---------------------------------------------------------- KIS-List Digest Archive --- Total Messages Posted Mon 07/12/10: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 08:30 AM - Re: VG's for a propeller (Randy Ott) 2. 11:37 AM - Re: VG's for a propeller (Scott Stearns) ________________________________ Message 1 _____________________________________ Time: 08:30:49 AM PST US Subject: Re: KIS-List: VG's for a propeller From: Randy Ott I tried it . No noticeable different Sent from my iPhone On Jul 11, 2010, at 6:18 PM, "kent pyle" wrote: > Scott, I cut a piece of alumium sheet and used radiator hose clamps to mou nt it so it would shield the oil pan from the exhaust. Seems to work. Kent > ----- Original Message ----- > From: Scott Stearns > To: kis-list@matronics.com > Sent: Sunday, July 11, 2010 2:16 PM > Subject: Re: KIS-List: VG's for a propeller > > It's going well. My main problem is high oil temps. I opened up the cool ing exit and added a fixed cowl flap and the CHTs are good now. One of my e xhaust pipes runs close to the oil sump which may be heating the oil. The e ngine also only has 6 or 7 hours on it at flight power so the oil temp may c ome down with some more time on the engine. My pitch forces seem to be a lo t better than the original with my wider chord elevator. > > I'm getting 130 KIAS at about 110-120 HP without wheel pants. > > Scott > > > > --- On Sun, 7/11/10, F. Tim Yoder wrote: > > From: F. Tim Yoder > Subject: Re: KIS-List: VG's for a propeller > To: kis-list@matronics.com > Date: Sunday, July 11, 2010, 11:40 AM > > Scott, > > How is your testing going? > > Tim > ----- Original Message ----- > From: Scott Stearns > To: kis-list@matronics.com > Sent: Sunday, July 11, 2010 11:07 AM > Subject: Re: KIS-List: VG's for a propeller > > I refuse to put something that ugly on my beautiful polished carbon fiber p rince prop. > > It might work though. Do a search on laminar separation bubbles. That's w hat they are looking at. Some sailplane guys put that kind of thing on thei r wings. I would think that it's better to put the tape just prior to the p ont of max thickness so you get some laminar flow on the leading edge. > > Cheers, > Scott > > --- On Sun, 7/11/10, Galin Hernandez wrote: > > From: Galin Hernandez > Subject: KIS-List: VG's for a propeller > To: kis-list@matronics.com > Date: Sunday, July 11, 2010, 7:46 AM > > Has anybody used or know about these VG's for a propeller? > > http://www.aircraftspruce.com/catalog/pdf/1Vortelator.pdf > > Galin > N819PR > > > =nofollow target=_blank>http://www.matronics.com/Navigator?KIS-List > et=_blank>http://forums.matronics.com > llow target=_blank>http://www.matronics.com/contribution > > > > > href="http://www.matronics.com/Navigator?KIS-List">http://www.matronics. com/Navigator?KIS-List > href="http://forums.matronics.com">http://forums.matronics.com > href="http://www.matronics.com/contribution">http://www.matronics.com/c > > > =nofollow target=_blank>http://www.matronics.com/Navigator?KIS-List > et=_blank>http://forums.matronics.com > llow target=_blank>http://www.matronics.com/contribution > > > > > href="http://www.matronics.com/Navigator?KIS-List">http://www.matronics. com/Navigator?KIS-List > href="http://forums.matronics.com">http://forums.matronics.com > href="http://www.matronics.com/contribution">http://www.matronics.com/c > - Release Date: 07/10/10 01:36:00 > > ========================== ========= ========================== ========= ========================== ========= ========================== ========= > ________________________________ Message 2 _____________________________________ Time: 11:37:22 AM PST US From: Scott Stearns Subject: Re: KIS-List: VG's for a propeller Hi Tim, - I really want to get the airplane to the point where I can fly it anywhere at anytime and not have temperature problems and I have a ways to go to get there.- I've been looking at the dual pass oil coolers.- I'll probably have to get one.- I'm interested to see how fast this thing is too! - Cheers, Scott --- On Sun, 7/11/10, F. Tim Yoder wrote: From: F. Tim Yoder Subject: Re: KIS-List: VG's for a propeller Scott, - More brake in time could help bring the oil-temp. down. Although, as you go to higher power settings you will make more heat, as I know you know. - A couple of years ago I was talking to a Stewart Warner rep about a more ef ficient oil cooler / heat exchanger, of a similar size as the one I have, i n order-to make a switch easier. He asked me if mine was a single or dual pass. Of course I didn't know. After checking-it out, it-is a single p ass, of course. They do make a dual pass that is very close to the same phy sical size and much better at cooling. Something you might consider if you haven't all ready. - I am near Phoenix, AZ and oil cooling is a problem in the summer. I think I recall that you are in CA, if so then that isn't as bad. - I think we are all interested to hear what your max speed / cruise speeds a re! (SUPER KIS) - Tim ----- Original Message ----- From: Scott Stearns Sent: Sunday, July 11, 2010 12:16 PM Subject: Re: KIS-List: VG's for a propeller It's going well.- My main problem is high oil temps.- I opened up the c ooling exit and added a fixed cowl flap and the CHTs are good now.- One o f my exhaust pipes runs close to the oil sump which may be heating the oil. - The engine also only has 6 or 7 hours on it at flight power so the oil temp may come down with some more time on the engine.- My pitch forces se em to be a lot better than the original with my wider chord elevator. - I'm getting 130 KIAS at about 110-120 HP without wheel pants. - Scott - --- On Sun, 7/11/10, F. Tim Yoder wrote: From: F. Tim Yoder Subject: Re: KIS-List: VG's for a propeller Scott, - How is your testing going? - Tim ----- Original Message ----- From: Scott Stearns Sent: Sunday, July 11, 2010 11:07 AM Subject: Re: KIS-List: VG's for a propeller I refuse to put something that ugly on my beautiful polished carbon fiber p rince prop.- - It might work though.- Do a search on laminar separation bubbles.- That 's what they are looking at.- Some sailplane guys put that kind of thing on their wings.- I would think that it's better to put the tape just prio r to the pont of max thickness so you get some laminar flow on the leading edge.- - Cheers, Scott --- On Sun, 7/11/10, Galin Hernandez wrote: From: Galin Hernandez Subject: KIS-List: VG's for a propeller Has anybody used or know about these VG's for a propeller? http://www.aircraftspruce.com/catalog/pdf/1Vortelator.pdf Galin N819PR =nofollow target=_blank>http://www.matronics.com/Navigator?KIS-List et=_blank>http://forums.matronics.com llow target=_blank>http://www.matronics.com/contribution href="http://www.matronics.com/Navigator?KIS-List">http://www.matronics.c om/Navigator?KIS-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c =nofollow target=_blank>http://www.matronics.com/Navigator?KIS-List et=_blank>http://forums.matronics.com llow target=_blank>http://www.matronics.com/contribution href="http://www.matronics.com/Navigator?KIS-List">http://www.matronics.c om/Navigator?KIS-List href="http://forums.matronics.com">http://forums.matronics.com href="http://www.matronics.com/contribution">http://www.matronics.com/c =0A=0A=0A ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message kis-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/KIS-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/kis-list Browse Digests http://www.matronics.com/digest/kis-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.