limit, but isn't noisy fwiw. Such is life when buying a used aircraft - one never knows the true service history - always full of unanticipated surprises ;-) For a personality type such as mine, it's killer. More motivation to get my 20+year old kit bits finally into formation with new bits (and cross my fingers lol).... it's gonna happen. really. :-) Thanks again! Pete PS - WD couldn't tell me their moment of inertia, but I just tripped on a rotax service bulletin which lays out a simple hanging string test to determine.... guess what I'll be doing tomorrow morning ;-) On Tue, May 17, 2022 at 5:06 PM n7188u wrote: > > Pete, Sorry to hear about the possible expense (I know the feeling). You > can thank Phil Lockwood for that hint. He told me it is a very common issue > if the gearbox is old, and not properly rebuilt. Low friction torque? > Dunno. I was always told that if your gearbox has low friction you can > easily tell (very noisy). > Chris > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=506811#506811 > > ________________________________ Message 7 _____________________________________ Time: 02:29:50 PM PST US From: Pete Zut Subject: Re: Europa-List: Classic Exhaust Great tip - thx Tim! After three TIG repairs on my classic (approaching the 500hr mark), next time I will do the same! Cheers, PeteZ C-GNPZ On Tue, May 17, 2022 at 5:23 PM timward wrote: > Hi Roger, > For your information only, I replaced all the header flanges of the > original Europa Classic Exhaust with the stronger recommended Rotax flang es > that fit into the cylinder heads. They came with the engine. The Europa > flanges were of poor quality and didn=99t fit well. > Local engineer did it. Where are the cracks occurring? > Will venture over to the motherland soon and may be able to catch up with > a pint? > Cheers, > Tim > > Sent from my iPad > Tim Ward > 12 Waiwetu Street, > Fendalton, > Christchurch, 8052 > New Zealand. > ward.t@xtra.co.nz > 021 0640221 > > On 18/05/2022, at 8:48 AM, SHERIDAN Roger < > RSheridan@specialist-aviation.com> wrote: > > =EF=BB > > Good Evening All, > > I have suffered another cracked exhaust header and wonder it may be time > for a replacement. > 6-8 weeks lead time from CKT & just wondering if anyone in UK might be > able to help. > > If so, please email me direct at rogersheridan@mac.com > > Thanks. > > > ------------------------------ > > > Roger Sheridan > Line Pilot > > +44 (0) 1737 822 885 > > BE GREEN, READ FROM THE SCREEN > > [image: imaged354b4.PNG] > [image: image9b2ed7.PNG] [i mage: > imageace486.PNG] > > Specialist Aviation Services Limited =93 Registered in England and Wales > No:1848773 > Registered office / HQ: Gloucestershire Airport, Staverton, Cheltenham, > Gloucestershire GL51 6SS > > This message and any attachments are confidential and intended only for > the use of the person to whom they are addressed. If you are not the > intended recipient, you must not use, copy or distribute this message or > any attachments. Any such action may be unlawful. If you have received th is > message in error, please notify us immediately by replying to the message > and delete it from your computer. Messages sent to and from us may be > monitored. > Internet communications may be intercepted, corrupted, lost, arrive late > or incomplete, or contain viruses. Therefore, we do not accept > responsibility for any errors or omissions that have arisen as a result o f > email transmission or for viruses. It is your responsibility to conduct > your own virus checking. If verification is required, please request a > hard-copy version. Any opinions expressed are those of the author and do > not necessarily represent those of the company. > > ------------------------------ > > > Scanned by SystemForce I.T. PRMX Security System =C2=AD=C2=AD > > ________________________________ Message 8 _____________________________________ Time: 04:01:54 PM PST US Subject: Europa-List: Re: Arplast Propeller problems From: "BobD" Further to my previous post concerning the Arplast PV50 Propeller and Controller. I was advised to contact Mark Burton of Smart Avionics to learn of a small hardware alteration that had been found to extend the life of the Electric Motor. With his permission, I have copied his response below. "What I have recommended in the past is to add a 2 ohm resistor into the wire from the the controller to the PV-50 motor to limit the current surge when the controller starts the motor moving which should reduce the chance of the motor burning out. The easiest place to install the resistor is near the bracket on the back of the gearbox as you show in the photo. Here's a link to a suitable resistor. https://uk.farnell.com/arcol/hs10-2r-f/resistor-wirewound-2r-1-solder/dp/2678652?st=hs10 I like this type of resistor as it is very sturdy and the unlikely to fail. A lot of resistors have relatively feeble wires. Mounting is not critical at all. It's worth noting that Arplast themselves recommended fitting a resistor after they became aware that I was advocating doing that." -------- 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=506817#506817 ________________________________ Message 9 _____________________________________ Time: 07:45:23 PM PST US Subject: Europa-List: Re: airmaster compatible prop choices for the mono? From: "Area-51" The airmaster hubs mostly use whirlwind blades which have quite a unique shaft profile. What happened to your airmaster hub Peter? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=506819#506819 ________________________________ Message 10 ____________________________________ Time: 07:53:21 PM PST US Subject: Europa-List: Re: Gearbox dog wear (pockets) and Warpdrive props? From: "Area-51" The warpdrive blades work great and are the heaviest of all composites; (they are did composite, heavy) Bolly blades on the other hand are one of the lightest and share the same shaft profile; so interchangeable and your easiest solution. If you want to read more there's a great write up on stolspeed website Read this topic online here: http://forums.matronics.com/viewtopic.php?p=506821#506821 ------------------------------------------------------------------------------------- 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.