---------------------------------------------------------- TeamGrumman-List Digest Archive --- Total Messages Posted Sun 09/12/10: 5 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 11:22 AM - Props? (dickbutz) 2. 12:46 PM - Re: Props? (FLYaDIVE) 3. 02:55 PM - Re: Props? (Gary Vogt) 4. 04:04 PM - Re: Props? (dickbutz) 5. 04:34 PM - Re: Props? (flyv35b) ________________________________ Message 1 _____________________________________ Time: 11:22:27 AM PST US Subject: TeamGrumman-List: Props? From: "dickbutz" I know that this has most likely been beaten to death but I need help in choosing a prop... I had a big ding in my original (63 pitch) Sensenich prop so I bought a new one (a 62 pitch), however I now have the original one at Sensenich being serviced as they said that there was plenty of metal in the prop to cut away and straighten the bad edge (it was only a 1/32 ding and the tip was not touched)...What I need to know is which is the prefered prop for speed the 62 or the 63 pitch or is there not much in it either way as I will change to the fastest one and sell the other. The interesting thing is that there actually was more metal in the older prop than the newer one, both wider and longer???...Dick -------- Dick Butz 1979 Tiger N4532P Read this topic online here: http://forums.matronics.com/viewtopic.php?p=312217#312217 ________________________________ Message 2 _____________________________________ Time: 12:46:14 PM PST US Subject: Re: TeamGrumman-List: Props? From: FLYaDIVE Dick: Go with the 63" I have a 62" on my O-320 HC and I have no problem with climb on the east coast. You have an O-360 so 63" should be NO PROBLEM. Barry On Sun, Sep 12, 2010 at 2:20 PM, dickbutz wrote: > > I know that this has most likely been beaten to death but I need help in > choosing a prop... > I had a big ding in my original (63 pitch) Sensenich prop so I bought a new > one (a 62 pitch), however I now have the original one at Sensenich being > serviced as they said that there was plenty of metal in the prop to cut away > and straighten the bad edge (it was only a 1/32 ding and the tip was not > touched)...What I need to know is which is the prefered prop for speed the > 62 or the 63 pitch or is there not much in it either way as I will change to > the fastest one and sell the other. > > The interesting thing is that there actually was more metal in the older > prop than the newer one, both wider and longer???...Dick > > -------- > Dick Butz > 1979 Tiger N4532P > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=312217#312217 > > ________________________________ Message 3 _____________________________________ Time: 02:55:48 PM PST US From: Gary Vogt Subject: Re: TeamGrumman-List: Props? Which prop is better depends on a whole slew of things. (1) is the engine strong? or is it tired? (2) Any drag reduction items? Wheel pants? or does it have a bunch of antennas sticking out? (3) Ported and polished cylinders? (4) Is your plane fat? i.e., what is it's empty weight (the real one, not the one you carry on the weight and balance) (5) Do you normally fly by yourself? I've tried everything up to a 69 inch pitch on my plane. It likes a 65. A 62 prop is pretty good all around. A 63 is a pretty good prop if you have a strong engine and your plane isn't fat. ________________________________ From: dickbutz Sent: Sun, September 12, 2010 11:20:11 AM Subject: TeamGrumman-List: Props? I know that this has most likely been beaten to death but I need help in choosing a prop... I had a big ding in my original (63 pitch) Sensenich prop so I bought a new one (a 62 pitch), however I now have the original one at Sensenich being serviced as they said that there was plenty of metal in the prop to cut away and straighten the bad edge (it was only a 1/32 ding and the tip was not touched)...What I need to know is which is the prefered prop for speed the 62 or the 63 pitch or is there not much in it either way as I will change to the fastest one and sell the other. The interesting thing is that there actually was more metal in the older prop than the newer one, both wider and longer???...Dick -------- Dick Butz 1979 Tiger N4532P Read this topic online here: http://forums.matronics.com/viewtopic.php?p=312217#312217 ________________________________ Message 4 _____________________________________ Time: 04:04:29 PM PST US Subject: TeamGrumman-List: Re: Props? From: "dickbutz" Which prop is better depends on a whole slew of things. (1) is the engine strong? or is it tired? The engine is mid time and the lowest compression is 72 (the rest above 75) (2) Any drag reduction items? Wheel pants? or does it have a bunch of antennas sticking out? The usual antennas and wheel pants ...New paint and glass (3) Ported and polished cylinders? No, stock (4) Is your plane fat? i.e., what is it's empty weight (the real one, not the one you carry on the weight and balance) Book weights not excessively heavy (5) Do you normally fly by yourself? Mostly by myself but 1/2 the time with a co-pilot I've tried everything up to a 69 inch pitch on my plane. It likes a 65. A 62 prop is pretty good all around. A 63 is a pretty good prop if you have a strong engine and your plane isn't fat. Looks like I will put the 63 back on but will this make much difference in ground speed?...Dick -------- Dick Butz 1979 Tiger N4532P Read this topic online here: http://forums.matronics.com/viewtopic.php?p=312238#312238 Attachments: http://forums.matronics.com//files/cimg1110_212.jpg ________________________________ Message 5 _____________________________________ Time: 04:34:05 PM PST US From: "flyv35b" Subject: Re: TeamGrumman-List: Props? If you want more speed at the same rpm I'd go with the 63" pitch as that was the standard cruise prop. Most typical Tigers can turn 2700 rpm full throttle down low and even higher up. The 62" pitch will turn 30-40 rpm more at full throttle but be 2-3 knots slower or thereabouts. And if you ever take you steps off and go to the flush beacon cap or add a PF exhaust you will want the higher pitch prop for sure. Cliff A&P/IA ----- Original Message ----- From: "dickbutz" Sent: Sunday, September 12, 2010 11:20 AM Subject: TeamGrumman-List: Props? > > I know that this has most likely been beaten to death but I need help in > choosing a prop... > I had a big ding in my original (63 pitch) Sensenich prop so I bought a > new one (a 62 pitch), however I now have the original one at Sensenich > being serviced as they said that there was plenty of metal in the prop to > cut away and straighten the bad edge (it was only a 1/32 ding and the tip > was not touched)...What I need to know is which is the prefered prop for > speed the 62 or the 63 pitch or is there not much in it either way as I > will change to the fastest one and sell the other. > > The interesting thing is that there actually was more metal in the older > prop than the newer one, both wider and longer???...Dick > > -------- > Dick Butz > 1979 Tiger N4532P > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=312217#312217 > > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message teamgrumman-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/TeamGrumman-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/teamgrumman-list Browse Digests http://www.matronics.com/digest/teamgrumman-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.