---------------------------------------------------------- TeamGrumman-List Digest Archive --- Total Messages Posted Mon 10/05/15: 2 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:27 AM - Re: AA5B vs. AG5B (FLYaDIVE) 2. 02:23 AM - Re: AA5B vs. AG5B (Mike Babin) ________________________________ Message 1 _____________________________________ Time: 12:27:44 AM PST US Subject: Re: TeamGrumman-List: AA5B vs. AG5B From: FLYaDIVE When you say book values, are you refering to AA On Sunday, October 4, 2015, cannuck wrote: > > > > At the risk of opening a can of worms, can anyone give me the real reasons > why AG5B aircraft are slower than AA5B? With my '77 Tiger, I could easily > beat book values, but many tell me the new airplanes just won't do that. > > I am hopefully going to start shopping for another bird soon, and really > wanted the extra panel space and 24VDC electrics of the newer airframe, but > NOT if it is at the expense of reason #1 to own a Tiger. > > Also, if slower as claimed, how much? Also, what remedies? > > -------- > AA1 and AA5B former (future?) owner > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=447679#447679 > > -- Sent from Gmail Mobile ________________________________ Message 2 _____________________________________ Time: 02:23:59 AM PST US From: Mike Babin Subject: Re: TeamGrumman-List: AA5B vs. AG5B My data points: I have a 2004 AG5B, Powerflow exhaust, Ly-Con port&polish, flow-matched, 63=9D prop, and I get 128 KTAS at full throttle and about 2650 RPM at 7500' pressure altitude. Consistently. My previous 1976 AA5A, converted to a Tiger with a factory new engine and bigger spar, with the Powerflow exhaust, no P&P, same prop, same altitude, and same loading/cg, could exceed redline at WOT, and would yield 135 KTAS. Consistently. The most common theory I=99ve heard to explain the lower speeds in the Tiger LLC aircraft is the design of the induction system, specifically that the air intake is in a relatively low pressure area of the cowl. I=99m not an engineer, so I can=99t verify that, but the inflight performance data is accurate. -Mike > On Oct 4, 2015, at 20:13 43, Ken Kirk wrote: > > AG5B Owner > > Trying to figure out how fast a Tiger cruises is impossible. You have to understand that folks tell less than the truth about their cruise speed figures. Some folks boast really high cruise speeds but then later you find out that they are flying above red line RPM or have significantly modified the airplane. Prop pitch also makes a difference, do you want a climb or a cruise. Do you have the port and flowed engine, do you have the fancy muffler system... the list goes on and on. > > I have given up on the subject. > > My AG5B will cruise at 135 knots. I have the muffler, the port and flowed but a climb prop. I suppose I could get a couple more or 3 knots by going to a cruise prop. > > On Sun, Oct 4, 2015 at 8:55 PM, cannuck > wrote: > > > At the risk of opening a can of worms, can anyone give me the real reasons why AG5B aircraft are slower than AA5B? With my '77 Tiger, I could easily beat book values, but many tell me the new airplanes just won't do that. > > I am hopefully going to start shopping for another bird soon, and really wanted the extra panel space and 24VDC electrics of the newer airframe, but NOT if it is at the expense of reason #1 to own a Tiger. > > Also, if slower as claimed, how much? Also, what remedies? > > -------- > AA1 and AA5B former (future?) owner > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=447679#447679 > > > > > > > > ========== > - > Grumman-List" rel="noreferrer" target="_blank">http://www.matronics.com/Navigator?TeamGrumman-List > ========== > FORUMS - > eferrer" target="_blank">http://forums.matronics.com > ========== > b Site - > -Matt Dralle, List Admin. > rel="noreferrer" target="_blank">http://www.matronics.com/contribution > ========== > > > > > > > -- > Ken Kirk > > > > ------------------------------------------------------------------------------------- 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.