---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Wed 05/16/12: 10 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:28 AM - Re: FW: M 14 P (Chris Wise) 2. 05:02 AM - EI Feedback (Cpayne) 3. 05:47 AM - Re: Re: Snap rolls Yak 50 (gord) 4. 08:06 AM - Re: Re: Performance Charts CJ6a and Housai 6a (George Coy) 5. 08:47 AM - Re: Re: Performance Charts CJ6a and Housai 6a (Brian Lloyd) 6. 08:56 AM - Re: Re: Performance Charts CJ6a and Housai 6a (George Coy) 7. 09:43 AM - Re: Re: Performance Charts CJ6a and Housai 6a (Brian Lloyd) 8. 09:44 AM - Re: Performance Charts CJ6a and Housai 6a (Adrian Coop Cooper) 9. 09:54 AM - Re: Re: Performance Charts CJ6a and Housai 6a (Walter Lannon) 10. 10:18 PM - Nose gear fairing (Robin Hou) ________________________________ Message 1 _____________________________________ Time: 12:28:48 AM PST US From: "Chris Wise" Subject: RE: Yak-List: FW: M 14 P G'Day Dennis, Thanks for that and I shall forward it to my mate. Rhonda and Monty are champions. I bought a set of the 3 ring pistons for my engine. And fitted the Richard Goode supercharger gears. Naturally we did the vales, seats and only exhaust guides. What a nightmare grinding the exhaust seats as the buggers are bloody hard. Anyway all done and really came up good. Thanks again and cheers, Chris. From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of A. Dennis Savarese Sent: Tuesday, 15 May 2012 10:14 PM Subject: Re: Yak-List: FW: M 14 P Chris,' You should contact Barrett Precision Engines in Tulsa, Oklahoma. I guarantee you they will have the answers you need. 918-835-1089. Outstanding US overhaul shop. They have developed and have running a beautiful coil-over electronic ignition (one coil per spark plug) and fuel injection setup for the M14. Most likely you will speak to Rhonda first. Ask Rhonda if you can discuss some technical stuff with either Monte Barrett or Allen Barrett. They will also have cylinders for exchange. Rhonda's email address is Rhonda@BPAENGINES.com. Dennis A. Dennis Savarese 334-285-6263 334-546-8182 (mobile) www.yak-52.com Skype - Yakguy1 On 5/14/2012 4:58 PM, Chris Wise wrote: G'Day All, Can I please have some input re Ivor's questions. I have done all of my valves, intake and exhaust and used some grinding wheels (Dressed the angles with a diamond tip stone grinder in the lathe. One hell of a mess) and made some various size mandrels for both intake and exhaust to suite the slight differences of the guides. I found the exhaust seats to be extremely hard and went by the angles in the manual. Hey Chris, Do you know or could you find out if anyone knows what the M14P's factory exhaust valve face and exhaust valve seat angles should be ? Also, please ask if operators have had their exhaust valve seats re-cut and if so, did they encounter difficulty cutting the seat due to the hardness ? After hearing about your difficulties, I am contemplating making a diamond impregnated dressing stone for this task. Any takers ? Is there an exchange service for overhauled cylinders ? I have a mate who requires 3 urgently. I guess when the leakage exceeds the starting air flow, you have to either fit an electric start or FIX the problem, eh ? Cheers, Ivor Paech LAME ________________________________ Message 2 _____________________________________ Time: 05:02:24 AM PST US From: Cpayne Subject: Yak-List: EI Feedback I'm looking for feedback from folks with Electronic Ignition installed in their Yak or CJ as part of research for an article I'm doing for the Red Alert. Already been in contact with the folks at Barrett and they were very forthcoming with details. So far no info on the Blackwell system though I've been told that some of the Arizona CJ's have his setup installed. Owner/operator feedback is what I'm looking for. Maybe someone will have something up at Oshkosh. Please contact me if you have anything you can share. Incidentally, Magneto prices have been soaring lately if anyone missed it. Craig Payne ________________________________ Message 3 _____________________________________ Time: 05:47:33 AM PST US From: "gord" Subject: RE: Yak-List: Re: Snap rolls Yak 50 Thanks for the kind words Barry. It has been 24 years since I flew competitions and air shows. That makes me ....very rusty.... so I will take all the help I can get. Thank you all for the input. I am on my way to the airport to see if I can sort this out and then clean up the oily mess I made. Gord ________________________________ Message 4 _____________________________________ Time: 08:06:59 AM PST US From: "George Coy" Subject: RE: Yak-List: Re: Performance Charts CJ6a and Housai 6a Lets see if I did this right. -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Adrian Coop Cooper Sent: Tuesday, May 15, 2012 7:48 PM Subject: Yak-List: Re: Performance Charts CJ6a and Housai 6a --> Hi George. I am sure a lot of us would like to see the performance chart you mentioned. Any chance of posting the scan. If not, could you please email me a copy to coop@cj6.ca Thanks in advance. Coop. : :) -------- Coop Read this topic online here: http://forums.matronics.com/viewtopic.php?p=373131#373131 ________________________________ Message 5 _____________________________________ Time: 08:47:06 AM PST US Subject: Re: Yak-List: Re: Performance Charts CJ6a and Housai 6a From: Brian Lloyd On Wed, May 16, 2012 at 8:06 AM, George Coy wrote: > Lets see if I did this right. > Yes, they came through all right. Thank you. Are you sure these numbers are valid for the Huosai? The problem with engine power output calculation/graphs is that they don't directly translate into actual performance of the aircraft. Propeller efficiency plays a big part in translating hp into thrust and that changes with RPM, density, TAS, etc. So knowing just how much HP the engine is making is less useful than it might first seem. I don't know about the rest of you but I tend to fly using only a few different power settings at only a few different altitudes. It is pretty easy to check the performance at those settings and a few around it (you might change RPM) and then compare TAS and fuel consumption to see what works best. You will also get good real-world performance data for YOUR airplane. Book numbers are useful in order to figure out if your airplane is doing something grossly wrong but I can just about guarantee that they aren't the numbers for your airplane. Of course, loading has an effect as well. It is useful to check performance at different standard loadings. -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 95682 brian@lloyd.com +1.767.617.1365 (Dominica) +1.916.877.5067 (USA) ________________________________ Message 6 _____________________________________ Time: 08:56:05 AM PST US From: "George Coy" Subject: RE: Yak-List: Re: Performance Charts CJ6a and Housai 6a My sources say that the Housai engine is identical to the RussianAI14RA. Probably originally license built. From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Brian Lloyd Sent: Wednesday, May 16, 2012 11:44 AM Subject: Re: Yak-List: Re: Performance Charts CJ6a and Housai 6a On Wed, May 16, 2012 at 8:06 AM, George Coy wrote: Lets see if I did this right. Yes, they came through all right. Thank you. Are you sure these numbers are valid for the Huosai? The problem with engine power output calculation/graphs is that they don't directly translate into actual performance of the aircraft. Propeller efficiency plays a big part in translating hp into thrust and that changes with RPM, density, TAS, etc. So knowing just how much HP the engine is making is less useful than it might first seem. I don't know about the rest of you but I tend to fly using only a few different power settings at only a few different altitudes. It is pretty easy to check the performance at those settings and a few around it (you might change RPM) and then compare TAS and fuel consumption to see what works best. You will also get good real-world performance data for YOUR airplane. Book numbers are useful in order to figure out if your airplane is doing something grossly wrong but I can just about guarantee that they aren't the numbers for your airplane. Of course, loading has an effect as well. It is useful to check performance at different standard loadings. -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 95682 brian@lloyd.com +1.767.617.1365 (Dominica) +1.916.877.5067 (USA) ________________________________ Message 7 _____________________________________ Time: 09:43:04 AM PST US Subject: Re: Yak-List: Re: Performance Charts CJ6a and Housai 6a From: Brian Lloyd On Wed, May 16, 2012 at 8:56 AM, George Coy wrote: > My sources say that the Housai engine is identical to the RussianAI14RA. > Probably originally license built. > OK, thanks. Do we need to start the, "The CJ6A is/is-not a copy of the Yak," thread again? I haven't seen that for awhile. ;-) -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 95682 brian@lloyd.com +1.767.617.1365 (Dominica) +1.916.877.5067 (USA) ________________________________ Message 8 _____________________________________ Time: 09:44:39 AM PST US Subject: Yak-List: Re: Performance Charts CJ6a and Housai 6a From: "Adrian Coop Cooper" George. Thanks for the posting Coop. -------- Coop Read this topic online here: http://forums.matronics.com/viewtopic.php?p=373157#373157 ________________________________ Message 9 _____________________________________ Time: 09:54:04 AM PST US From: "Walter Lannon" Subject: Re: Yak-List: Re: Performance Charts CJ6a and Housai 6a The AI14RA is virtually identical to the Huosai 6. As far as I know the only difference is the carburettor adaptor. It is not identical to the Huosai 6A. Walt From: George Coy Sent: Wednesday, May 16, 2012 8:56 AM Subject: RE: Yak-List: Re: Performance Charts CJ6a and Housai 6a My sources say that the Housai engine is identical to the RussianAI14RA. Probably originally license built. From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of Brian Lloyd Sent: Wednesday, May 16, 2012 11:44 AM Subject: Re: Yak-List: Re: Performance Charts CJ6a and Housai 6a On Wed, May 16, 2012 at 8:06 AM, George Coy wrote: Lets see if I did this right. Yes, they came through all right. Thank you. Are you sure these numbers are valid for the Huosai? The problem with engine power output calculation/graphs is that they don't directly translate into actual performance of the aircraft. Propeller efficiency plays a big part in translating hp into thrust and that changes with RPM, density, TAS, etc. So knowing just how much HP the engine is making is less useful than it might first seem. I don't know about the rest of you but I tend to fly using only a few different power settings at only a few different altitudes. It is pretty easy to check the performance at those settings and a few around it (you might change RPM) and then compare TAS and fuel consumption to see what works best. You will also get good real-world performance data for YOUR airplane. Book numbers are useful in order to figure out if your airplane is doing something grossly wrong but I can just about guarantee that they aren't the numbers for your airplane. Of course, loading has an effect as well. It is useful to check performance at different standard loadings. -- Brian Lloyd, WB6RQN/J79BPL 3191 Western Dr. Cameron Park, CA 95682 brian@lloyd.com +1.767.617.1365 (Dominica) +1.916.877.5067 (USA) http://www.matronics.com/Navigator?Yak-Listhttp://forums.matronics.comhtt p://www.matronics.com/contribution ________________________________ Message 10 ____________________________________ Time: 10:18:56 PM PST US From: Robin Hou Subject: Yak-List: Nose gear fairing I found this ad on Trade-a-plane:http://www.trade-a-plane.com/detail/988262 .html=0A This CJ has nose gear fairing.-Does anyone have any information about thi s mod: manufacturer, price, ...?-How much speed can you expect from this fairing? ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message yak-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Yak-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/yak-list Browse Digests http://www.matronics.com/digest/yak-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.