---------------------------------------------------------- RV-List Digest Archive --- Total Messages Posted Fri 05/04/07: 14 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 02:29 AM - Re:looking for a prop () 2. 04:21 AM - Re: looking for a prop (Thomas Lukasczyk) 3. 05:20 AM - Re: Re:looking for a prop (Steve Eberhart) 4. 05:21 AM - Humble Apology to Roby Knox (Bob Snedaker) 5. 05:38 AM - Humble Apology to Robby Knox (Bob Snedaker) 6. 05:56 AM - Re: Flying without gear leg fairings (Tim Bryan) 7. 06:11 AM - Re: Re:looking for a prop (Bob) 8. 06:23 AM - Re: Flying without gear leg fairings (Tom & Cathy Ervin) 9. 06:27 AM - Re: Re:looking for a prop (Bob Collins) 10. 07:34 AM - Oil Threads on Prop Bolt? (Matt Jurotich) 11. 07:52 AM - Re: Re:looking for a prop (Konrad L. Werner) 12. 08:03 AM - Re: looking for a prop (Tracy Crook) 13. 09:39 AM - Re: looking for a prop (Ron Lee) 14. 09:35 PM - Exhaust Gasket Installation Question (Dwight Frye) ________________________________ Message 1 _____________________________________ Time: 02:29:46 AM PST US From: Subject: RV-List: Re:looking for a prop >From: "Eric Whiteside" >Subject: RV-List: looking for a prop By far the TOP fixed pitch prop choice is the Sensenich. There is no faster better performing fixed pitch prop on the marked BAR NONE, and that has been proven by Van. You could pop for a new BA hartzell for $5,500 and that is the way to go if you want to stay constant speed. --------------------------------- Ahhh...imagining that irresistible "new car" smell? Check outnew cars at Yahoo! Autos. ________________________________ Message 2 _____________________________________ Time: 04:21:13 AM PST US From: "Thomas Lukasczyk" Subject: RV-List: Re: looking for a prop Hi Eric Take a look at the MT-170_R185-3E. It is a fixed pitch wooden prop with stainless steel protected leading edges. It is also covered by fiberglass. I think it is perfectly pitched for a RV-4 powered by an O-320 (160hp). I am reading exactly 2700rpm at full throttle and top speed. http://www.rv-4.de/ Thomas, rv-4 0-320 -- "Feel free" - 10 GB Mailbox, 100 FreeSMS/Monat ... Jetzt GMX TopMail testen: http://www.gmx.net/de/go/topmail ________________________________ Message 3 _____________________________________ Time: 05:20:22 AM PST US From: Steve Eberhart Subject: Re: RV-List: Re:looking for a prop gmcjetpilot@yahoo.com wrote: > >From: "Eric Whiteside" > >Subject: RV-List: looking for a prop > By far the TOP fixed pitch prop choice is the Sensenich. > > There is no faster better performing fixed pitch prop on the marked > BAR NONE, and that has been proven by Van. > > You could pop for a new BA hartzell for $5,500 and that is the way to > go if you want to stay constant speed. Dive for the foxholes, I can already hear all of the Catto owners pounding on their keyboards. Stay tuned. I have a 3 blade catto on order for my RV-7A project, but, it will not be flying until early next year. As soon as it arrives, my hangar mate is going to mount it on his RV-7 for comparison testing against his fixed pitch Sensenich. Just wait for the documented scientific experiment. I know there will be some replies that comment on how prop efficiency goes down as the number of blades increase; the testing will give us the answers. Steve Eberhart RV-7A - On it's gear and O-360-A1A mounted do not archive ________________________________ Message 4 _____________________________________ Time: 05:21:40 AM PST US From: Bob Snedaker Subject: RV-List: Humble Apology to Roby Knox Roby, Very sorry to drag your good name thru the public mud. Thank you for your payment on 5/3/07. It seems that later life is causing me to go off half cocked from time to time, which always results in becoming red faced. If I can be of help to you with any of those projects let me know, I will do my best, quietly! Again, my humblest apologies, and thanks for your business. -- Sincerely, Bob Snedaker Fairings-Etc PO Box 5488 Goodyear, AZ 85338 623 203 9795 ________________________________ Message 5 _____________________________________ Time: 05:38:04 AM PST US From: Bob Snedaker Subject: RV-List: Humble Apology to Robby Knox Robby, Very sorry to drag your good name thru the public mud, and thank you for the payment on 5/3/07. It seems that later life is causing me to go off half cocked from time to time, which always results in becoming red faced. If I can be of help to you with any of those projects let me know, I will do my best, quietly! Again, my humblest apologies, and thanks for your business. -- Sincerely, Bob Snedaker Fairings-Etc PO Box 5488 Goodyear, AZ 85338 623 203 9795 ________________________________ Message 6 _____________________________________ Time: 05:56:11 AM PST US From: "Tim Bryan" Subject: RE: RV-List: Flying without gear leg fairings Exactly what I wanted to hear. Thanks Dale. I was just wanted to make sure they would be stable without the leg fairing and in particular the lower fairing. I will put leg fairings on, but want to keep the airplane flying as I get each step done. Thanks again to all answers Do Not Archive Tim > -----Original Message----- > From: owner-rv-list-server@matronics.com [mailto:owner-rv-list- > server@matronics.com] On Behalf Of densing@carolina.rr.com > Sent: Thursday, May 03, 2007 8:30 PM > To: rv-list@matronics.com > Subject: Re: RV-List: Flying without gear leg fairings > > Tim, > I flew my 6A for several hours with just the wheel pants. No leg > fairings and no lower intersection fairings. > Dale Ensing > > ----- Original Message ----- > From: Tim Bryan > Date: Thursday, May 3, 2007 3:46 pm > Subject: RV-List: Flying without gear leg fairings > To: rv-list@matronics.com > > > > > Hi all, > > > > I have been flying my RV-6 without wheel pants or leg fairings > > since October > > when it first took to the air. I had my wheel pants fitted but not > > the leg > > fairings. I am wondering if anyone sees a reason why I can't fly > > with the > > wheel pants on, and the leg fairings off. At least till I find > > another day > > I can spend working on it to fit the leg fairings. Too much flying > > to do > > and not enough days to work on it. > > > > Tim > > > > > > > > > > ________________________________ Message 7 _____________________________________ Time: 06:11:05 AM PST US From: Bob Subject: Re: RV-List: Re:looking for a prop >By far the TOP fixed pitch prop choice is the Sensenich. > >There is no faster better performing fixed pitch prop on the marked >BAR NONE, and that has been proven by Van. > And how do we know this? Where I can I find the raw data or the source information? How about a list of all the props used in the comparison evaluation? Was standard off the self props used, or did the tester test all variations of a prop from all manufacturers? Did the tester test custom built props? Was the exact same pilot, plane, altitude, weather used to evaluate all the different props? Was all the testing on the same day? If not, what errors were induced by different days? Did all the fuel used come from the same fuel batch? What sort of instrumentation was used to evaluate the prop? What were the props evaluated for? Speed, efficiency, climb, smoothness, vibration, weight etc? What testing methodology was used? Who did the data analysis? How confident was the tester in the final result based upon the data analysis? Bob RV6 "Wicked Witch of the West" ________________________________ Message 8 _____________________________________ Time: 06:23:45 AM PST US From: "Tom & Cathy Ervin" Subject: Re: RV-List: Flying without gear leg fairings Tim, I flew last season with just the wheel pants on my RV6-A.....No problems. Tom in Ohio ----- Original Message ----- From: "Tim Bryan" Sent: Friday, May 04, 2007 8:55 AM Subject: RE: RV-List: Flying without gear leg fairings > > Exactly what I wanted to hear. Thanks Dale. > > I was just wanted to make sure they would be stable without the leg > fairing > and in particular the lower fairing. I will put leg fairings on, but want > to keep the airplane flying as I get each step done. > Thanks again to all answers > Do Not Archive > Tim > >> -----Original Message----- >> From: owner-rv-list-server@matronics.com [mailto:owner-rv-list- >> server@matronics.com] On Behalf Of densing@carolina.rr.com >> Sent: Thursday, May 03, 2007 8:30 PM >> To: rv-list@matronics.com >> Subject: Re: RV-List: Flying without gear leg fairings >> >> Tim, >> I flew my 6A for several hours with just the wheel pants. No leg >> fairings and no lower intersection fairings. >> Dale Ensing >> >> ----- Original Message ----- >> From: Tim Bryan >> Date: Thursday, May 3, 2007 3:46 pm >> Subject: RV-List: Flying without gear leg fairings >> To: rv-list@matronics.com >> >> > >> > Hi all, >> > >> > I have been flying my RV-6 without wheel pants or leg fairings >> > since October >> > when it first took to the air. I had my wheel pants fitted but not >> > the leg >> > fairings. I am wondering if anyone sees a reason why I can't fly >> > with the >> > wheel pants on, and the leg fairings off. At least till I find >> > another day >> > I can spend working on it to fit the leg fairings. Too much flying >> > to do >> > and not enough days to work on it. >> > >> > Tim >> > >> > >> > >> > >> > > > > ________________________________ Message 9 _____________________________________ Time: 06:27:59 AM PST US From: "Bob Collins" Subject: RE: RV-List: Re:looking for a prop Information that may be of interest to folks in this discussion about props. Using the handy, dandy Rvator index, ( http://rvhotline.expercraft.com/articles/2006/rvator_index.html ), I found two articles that folks may want To read. 2003 Issue 5, page 3 "The best damn prop west of the Pecos: How much of a difference is there really?" (Van) 2004 Issue 1 page 4 "More on Props" (Van) 2002 Issue 5, page 14 "Behind the Scenes: There's more to matching engines and props than you might think" (Ken Scott, I presume) I don't know if all the answers people are seeking are in these articles -- probably not. But they might provide some points of reference. You know, in that last issue, there was a good article on the canopy frame that I'd forgotten all about until I used the index and searched on a lark. Bob -----Original Message----- From: owner-rv-list-server@matronics.com [mailto:owner-rv-list-server@matronics.com] On Behalf Of Bob Sent: Friday, May 04, 2007 9:06 AM Subject: Re: RV-List: Re:looking for a prop >By far the TOP fixed pitch prop choice is the Sensenich. > >There is no faster better performing fixed pitch prop on the marked BAR >NONE, and that has been proven by Van. > And how do we know this? Where I can I find the raw data or the source information? How about a list of all the props used in the comparison evaluation? Was standard off the self props used, or did the tester test all variations of a prop from all manufacturers? Did the tester test custom built props? Was the exact same pilot, plane, altitude, weather used to evaluate all the different props? Was all the testing on the same day? If not, what errors were induced by different days? Did all the fuel used come from the same fuel batch? What sort of instrumentation was used to evaluate the prop? What were the props evaluated for? Speed, efficiency, climb, smoothness, vibration, weight etc? What testing methodology was used? Who did the data analysis? How confident was the tester in the final result based upon the data analysis? Bob RV6 "Wicked Witch of the West" ________________________________ Message 10 ____________________________________ Time: 07:34:16 AM PST US From: Matt Jurotich Subject: RV-List: Oil Threads on Prop Bolt? About ready to put the prop on and have heard that one should oil the threads on the prop bolts for an O 360 with wood prop. I can't find documentation one way or the other. What did you do and why? Thanks Matthew M. Jurotich e-mail mail to: phone : 301-286-5919 ________________________________ Message 11 ____________________________________ Time: 07:52:05 AM PST US From: "Konrad L. Werner" Subject: Re: RV-List: Re:looking for a prop Really, I would prefer a Catto Composite (2 or 3 blade) over that heavy sucker any day! That would be "MY" best choice in a FP Prop! But I do agree that the blended airfoil Hartzell is probably the best constant speed choice. do not archive ----- Original Message ----- From: gmcjetpilot@yahoo.com To: rv-list@matronics.com Sent: Friday, May 04, 2007 3:28 AM Subject: RV-List: Re:looking for a prop >From: "Eric Whiteside" >Subject: RV-List: looking for a prop By far the TOP fixed pitch prop choice is the Sensenich. There is no faster better performing fixed pitch prop on the marked BAR NONE, and that has been proven by Van. You could pop for a new BA hartzell for $5,500 and that is the way to go if you want to stay constant speed. ________________________________ Message 12 ____________________________________ Time: 08:03:24 AM PST US From: "Tracy Crook" Subject: Re: RV-List: looking for a prop Music to my ears Ron. There is usually a speed penalty for going to 3 blades from 2. Catto must do a really fine job to give any increase at all. Any RPM difference in this swap? Tracy Crook (Catto 3 blade on 20B powered RV-8) ----- Original Message ----- From: Ron Lee To: rv-list@matronics.com Sent: Thursday, May 03, 2007 2:17 PM Subject: Re: RV-List: looking for a prop I had an Aymar Demuth on my O-360 RV-6A. I converted to a three blade Catto prop and only picked up about 3 mph so either is an option. Ron Lee ________________________________ Message 13 ____________________________________ Time: 09:39:15 AM PST US From: "Ron Lee" Subject: Re: RV-List: looking for a prop Tracy, I got right at 2700 RPM at full throttle at 8000' DA with the Aymar Demuth. I have yet to check the RPM under similar conditions with the Catto prop. If my recollection is right the speed delta was at 11,500' DA since it was too time consuming to fly southeast to get to lower altitude. Ron Lee ----- Original Message ----- From: Tracy Crook To: rv-list@matronics.com Sent: Friday, May 04, 2007 9:01 AM Subject: Re: RV-List: looking for a prop Music to my ears Ron. There is usually a speed penalty for going to 3 blades from 2. Catto must do a really fine job to give any increase at all. Any RPM difference in this swap? Tracy Crook (Catto 3 blade on 20B powered RV-8) ----- Original Message ----- From: Ron Lee To: rv-list@matronics.com Sent: Thursday, May 03, 2007 2:17 PM Subject: Re: RV-List: looking for a prop I had an Aymar Demuth on my O-360 RV-6A. I converted to a three blade Catto prop and only picked up about 3 mph so either is an option. Ron Lee ________________________________ Message 14 ____________________________________ Time: 09:35:36 PM PST US From: Dwight Frye Subject: RV-List: Exhaust Gasket Installation Question So ... again, I'm helping a friend install new exhausts on his RV-4, and I have (yet another) question. The exhaust system came with a full set of slow-blow gaskets. My understanding (potentially incorrect) was that these were installed dry (i.e. without any sealant, goop, or goo). Furthermore, no mention of sealant was made in the installation notes from Vetterman. However, upon pulling off the old badly rusted exhaust pipes it seemed that the old gaskets .. which clearly were identical to what we were about to install .. had some rubbery goo used on them. To goo, or not to goo. That is the question. Are we supposed to use some sealant? If so, what? Enquiring minds want to know. Thanks! -- Dwight ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message rv-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/RV-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/rv-list Browse Digests http://www.matronics.com/digest/rv-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.