---------------------------------------------------------- Europa-List Digest Archive --- Total Messages Posted Thu 02/08/07: 6 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 04:41 AM - Re: Corrosion Proofing (Graham Singleton) 2. 06:37 AM - Re: Corrosion Proofing (William Mills) 3. 07:17 AM - Re: Corrosion Proofing (Andrew Sarangan) 4. 11:19 AM - Re: Corrosion Proofing (Graham Singleton) 5. 12:17 PM - Trigear 912s Performance Figures (Brian and Pat Tarmar) 6. 01:39 PM - Re: Trigear 912s Performance Figures (Duncan & Ami McFadyean) ________________________________ Message 1 _____________________________________ Time: 04:41:57 AM PST US From: Graham Singleton Subject: Re: Europa-List: Corrosion Proofing Ron & all DPLF or os ot DP40 in UK? is good stuff, however one other thing to remember is that you must NOT sand it. It will become permeable if you do. AS I understand it it's designed to be a very thin impermeable membrane, so don't flat it off after it dries. Graham rparigor@suffolk.lib.ny.us wrote: > > Hello Phil > > > > My favorite corrosion protect ant is PPG DPLF! It is a 2 part epoxy > primer, it does not let in moisture. If you scuff surface it sticks better > than any paint I have tried. Works on aluminium, steel and fiberglass. > Downright amazing. It does not have UV inhibitors though. > > > Ron P. > > ________________________________ Message 2 _____________________________________ Time: 06:37:27 AM PST US From: "William Mills" Subject: Re: Europa-List: Corrosion Proofing Graham, What is your view on the Mod 72 method of protection? The spec calls for painting all surfaces with etch primer, allowing it to dry and then applying the ACF 50 before assembly. If the insert is a tight fit, presumably it will skin the etch primer back to the metal as it enters the frame tube. I like Ron's idea of assembling the inserts with the paint on both surfaces still wet. What is your opinion? Regards, William ----- Original Message ----- From: "Graham Singleton" Sent: Thursday, February 08, 2007 12:38 PM Subject: Re: Europa-List: Corrosion Proofing > > > Ron & all > DPLF or os ot DP40 in UK? is good stuff, however one other thing to > remember is that you must NOT sand it. It will become permeable if you do. > AS I understand it it's designed to be a very thin impermeable membrane, > so don't flat it off after it dries. > Graham > > rparigor@suffolk.lib.ny.us wrote: >> >> Hello Phil >> >> > >> My favorite corrosion protect ant is PPG DPLF! It is a 2 part epoxy >> primer, it does not let in moisture. If you scuff surface it sticks >> better >> than any paint I have tried. Works on aluminium, steel and fiberglass. >> Downright amazing. It does not have UV inhibitors though. >> >> >> Ron P. >> >> > > > ________________________________ Message 3 _____________________________________ Time: 07:17:15 AM PST US From: Andrew Sarangan Subject: Re: Europa-List: Corrosion Proofing You can also try alodine, which is a two step chemical dip process. For aluminum tubes it will work better than zinc chromate because it will coat the inside surfaces too. I used alodine and then gave it a coat of zinc chromate on top. I could not get zinc chromate from any of the local auto paint shops or marine shops. Shipping cost is pretty expensive if you buy from catalog stores because it is considered hazmat. I picked up a few cans from the local Grainger outlet for pretty cheap. It was something like $5 per can. A safer a alternative is zinc oxide paint. ________________________________ Message 4 _____________________________________ Time: 11:19:40 AM PST US From: Graham Singleton Subject: Re: Europa-List: Corrosion Proofing Ron's plan sounds good to me, I don't have much faith in etch primer over zinc plated steel. Could be wrong though, it might bond. Will it etch zinc? Graham William Mills wrote: > > > Graham, > What is your view on the Mod 72 method of protection? The spec calls > for painting all surfaces with etch primer, allowing it to dry and then > applying the ACF 50 before assembly. If the insert is a tight fit, > presumably it will skin the etch primer back to the metal as it enters > the frame tube. I like Ron's idea of assembling the inserts with the > paint on both surfaces still wet. What is your opinion? > Regards, > William5 ________________________________ Message 5 _____________________________________ Time: 12:17:08 PM PST US From: "Brian and Pat Tarmar" Subject: Europa-List: Trigear 912s Performance Figures Having just completed the test flying programme for PFA approval with a Woodcomp "Varia" 1700mm mechanically adjustable VP propeller on my Trigear with Rotax 912S, I would be very interested to hear some performance figures for other types of VP and constant speed propellers (no bull**** please!), so that comparisons can be made. I have this prop on sale or return from the UK agent, so can go to another model if necessary. The Woodcomp "Varia" has 2 scimitar blades and is adjusted by means of a simple cable arrangement in the cockpit and weighs no more than the Warpdrive it replaces. So far we are very pleased with the smoothe and quiet operation, an increase of 10 knots in cruising speed and better take-off performance - but how does it match the more exotic beasts? I hope you can assist. Brian Tarmar G-OBJT Classic with 912S XS firewall forward I choose Polesoft Lockspam to fight spam, and you? http://www.polesoft.com/refer.html ________________________________ Message 6 _____________________________________ Time: 01:39:59 PM PST US From: "Duncan & Ami McFadyean" Subject: Re: Europa-List: Trigear 912s Performance Figures Brian, I'm sure that William Mills will give you chapter-and-verse. But can you publish here your performance figures (including fuel burn if available) plus geometry of prop (diameter and twist distribution). I have a number of figures collected over the years from details that have been published by others. I'll dig them out, but they don't relate specifically to variable pitch props. Duncan McF. ----- Original Message ----- From: Brian and Pat Tarmar To: europa-list@matronics.com Sent: Thursday, February 08, 2007 8:09 PM Subject: Europa-List: Trigear 912s Performance Figures Having just completed the test flying programme for PFA approval with a Woodcomp "Varia" 1700mm mechanically adjustable VP propeller on my Trigear with Rotax 912S, I would be very interested to hear some performance figures for other types of VP and constant speed propellers (no bull**** please!), so that comparisons can be made. I have this prop on sale or return from the UK agent, so can go to another model if necessary. The Woodcomp "Varia" has 2 scimitar blades and is adjusted by means of a simple cable arrangement in the cockpit and weighs no more than the Warpdrive it replaces. So far we are very pleased with the smoothe and quiet operation, an increase of 10 knots in cruising speed and better take-off performance - but how does it match the more exotic beasts? I hope you can assist. Brian Tarmar G-OBJT Classic with 912S XS firewall forward I choose Polesoft Lockspam to fight spam, and you? http://www.polesoft.com/refer.html ------------------------------------------------------------------------------------- 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.