---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Fri 06/24/11: 11 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 12:19 AM - Re: Yak 52 display Olympic Airshow (CD 2.0) 2. 03:09 AM - Re: Nanchang mods (cjpilot710@aol.com) 3. 06:41 AM - Re: Nanchang mods (Harold Morley) 4. 06:47 AM - Housai supercharger (Harv) 5. 01:05 PM - Re: Nanchang mods (keithmckinley) 6. 01:29 PM - Yak-52 Fuel Tanks. (Etienne Verhellen) 7. 01:58 PM - Re: Yak-52 Fuel Tanks. (Didier Blouzard) 8. 02:55 PM - Stock 285 (n4829t@aol.com) 9. 04:38 PM - CJ Oil tank vent (Cpayne) 10. 07:57 PM - Re: Nanchang mods (gjhagstrom@aol.com) 11. 10:21 PM - Re: Yak-52 Fuel Tanks. (Etienne Verhellen) ________________________________ Message 1 _____________________________________ Time: 12:19:00 AM PST US Subject: Yak-List: Re: Yak 52 display Olympic Airshow From: "CD 2.0" Noel, excellent video and air display! thanks for posting. About outside loops, what speed do you get when diving inverted and does the Yak 52 have any slipstream effect to the left when going at low speeds in an outside loop? if so, do you correct it with the right rudder only or by putting the right wing a little down as well? Carl Read this topic online here: http://forums.matronics.com/viewtopic.php?p=343964#343964 ________________________________ Message 2 _____________________________________ Time: 03:09:30 AM PST US From: cjpilot710@aol.com Subject: Re: Yak-List: Nanchang mods I have not personally seen a set up like Hal's before. A rear louver system was produced on the 52TWs and 52Ws. I remember some the guys had a few bugs for a while. Aerodynamic & operational wise I'm not convinced they are any better. I'm of the old school where you don't go to something new unless what you have is worn out and needs to be replaced. Than spend the time and money on the new idea. An inverted oil system is do able. There is plenty of room under the cowl. Running a vent line to the tail, while it sound "clean" (unless you run it externally on the skin- yuk! ) the number of bulkheads and spar web you would need to transverses makes it a complicated task. Under the cowl you might use a modified Yak 52 system. The oil tank would need to modified with a oil pick up point on the top of the tank somewhere and a ball slid tube and "T" inserted in the feed line somewhere. All this is a do able project, which I contemplated at length one time. My decision not to, was based on the only 4 facts as I SEE them. 1. The CJ is not a good design (was not meant to be) for extended inverted flight. 2. I do not do extended inverted flight. 3. The short inverted flight that I do - do, not that much oil goes overboard. 4. I rather spend the money on petrol. BTAIM, that is the great thing our airplanes in the Experimental / Exposition cat. We can carry out our dreams and ideas to make a better mouse trap or at least one that has our mark on it. Me? I put on a gas machine gun and bomb shackles that work. (Plus I have a neat looking gun sight) Jim "Pappy" Goolsby (Well I'm off to Power Plant ground school. Maybe at 71 I'm ready for it) In a message dated 6/23/2011 10:39:55 P.M. Eastern Daylight Time, keith.mckinley@townisp.com writes: --> Yak-List message posted by: "keithmckinley" I'm curious if anyone has any experience with the following on a CJ: 1. A "closed" cowling mod like the one on Hal Morely's CJ with some sort of rear louvers. 2. An inverted oil tank system or taking the stock tank vent and running it to the rear of the airplane. Thank you, Keith McKinley -------- Keith McKinley 700HS KFIT Read this topic online here: http://forums.matronics.com/viewtopic.php?p=343958#343958 ________________________________ Message 3 _____________________________________ Time: 06:41:41 AM PST US Subject: Re: Yak-List: Nanchang mods From: Harold Morley Keith, I have not seen a cowling with rear vent controls. I use a Sukhoi iris on the front with a remote actuator. At 16,500' feet, 5 degrees f, for about 2.5 hours engine stayed warm. Also works well on descents. My oil tank vent line runs Sukhoi style from the tank to the rear of the plane. No oil down the side so far. Hal Sent from my iPad ________________________________ Message 4 _____________________________________ Time: 06:47:12 AM PST US Subject: Yak-List: Housai supercharger From: "Harv" Chaps Has anyone ever experimented with modifying the supercharger ratio on the CJ6? I've read the Chinese produced 'some' higher power versions of the HS6 radial engine, anyone care to guess how they did this? Rgs Harv Read this topic online here: http://forums.matronics.com/viewtopic.php?p=343986#343986 ________________________________ Message 5 _____________________________________ Time: 01:05:43 PM PST US Subject: Yak-List: Re: Nanchang mods From: "keithmckinley" After two 3 minute routines, the belly of my CJ is covered, even with the oil level fairly low. I don't do extended inverted flight either but just pushing over the top of a vertical maneuver or during a hesitation roll or even a HH is enough to let it rip. Realistically it's not a lot of oil but it just spreads out everywhere and gets into every conceivable crack and crevice. Plus that 25w-60 is like tar! I just started thinking about the possibility of running a vent tube to the tail after looking at a similar set up in a Pitts 12. Good luck with school! K -------- Keith McKinley 700HS KFIT Read this topic online here: http://forums.matronics.com/viewtopic.php?p=344015#344015 ________________________________ Message 6 _____________________________________ Time: 01:29:24 PM PST US From: "Etienne Verhellen" Subject: Yak-List: Yak-52 Fuel Tanks. Hi, Fuel tanks on our Yak-52 are leaking ... again ! We have repaired before but now they are in such a poor state they need replacing. Who has Yak-52 Fuel Tanks for sale ? Reply off-list to : janie@yak52.fr Kind Regards, Etienne Verhellen. ________________________________ Message 7 _____________________________________ Time: 01:58:20 PM PST US From: Didier Blouzard Subject: Re: Yak-List: Yak-52 Fuel Tanks. Etienne, Last week I was in a meeting with Belgium CAA and they told us about your mails to them. you have succeeded in grouding all the russian registered YAK in Belgium and France and Netherland will probably follow the move. We all thank you for your huge effort in telling everywhere that a RAK YAK is more dangerous than the other registrations. The result is in temporarily grouding. BRAVO. Now you can be known as the man who grouded the YAK We will remember that. Thanks again Didier BLOUZARD President APPAR +33 6 2424 3672 2011/5/20 Etienne Verhellen > ** > Hi, > > Fuel tanks on our Yak-52 are leaking ... again ! > > We have repaired before but now they are in such a poor state they need > replacing. > > Who has Yak-52 Fuel Tanks for sale ? > > Reply off-list to : janie@yak52.fr > > Kind Regards, > > Etienne Verhellen. > > > * > > * > > -- Didier BLOUZARD didier.blouzard@gmail.com 0624243672 ________________________________ Message 8 _____________________________________ Time: 02:55:44 PM PST US Subject: Yak-List: Stock 285 From: n4829t@aol.com Gents, I have a spare stock 285 engine I may part with... Please contact me off list if interested Jim P. Sent from my iPad ________________________________ Message 9 _____________________________________ Time: 04:38:40 PM PST US From: Cpayne Subject: Yak-List: CJ Oil tank vent Many operators, me included have run a line from the tank vent up to the engine case vent, located just forward of the generator and behind #1. I used a "Y" fitting with a hose barb. The gear case vent also pukes oil during "maneuvering" flight. I wrapped some filter media around it so it still vents. Others actually mount a small paper crankcase breather vent. Helps. Craig Payne ________________________________ Message 10 ____________________________________ Time: 07:57:48 PM PST US Subject: Re: Yak-List: Nanchang mods From: gjhagstrom@aol.com Pappy whats your design for the bomb shackles and gas m/g ?? I sure could use them .. Thanks ,Gary N34FP -----Original Message----- From: cjpilot710 Sent: Fri, Jun 24, 2011 3:09 am Subject: Re: Yak-List: Nanchang mods I have not personally seen a set up like Hal's before. A rear louver syste m was produced on the 52TWs and 52Ws. I remember some the guys had a few b ugs for a while. Aerodynamic & operational wise I'm not convinced they are any better. I'm of the old school where you don't go to something new unl ess what you have is worn out and needs to be replaced. Than spend the tim e and money on the new idea. An inverted oil system is do able. There is plenty of room under the cowl. Running a vent line to the tail, while it sound "clean" (unless you run i t externally on the skin- yuk! ) the number of bulkheads and spar web you would need to transverses makes it a complicated task. Under the cowl you might use a modified Yak 52 system. The oil tank would need to modified with a oil pick up point on the top of the tank somewhere and a ball slid tube and "T" inserted in the feed line somewhere. All this is a do able project, which I contemplated at length one time. My decision not to, was based on the only 4 facts as I SEE them. 1. The CJ is not a good design (was not meant to be) for extended inverted flight. 2. I do not do extended inverted flight. 3. The short inverted flight that I do - do, not that much oil goes overboa rd. 4. I rather spend the money on petrol. BTAIM, that is the great thing our airplanes in the Experimental / Expositi on cat. We can carry out our dreams and ideas to make a better mouse trap or at least one that has our mark on it. Me? I put on a gas machine gun an d bomb shackles that work. (Plus I have a neat looking gun sight) Jim "Pappy" Goolsby (Well I'm off to Power Plant ground school. Maybe at 71 I'm ready for it) In a message dated 6/23/2011 10:39:55 P.M. Eastern Daylight Time, keith.mck inley@townisp.com writes: > I'm curious if anyone has any experience with the following on a CJ: 1. A "closed" cowling mod like the one on Hal Morely's CJ with some sort of rear louvers. 2. An inverted oil tank system or taking the stock tank vent and running it to the rear of the airplane. Thank you, Keith McKinley -------- Keith McKinley 700HS KFIT Read this topic online here: http://forums.matronics.com/viewtopic.php?p=343958#343958===== ================ ==== - MATRONICS WEB FORUMS ======== =============== - List Contributio n Web Site sp; ============ ============= -= - The Yak-List Email Forum - -= Use the Matronics List Features Navigator to browse -= the many List utilities such as List Un/Subscription, -= Archive Search & Download, 7-Day Browse, Chat, FAQ, -= Photoshare, and much much more: - -= --> http://www.matronics.com/Navigator?Yak-List - -======================== -= - MATRONICS WEB FORUMS - -= Same great content also available via the Web Forums! - -= --> http://forums.matronics.com - -======================== -= - List Contribution Web Site - -= Thank you for your generous support! -= -Matt Dralle, List Admin. -= --> http://www.matronics.com/contribution -======================== ________________________________ Message 11 ____________________________________ Time: 10:21:49 PM PST US Subject: Yak-List: Re: Yak-52 Fuel Tanks. From: "Etienne Verhellen" New fuel tanks now received and fitted by Yak UK. Thanks. Etienne. Enjoy the summer. http://www.airport-data.com/aircraft/photo/129003L.html http://bac.msdp.eu/permanent-training -------- http://www.flyforfun.be/?q=yaks http://www.planecheck.com/eu/index.asp?ent=dv&id=6711 http://www.airshowactionphotography.com/san07/page1.html http://www.irishairpics.com/photo/1029467/L/Yakovlev-Yak-52/G-CBSS/Etienne-Verhellen/ Read this topic online here: http://forums.matronics.com/viewtopic.php?p=344046#344046 Attachments: http://forums.matronics.com//files/2010_05_15_wim_houquet_1_171.jpg ------------------------------------------------------------------------------------- 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.