Hoochykins Posted March 5 Author Share Posted March 5 (edited) Back on topic for the Sky 40, would these engines be ok with that? It's advising between a 40 and 45 engine for it? There is also the below: ASP 91 Irvine 40 (MK3) The O.S. FS-40S will be fine in the Sky 40 also won't it? Edited March 5 by Hoochykins Quote Link to comment Share on other sites More sharing options...
Caveman Posted March 5 Share Posted March 5 Hoochy, for my money, 40 to 46 two stroke or 52 to 61 four stroke would be ideal for the Sky 40. Anything less would be under-powered, anything more would be over-powered. I would, for simplicity and reasonably low cost, suggest a 46 two stroke would be ideal. There are a few suitable engines on Ebay at the moment, both new and used. I would look at new and new (other) as there’s more chance the engine will be undamaged/badly worn. GDB Quote Link to comment Share on other sites More sharing options...
Hoochykins Posted March 5 Author Share Posted March 5 2 hours ago, Caveman said: Hoochy, for my money, 40 to 46 two stroke or 52 to 61 four stroke would be ideal for the Sky 40. Anything less would be under-powered, anything more would be over-powered. I would, for simplicity and reasonably low cost, suggest a 46 two stroke would be ideal. There are a few suitable engines on Ebay at the moment, both new and used. I would look at new and new (other) as there’s more chance the engine will be undamaged/badly worn. GDB Thanka. I think I need to get myself on track with what I actually need first. I'll see how my second model goes (SLEC Coyote) and then decide what to build. I think I will have a Sky 40 incoming pre built so might get the 40 to go in this then decide, I don't think I'm up to a Ben Buckle kit yet... 1 Quote Link to comment Share on other sites More sharing options...
David Davis 2 Posted March 6 Share Posted March 6 There are several Irvine 40s and 46s available on eBay. Prices seem to range from £30-£50. The red ones are the newest but the older engines still run well. https://www.ebay.co.uk/sch/i.html?_from=R40&_trksid=p4432023.m570.l1311&_nkw=irvine+rc+engine&_sacat=0#item349b2437a6. OS engines may command slightly more money and the clones like ASP and SC slightly less. Quote Link to comment Share on other sites More sharing options...
Caveman Posted March 6 Share Posted March 6 This one caught my eye. I’ve got the 61 version of a similar vintage and it’s a really good engine. https://www.ebay.co.uk/itm/256427868592?itmmeta=01HR9CZXDMM0PQBE6PMARHV3BD&hash=item3bb44ac1b0:g:PrgAAOSw4e9l3wc5&itmprp=enc%3AAQAIAAAA8A9urEFJW9djzv1QzdLYONBiQtdhQlugna%2FOnbhwVwZLheen5e8aOID6k7VWESOlPVzrQ4cCAsU6FtVxATu1Wq4JilB%2F%2BwtOj67GJDiiIk3lv7YJlb0hdT2Ez559AwyPMw%2FxfgT9OxulsyEDJ48b4Q81IWBi801VJ24O4JrAhOJt6KSWoJKwdwDAJG0W8mgp1DMY4r9feTvX40Q06iafZImUOox9GZkRFSQ%2BroGKGoCBLp6r9VfOZiuTtNDVXCwq7DlCKSTkcDSi3KYjlCDhq1d%2FNlilAe9WW4Xmdr5Tcd78fWkzCET7jPUgCdMZiV40kA%3D%3D|tkp%3ABk9SR4rX_6zCYw Only a couple of hours to go until it’s finished though. GDB Quote Link to comment Share on other sites More sharing options...
Nigel R Posted March 6 Share Posted March 6 (edited) Red case Irvine 40 or 46 would be ideal for the Sky. I'd avoid the older silver case ones, bit of a minefield - although they are good runners, they do not have particularly effective silencers, and many of them have plastic carbs which are not great. The red case ones are a good engine all round, such as: https://www.ebay.co.uk/itm/166626726799 https://www.ebay.co.uk/itm/355438298923 https://www.ebay.co.uk/itm/276354592841 Edited March 6 by Nigel R 1 Quote Link to comment Share on other sites More sharing options...
Frank Skilbeck Posted March 6 Share Posted March 6 Loads of suitable engines on the BMFA classifieds, OS40, Super Tigre 51, TT 42, all less than £50. There's also a Merco 29 diesel. Tempting. Quote Link to comment Share on other sites More sharing options...
David Davis 2 Posted March 6 Share Posted March 6 Lots of good advice here. Here's a bit more. If you are going to buy a used 40-46 two stroke, avoid MDSs and Leos. Quote Link to comment Share on other sites More sharing options...
Hoochykins Posted March 6 Author Share Posted March 6 Metal door stop already noted but I will also avoid Leo's. Thanks. Quote Link to comment Share on other sites More sharing options...
Dave Brooks Posted March 6 Share Posted March 6 Engine prices on ebay remain surprisingly strong, especially for decent examples. Perhaps because there aren't that many new options? Much cheaper in person at a swapmeet if you can find one locally or ask around at the local club as someone will have some squirreled away! I am a fan of diesels for vintage type models. You will need to acquire the 'knack' but once you've got it the mechanical elegance is appealing. The smell and mess you will either love or hate. As objet d'arte they are much nicer than glow engines in my opinion and a more fitting pace/sound in a vintage type. This PAW19 flies my 52" Vic Smeed 'Electra' easily on just above tickover for beautifully relaxed flying. Its reasonably similar to a Junior 60. I have 3 PAW 19s in different models including the semi-scale 42" SE5. All are excellent runners and superbly engineered. Not super cheap but you can still buy them directly from PAW and support one of the few remaining UK manufacturers of such wonderful things. Worth every penny! 1 Quote Link to comment Share on other sites More sharing options...
David Davis Posted March 7 Share Posted March 7 (edited) If you're still interested in a diesel for that future vintage build, the Merco 29 mentioned by Frank Skillbeck could be a contender. Bloke wants £55 for it and it has the later more efficient silencer. https://classifieds.bmfa.org/acadp_listings/merco-29-diesel-rc Edited March 7 by David Davis Quote Link to comment Share on other sites More sharing options...
Frank Skilbeck Posted March 7 Share Posted March 7 Too late David, I mentioned it a clubmate who has several diesels and he promptly bought it! 1 Quote Link to comment Share on other sites More sharing options...
Hoochykins Posted March 7 Author Share Posted March 7 (edited) I've managed to source an SC 25a engine (new) so need an engine mount for it. Also id like a universal style one so I can make up a test bench for other engines. I guess I'll need to look into fuel tanks now also... What would you guys recommend for these? Edited March 7 by Hoochykins Quote Link to comment Share on other sites More sharing options...
Frank Skilbeck Posted March 7 Share Posted March 7 Something like this should fit the bill https://www.kingslynnmodelshop.co.uk/irvine-engine-test-stand/?gad_source=1&gclid=CjwKCAiA6KWvBhAREiwAFPZM7hM5I1h5D8s80RJuFdwDZmogVru4-avjv-eYJKVlqZDjQJ77g0N6yRoCczMQAvD_BwE I have one somewhere but have never used it as I always put the engines straight in a model 😁 Quote Link to comment Share on other sites More sharing options...
jrman Posted March 7 Share Posted March 7 Try Just Engines. They can supply engine mounts, test stands and fuel tanks (along with superb advice). Quote Link to comment Share on other sites More sharing options...
David Davis Posted March 7 Share Posted March 7 I assume that this SC 25a is for the projected vintage model. A four to six ounce tank, 120cc-180cc, will be ideal for this engine. I like the SLEC Maxi tanks myself. https://www.slecuk.com/maxi-fuel-tanks?search=Fuel tank&category_id=0 Quote Link to comment Share on other sites More sharing options...
Hoochykins Posted March 7 Author Share Posted March 7 31 minutes ago, David Davis said: I assume that this SC 25a is for the projected vintage model. A four to six ounce tank, 120cc-180cc, will be ideal for this engine. I like the SLEC Maxi tanks myself. https://www.slecuk.com/maxi-fuel-tanks?search=Fuel tank&category_id=0 It may be or if I can find a PAW 19 I will use that then keep the 25a for another model, the larger 40/45 will be for the Sky 40. 1 Quote Link to comment Share on other sites More sharing options...
Hoochykins Posted March 11 Author Share Posted March 11 I have purchased a PAW 19 MKII for £60 with carb and muffler 😁 Now what do I put it in?? I am in the process of building the SLEC Coyote and it looks like I will be getting a Sky 40 so will go glow for that. I want something vintage and large, a large glider or slow trainer kind of model. I do have to bear in mind the Coyote is only my first build using plans so if I will need something that isn't too challenging... Quote Link to comment Share on other sites More sharing options...
Dave Brooks Posted March 11 Share Posted March 11 Nice engine. Good choice Sir! I can recommend the Vic Smeed 'Electra' as a suitable airframe. Plans available for free on outerzone. So named I think because it was designed as very early single channel R/C model, nothing to do with electric power! Its large and light enough to fly slowly and is an inherently stable free flight type design. I chose this for an early build as it uses sheet sides so a lot less framework to build compared to many similar models. I simplified it further by building a flat horizontal stabiliser and it doesn't seem to have compromised its flying characteristics at all. Quote Link to comment Share on other sites More sharing options...
Hoochykins Posted March 11 Author Share Posted March 11 I like it but I need something that's mostly pre cut with balsa. I think going from just plans at the moment is a bit beyond my expertise Quote Link to comment Share on other sites More sharing options...
David Davis 2 Posted March 12 Share Posted March 12 (edited) The Ben Buckle Super 60 is a fine trainer and will suit the PAW. I've built two and bought another ready made. They are available as both three and four channel models., i.e, both with and without ailerons. They are fine trainers capable of handling a bit of a breeze. https://www.benbucklevintage.com/index.php?main_page=index&cPath=1_4 They are easy to build but if you've never built a stick and tissue style model before you'd be better off having the help of an experienced aeromodeller alongside you at least in the initial stages. On my latest build I have used De Luxe Materials Super Phatic glue for the first time and I can recommend it unreservedly. Pictures of my old Super 60s below. Edited March 12 by David Davis 2 Quote Link to comment Share on other sites More sharing options...
Rich Griff Posted March 12 Share Posted March 12 Outerzone Lockheed Electra, very nice, rubber powered and free flight, very nice indeed. Twin electric and a sloper ? Will get that one printed off full size plan. The Vic smeed Electra looks good, it will be it's a Vic Smeed. I have and RC paw 19 looking for a model. Was thinking of enlarged found centennial.... What ever you choose, learn how to start and run your paw 19. Model technic d1000, do not ( Do Not ) use an electric start ! You may consider a " wrap around cylinder warming blanket, electrically heated or similar, even a small "warm air" cylinder heater, particularly for colder days starting aid. As said, learn how to start that paw, it's s but of an animal but a great engine like all paws. Small fuel tank ! Quote Link to comment Share on other sites More sharing options...
Rich Griff Posted March 12 Share Posted March 12 (edited) That paw, it's a bit of an animal...enjoy. Edited March 12 by Rich Griff Quote Link to comment Share on other sites More sharing options...
Hoochykins Posted March 12 Author Share Posted March 12 42 minutes ago, Rich Griff said: Outerzone Lockheed Electra, very nice, rubber powered and free flight, very nice indeed. Twin electric and a sloper ? Will get that one printed off full size plan. The Vic smeed Electra looks good, it will be it's a Vic Smeed. I have and RC paw 19 looking for a model. Was thinking of enlarged found centennial.... What ever you choose, learn how to start and run your paw 19. Model technic d1000, do not ( Do Not ) use an electric start ! You may consider a " wrap around cylinder warming blanket, electrically heated or similar, even a small "warm air" cylinder heater, particularly for colder days starting aid. As said, learn how to start that paw, it's s but of an animal but a great engine like all paws. Small fuel tank ! Okay, why the small fuel tank? Does it need to be small to feed the fuel? Quote Link to comment Share on other sites More sharing options...
Rich Griff Posted March 12 Share Posted March 12 Very good fuel economy, much better than glow, slowish speed model, not much engine speed/thrust needed to keep the Vs Electra, or super 60, or any other vintage style model aloft, so even for say a 15 mins flight ( or more ?? ), not much fuel needed so no need for a large fuel tank, so fit a smallish tank. You will probably never run the paw absolutely flat out for long, if at all. You don't want to rip the wings off or have them "clap" ? Learn how to start and run the paw. Quote Link to comment Share on other sites More sharing options...
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