Engine Doctor Posted September 26 Share Posted September 26 21 hours ago, Rich Just starting said: thanks for all your replies everyone Hi Rich no need to worry about the built in tank on a Merlin. It comes off with one screw. A tin tank of any shape and size it very easy to make . Merlins can have red or silver heads . The red one with a red spinner nut was called a "Super Merlin" often fitted with a quick star spring . Other than that they are identical . Dont use the starter spring as they vibrate and chew the back of the prop up even with a starter cam fitted. You can also get exhaust' for the merlin , they dont silence much but just point the exhaust and most of the oil away . Both Mils and Merlins arre great for this size model but Merlins tend to be around half the price or less. 1 Quote Link to comment Share on other sites More sharing options...
Rich Griff Posted September 27 Share Posted September 27 Hi Jd8, May I ask please, is the wing film from 4 max ? Also, any idea where I could source a clip on tank for a mills 75 please. Quote Link to comment Share on other sites More sharing options...
J D 8 - Moderator Posted September 27 Share Posted September 27 Try "Dens model supplies" and "Vintage model company" for covering. There are sometimes replacement Mills tanks on the e bay. Quote Link to comment Share on other sites More sharing options...
Rich Griff Posted September 27 Share Posted September 27 Cheers, tomboy wing looks good as does rest....hwyl. Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted September 27 Share Posted September 27 3 hours ago, Rich Griff said: Hi Jd8, May I ask please, is the wing film from 4 max ? Also, any idea where I could source a clip on tank for a mills 75 please. Try putting an add on either Sams or the BMFA . Worth a try and try to get a new alloy top as the tangs snap off. Quote Link to comment Share on other sites More sharing options...
Rich Griff Posted September 27 Share Posted September 27 Cheers ED, I have a few SAMS mags..... Quote Link to comment Share on other sites More sharing options...
Jon H Posted September 27 Share Posted September 27 I am normally an i/c only kinda guy but i would recommend at least considering an electrocution (thats the right term isnt it?) as small diesel engines are not the easiest of beasts to tame if you are brand new to to the hobby. Even in a club setting, you will probably struggle to find anyone with diesel engine expertise who can help you. I really like little diesel engines. The noise, the smell, even the mess! But they demand practice when it comes to getting them set up and running well, or indeed at all. There are plenty of people who can help you here but just be aware that there will be some learning time if you go ahead with a diesel engine. If you do go ahead, i would probably recommend a PAW as they are still in production and you can call the bloke who built it and ask for help. You are also getting an engine in perfect mechanical condition. These two things are not going to be possible with an ebay effort. 2 Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted September 27 Share Posted September 27 HI Jon its "electrification" 😉. Id hate to eletrocute my model . Quote Link to comment Share on other sites More sharing options...
kc Posted September 27 Share Posted September 27 (edited) For 'cute' little models like the Tomboy then Jon's fun use of English seems fine! I actually raised the idea of electric as an antidote to the enthusiam of the engine lovers who advised to fit old diesel engines. But I am glad that others also thought electric a good idea. Jon's advice to buy a PAW seems good - but unless you put Progress Aero Works into Google it's not easy to find them. Here is their webpage but I note that prices are dated 2021 and exclude VAT. Even at those 2021 prices it's probably cheaper to fit electric even allowing for a few spare Lipos and a basic lipo charger but of course the hobby is not about money but enjoying whatever you fancy. Your choice - but I do advise looking into whether the Tomboy is the right model or perhaps something a bit larger would suit. Then choose electric or i.c and only then buy the gear you really need for your chosen model. Edited September 27 by kc Quote Link to comment Share on other sites More sharing options...
Rich Griff Posted September 27 Share Posted September 27 Yes John, a new one would be better, after all that's what we *youngsters* saved for and started with way back when. If you were lucky you had your elder brothers hand-me-downs or similar etc..... At the age of about 8, took me ages to save up for a brand new silver Merlin, just as easy to use as a sabre, bought from the small model shop ( one of 3 in town ) just across the road. We were a greasey fingered family. Quote Link to comment Share on other sites More sharing options...
Rich Griff Posted September 27 Share Posted September 27 Electric... If only the toprc spit, 109, Mustang etc 450mm wingspan foamy inexpensive gearboxes were available ....hopefully arriving in the UK in a few days....... There will be others..... Quote Link to comment Share on other sites More sharing options...
leccyflyer Posted September 27 Share Posted September 27 2 minutes ago, Rich Griff said: Electric... If only the toprc spit, 109, Mustang etc 450mm wingspan foamy inexpensive gearboxes were available ....hopefully arriving in the UK in a few days....... There will be others..... The power train from one of the Top RC 450mm span models consists of a geared brushed motor on 1s and would be totally unsuitable for a model best powered by a Mills .75. They are suited to a model weighing no more than 75g or 3 ounces, ideally around 2oz. You couldn't build a 36" Tomboy to weigh 3 ounces AUW. 1 Quote Link to comment Share on other sites More sharing options...
GrumpyGnome Posted September 28 Share Posted September 28 12 hours ago, Engine Doctor said: HI Jon its "electrification" 😉. Id hate to eletrocute my model . Being an ic devotee, I suspect he chose the word carefully 🙂 Quote Link to comment Share on other sites More sharing options...
Rich Griff Posted September 28 Share Posted September 28 If the electric route was desired, what prop/motor/battery combination would be suitable please ? One of George's *economy bundles* at £25 ish perhaps ? But yes, a mills .75 model diesel engine. Vic probably designed the model with that engine in mind . Quote Link to comment Share on other sites More sharing options...
Phil Green Posted September 28 Share Posted September 28 40 minutes ago, Rich Griff said: If the electric route was desired, what prop/motor/battery combination would be suitable please ? One of George's *economy bundles* at £25 ish perhaps ? As previously posted, https://www.4-max.co.uk/ppom-2321.htm on 2S and a 7x3.5 is more than enough for a Tomboy. 2 Quote Link to comment Share on other sites More sharing options...
John Lee Posted September 28 Share Posted September 28 Mine is overpowered on a little 2108 bell motor & 8x4 prop so flies around on about 1/3rd throttle. Quote Link to comment Share on other sites More sharing options...
Rich Griff Posted September 28 Share Posted September 28 May I ask John, model covered in a *Tex* type covering ? What auw might it be please, battery, 36 inch span....she ( he as it's a "boy" ) looks heavy... Quote Link to comment Share on other sites More sharing options...
John Lee Posted September 28 Share Posted September 28 Yes it's covered in Solartex, it also has leading edge sheeting so there is no concession to weight avoidance & comes out at 300g RTF with 2 servos & a 3S 450mAh LiPo. This flying weight does not bother it all. It's not the way I would have done it but I picked it up unflown at a swapmeet, it just looked too nice to resist! It's a model I have always fancied but it was forever slipping down my build list so I snapped it up. 1 Quote Link to comment Share on other sites More sharing options...
Rich Griff Posted September 28 Share Posted September 28 Thanks John, info noted for future reference . Nice...... How is it duration wise/flight time ? I know that's very much like, how long is a bit of string, but..... Over ... Quote Link to comment Share on other sites More sharing options...
John Lee Posted September 28 Share Posted September 28 About 5 mins Rich Quote Link to comment Share on other sites More sharing options...
Rich Griff Posted September 28 Share Posted September 28 Thanks John, very much appreciated. .... Hunt for 2108 or similar motor begins, aeromodelling savings jar needs emptying a bit 😸 Quote Link to comment Share on other sites More sharing options...
John Lee Posted September 28 Share Posted September 28 I may have misread the label as it is scuffed up, it looks like this 2408 & the '1' on the label could easily be a '4': https://hobbyking.com/en_us/towerpro-brushless-outrunner-2408-21.html?___store=en_us Whilst no longer available from HK I'm sure you can find something similar from the far east suppliers. And for a fiver it won't empty the jar too much! Quote Link to comment Share on other sites More sharing options...
John Lee Posted September 28 Share Posted September 28 Scanned copy of the original 1950 Aeromodeller featuring the Tomboy attached. 444024836_Nov1950.pdf Quote Link to comment Share on other sites More sharing options...
Rich Griff Posted September 28 Share Posted September 28 Ok, I thanks for the correction, and the article...... Quote Link to comment Share on other sites More sharing options...
leccyflyer Posted September 29 Share Posted September 29 18 hours ago, Rich Griff said: Thanks John, very much appreciated. .... Hunt for 2108 or similar motor begins, aeromodelling savings jar needs emptying a bit 😸 Hasn't John just said that he has found that his Tomboy is rather overpowered with the 2408 motor? It could drop to 2 cells from 3 and be propped to suit. What exactly are you looking to find and fit that motor to? Phil has twice made the perfect suggestion for an electric flight power train for the Tomboy, giving about 50W, which will be just right for a Tomboy weighing 7-10 ounces. 1 Quote Link to comment Share on other sites More sharing options...
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