---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Fri 10/05/18: 12 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:34 AM - Yak 52 updated wing spar is a must? (motoadve) 2. 08:20 AM - Re: Yak 52 updated wing spar is a must? (Jim Burke) 3. 08:29 AM - Re: Yak 52 updated wing spar is a must? (motoadve) 4. 08:39 AM - Re: Re: Yak 52 updated wing spar is a must? (Jim Burke) 5. 08:50 AM - Re: Yak 52 updated wing spar is a must? (Anthony Savarese) 6. 09:39 AM - Re: Re: Yak 52 updated wing spar is a must? (\) 7. 09:45 AM - Re: Yak 52 updated wing spar is a must? (Anthony Savarese) 8. 09:46 AM - Re: Re: Yak 52 updated wing spar is a must? (Sam Sax) 9. 07:51 PM - Re: Buying a CJ6 or Yak 52, what to look for? (LawnDart) 10. 08:44 PM - Re: Re: Yak 52 updated wing spar is a must? (Roger Kemp) 11. 08:54 PM - Re: Yak 52 updated wing spar is a must? (motoadve) 12. 11:35 PM - Re: Re: Yak 52 updated wing spar is a must? (JM) ________________________________ Message 1 _____________________________________ Time: 07:34:55 AM PST US Subject: Yak-List: Yak 52 updated wing spar is a must? From: "motoadve" Still looking for a plane , see some Yak 52s and prices are quite a bit lower than CJ6, Would you buy a Yak 52 without the updated wing spar? Has there been cases of wing separation? How many hrs are too many hrs on this kind of engines? Is 500hrs a lot? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=483614#483614 ________________________________ Message 2 _____________________________________ Time: 08:20:14 AM PST US From: "Jim Burke" Subject: RE: Yak-List: Yak 52 updated wing spar is a must? All the 52's in the US that I am aware have the wing mod. I don't personally know of any failures, but they obviously had a reason for issuing the service bulletin. I would not want to fly any airplane that did not have all AD's and service bulletins complied with. Most people agree that 1200 hour is not an unreasonable amount of time on the engine. As long as it sounds good, has good compression, and not making metal, I would have no reservations about flying a 1200 hour engine. Jim -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of motoadve Sent: Friday, October 5, 2018 10:35 AM Subject: Yak-List: Yak 52 updated wing spar is a must? Still looking for a plane , see some Yak 52s and prices are quite a bit lower than CJ6, Would you buy a Yak 52 without the updated wing spar? Has there been cases of wing separation? How many hrs are too many hrs on this kind of engines? Is 500hrs a lot? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=483614#483614 ________________________________ Message 3 _____________________________________ Time: 08:29:47 AM PST US Subject: Yak-List: Re: Yak 52 updated wing spar is a must? From: "motoadve" One Yak 52 I was looking at does not has the wing upgrade. The owner said it was overkill. I guess I wont be buying that one. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=483616#483616 ________________________________ Message 4 _____________________________________ Time: 08:39:50 AM PST US From: "Jim Burke" Subject: RE: Yak-List: Re: Yak 52 updated wing spar is a must? I agree! -----Original Message----- From: owner-yak-list-server@matronics.com [mailto:owner-yak-list-server@matronics.com] On Behalf Of motoadve Sent: Friday, October 5, 2018 11:29 AM Subject: Yak-List: Re: Yak 52 updated wing spar is a must? One Yak 52 I was looking at does not has the wing upgrade. The owner said it was overkill. I guess I wont be buying that one. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=483616#483616 ________________________________ Message 5 _____________________________________ Time: 08:50:11 AM PST US From: Anthony Savarese Subject: Re: Yak-List: Yak 52 updated wing spar is a must? There has never been a wing failure in a Yak 52. EVER! Including before SBs 59 and 60 were installed and the airplane was then de-rated to +5 -3Gs without the 2 SBs. 500 hours on an M14 is minimal. Unless the engine is installed on an unlimited aerobatic aircraft like a Sukhoi 26 etc. where they are operated at only two speeds....wide open throttle and idle. Dennis Sent from my iPhone > On Oct 5, 2018, at 10:34 AM, motoadve wrote: > > > Still looking for a plane , see some Yak 52s and prices are quite a bit lower than CJ6, Would you buy a Yak 52 without the updated wing spar? > > Has there been cases of wing separation? > > How many hrs are too many hrs on this kind of engines? > > Is 500hrs a lot? > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=483614#483614 > > > > > > > > > ________________________________ Message 6 _____________________________________ Time: 09:39:19 AM PST US From: "\"" Subject: Re: Yak-List: Re: Yak 52 updated wing spar is a must? You are going to find a lot guys on this list who favor the CJ over Yak and vice-versa. I have a lot of backseat time in Yaks as a formation check pilot and ferried one or two. Not much acro in them. I have over 2,000 hours in CJ-6s. A lot of acro time compared to the Yak. I've worked on both aircraft too. Maintenance wise the CJ-6 is easier to work on. In the Yak things are in tight places and between the firewall and engine is not much room to work. Systems are much the same and a lot of parts are interchangeable. The CJ does not an inverted oil/fuel system thus less maintenance there. It is easier to add long range tanks too and little extras like autopilots. Replacing a run out HS6a engine with a M-14p is very easy and many have done so which ups their valve at least the price of the engine. The CJ does all the same acro maneuver as the Yak - just not as snappy or quick and often needs to be flown through them. In spins, the Yak requires training with real Yak instructor. The CJ is a bit more forgiving but still need a good understanding. Any verticle maneuvers are very challenging with the small engines and unless the horizontal stab has been re-enforced, tail slides are a no-no. On cross-country flights, the CJ is far and away more comfortable and cheaper compared to the Yak. In formations, both aircraft are a joy. And the comradeship is more than just the pride in one's own airplane. Now the only Yak I ever considered owning was a Yak-50. BUT you give up having an extra seat. Otherwise, you can tell am a CJ guy. 23 years ago when trying to make my decision between the two, I flew both aircraft. First the Yak then the CJ-6. I suggest you do the same if you can. No matter which you pick at least you'll know which one is the one for you. THEN go look for the cheapest one you can afford. Jim (Pappy) Goolsby -----Original Message----- From: motoadve Sent: Fri, Oct 5, 2018 11:31 am Subject: Yak-List: Re: Yak 52 updated wing spar is a must? One Yak 52 I was looking at does not has the wing upgrade. The owner said it was overkill. I guess I wont be buying that one. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=483616#483616 ________________________________ Message 7 _____________________________________ Time: 09:45:49 AM PST US From: Anthony Savarese Subject: Re: Yak-List: Yak 52 updated wing spar is a must? Not true Jim. There are several 52s that were imported in the mid 90s that did not have the so-called heavy spar. (SBs 59 & 60). Carl Hays, when his shop was in San Diego, imported some of them. Dennis Sent from my iPhone > On Oct 5, 2018, at 11:19 AM, Jim Burke wrote: > > > All the 52's in the US that I am aware have the wing mod. I don't > personally know of any failures, but they obviously had a reason for issuing > the service bulletin. I would not want to fly any airplane that did not > have all AD's and service bulletins complied with. > > Most people agree that 1200 hour is not an unreasonable amount of time on > the engine. As long as it sounds good, has good compression, and not making > metal, I would have no reservations about flying a 1200 hour engine. > > Jim > > -----Original Message----- > From: owner-yak-list-server@matronics.com > [mailto:owner-yak-list-server@matronics.com] On Behalf Of motoadve > Sent: Friday, October 5, 2018 10:35 AM > To: yak-list@matronics.com > Subject: Yak-List: Yak 52 updated wing spar is a must? > > > Still looking for a plane , see some Yak 52s and prices are quite a bit > lower than CJ6, Would you buy a Yak 52 without the updated wing spar? > > Has there been cases of wing separation? > > How many hrs are too many hrs on this kind of engines? > > Is 500hrs a lot? > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=483614#483614 > > > > > > > > > > > > > ________________________________ Message 8 _____________________________________ Time: 09:46:51 AM PST US From: "Sam Sax" Subject: RE: Yak-List: Re: Yak 52 updated wing spar is a must? If you're looking for a roomy, easy/pleasure to fly (no vises), capable of elegant acro Warbird, the CJ6 is your ticket. If this is an attractive concept for you, then you'd appreciate the extra power and performance a CJ6 with the BIG Engine (M14-P) coupled with a 3 bladed propeller can offer... You may want to check out my Big Engine CJ-6A (Sax Machine) listing on barnstormers.com , you can find it by entering "CJ-6A" on the search tab or under Warbirds/CJ6 category - once you see the listing, make sure to also click on 'Display Specs Page' for the long list of other upgrades on this incredible CJ6... Sam Sax Miami, FL 305.215.5599 -----Original Message----- From: owner-yak-list-server@matronics.com On Behalf Of motoadve Sent: Friday, October 05, 2018 11:29 AM Subject: Yak-List: Re: Yak 52 updated wing spar is a must? One Yak 52 I was looking at does not has the wing upgrade. The owner said it was overkill. I guess I wont be buying that one. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=483616#483616 ________________________________ Message 9 _____________________________________ Time: 07:51:38 PM PST US Subject: Yak-List: Re: Buying a CJ6 or Yak 52, what to look for? From: "LawnDart" Ha - 1999 all over again [Rolling Eyes] CJ6 guys say buy CJ6s. Yak guys say buy whatever you want. Fly both and decide. Me, if I have to maintain a radial... one will speak to you more than the other. Read this topic online here: http://forums.matronics.com/viewtopic.php?p=483632#483632 ________________________________ Message 10 ____________________________________ Time: 08:44:56 PM PST US From: Roger Kemp Subject: Re: Yak-List: Re: Yak 52 updated wing spar is a must? Its okay if you restrict your flying to 4 Gs or less. Doc Sent from my iPad > On Oct 5, 2018, at 10:29 AM, motoadve wrote: > > > One Yak 52 I was looking at does not has the wing upgrade. > The owner said it was overkill. > > I guess I wont be buying that one. > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=483616#483616 > > > > > > > > > ________________________________ Message 11 ____________________________________ Time: 08:54:30 PM PST US Subject: Yak-List: Re: Yak 52 updated wing spar is a must? From: "motoadve" How reliable are these radial engines compared to a GA engine from Lycoming or Continental? I know they take oil, but are they pretty reliable? If you have the discipline to turn the prop before starting, check compresions at annual, and fly it often? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=483634#483634 ________________________________ Message 12 ____________________________________ Time: 11:35:11 PM PST US Subject: Re: Yak-List: Re: Yak 52 updated wing spar is a must? From: JM There have been examples of radial engines running for minutes (eight, if I remember well) when all the oil was already out. They can run for a long time when one or even two cylinders are completely out (I agree, it depends). I haven't seen any statistics but I see no reason why a radial should be less reliable than a standard GA engine. If you do the proper maintenance and take all the necessary precautions before starting. Only my 2 cents, Jan (Yak 50) On 06/10/2018, 05:58, "motoadve" wrote: How reliable are these radial engines compared to a GA engine from Lycoming or Continental? I know they take oil, but are they pretty reliable? If you have the discipline to turn the prop before starting, check compresions at annual, and fly it often? Read this topic online here: http://forums.matronics.com/viewtopic.php?p=483634#483634 ------------------------------------------------------------------------------------- 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.