MikeQ Posted February 7 Share Posted February 7 (edited) Hello picking up in this project and what with Hippocket forum going a bit oear shaped thought i’d post here. Started out as an RC conversion of a Mercury Tiger Moth but I redrew the outlines and laser cut new ribs with different spar layout etc. Power will be Irvine Mills 75 with RC carb, more of a two speed affair 🤣 Micro servers and Lemon Rx. Should be a few oz heavier than FF target weight but will still be OK hooefully. If only those legendarily vast fields of KielKraft long grass still existed, I’d have built it FreeFlight. Will post some figures later Edited February 7 by MikeQ 6 Quote Link to comment Share on other sites More sharing options...
MikeQ Posted February 7 Author Share Posted February 7 (edited) Bit more Edited February 7 by MikeQ 6 Quote Link to comment Share on other sites More sharing options...
2.4g Shaun Posted February 7 Share Posted February 7 (edited) Nice to see a proper bit of aeromodelling. 👍 Edited February 7 by 2.4g Shaun Typo 1 Quote Link to comment Share on other sites More sharing options...
Lowandslow Posted February 7 Share Posted February 7 Looks very impressive Mike I’m looking forward to seeing more of your posts. I notice you’ve sheeted the tail and fin is that to avoid warping 🤔 Quote Link to comment Share on other sites More sharing options...
MikeQ Posted February 7 Author Share Posted February 7 (edited) Hi the tailplane uses laminated 4Ib density 1/32 outline. The core is 5Ib 1/32 QTR grain. Its pretty light but strong construction. Its what the scale FF bods like Bill Dennis typically seem to use. I’ve used pretty much 4-6Ib wood apart from 1/8 spars. Even with all the ‘reworks’ it will still be stand off scale. Not quite as ‘far off’ as the Mercury original though 😂 Hopefully won’t need too much nose weight 😃 I’ll cover with Jap Esaki lightweight tissue over 10u mylar. mike PS I’ve seen a ‘proper Mercury Tiger Moth’ flying free flight and was a really good performer. Edited February 7 by MikeQ 3 Quote Link to comment Share on other sites More sharing options...
J D 8 Posted February 8 Share Posted February 8 Nice to see this build. I do not know who invented the core method of construction but Free Flight Scale champion Eric Coats did much to promote the method in the 70's being both light and resistant to warps. Important for a free flight type as once launched if trim is out there is nothing you can do to correct. Quote Link to comment Share on other sites More sharing options...
Chris Freeman 3 Posted February 8 Share Posted February 8 Very nice work, good to see the detail in construction Quote Link to comment Share on other sites More sharing options...
MikeQ Posted February 11 Author Share Posted February 11 (edited) Hi Lol, doesn’t look like much progress but on all morning with hinges. Elevators and rudder hinged with Robart 306 1/2a hinge point hinges. Some things just can’t be rushed 😂 295g (10.4 oz) at this point but balances where it should at this point. Reckon I can save 15g on wheels. Heavy ones on there right now. mike Edited February 11 by MikeQ 5 Quote Link to comment Share on other sites More sharing options...
Manish Chandrayan Posted February 12 Share Posted February 12 Hello! Mike. The fuselage jig pieces you are using, are they 3D printed? Quote Link to comment Share on other sites More sharing options...
Andy Gates Posted February 12 Share Posted February 12 Mike, Nice build. Can I be so bold as to recommend a couple of braces between the forward UC mount and your motor bearers? I can imagine the vibration of the single cylinder motor on those long (1/4" spruce?) bearers causing quite a bit of movement at the prop. Quote Link to comment Share on other sites More sharing options...
MikeQ Posted February 12 Author Share Posted February 12 (edited) Hi yeah, its like a mini jig. For smaller models. 3D printed them. 4mm studding with lock nuts and wing nuts. Good for small models. I’ll probably brace the bearers a little once i’ve managed to get all the gubbins up front and wherever it goes to balance. With a replica Mills up front its not going to be doing any Loops. mike Edited February 12 by MikeQ Quote Link to comment Share on other sites More sharing options...
Manish Chandrayan Posted February 13 Share Posted February 13 Thanks Mike, have sent you a PM Quote Link to comment Share on other sites More sharing options...
MikeQ Posted February 20 Author Share Posted February 20 Hi its last year since I bought any Radio gear. Have I missed the bus or are Lemon Rx not available anymore. Either that or I’ve forgotten how to use Google. mike Quote Link to comment Share on other sites More sharing options...
leccyflyer Posted February 20 Share Posted February 20 The Lemon receivers have undergone an upgrade and are readily available on eBay - Stuart MacKay at planesamtheman is an excellent supplier of all things Lemon. 1 Quote Link to comment Share on other sites More sharing options...
Ace Posted February 20 Share Posted February 20 Root729 on ebay has been my go to for years - no connection just very satisfied. 1 Quote Link to comment Share on other sites More sharing options...
Outrunner Posted February 20 Share Posted February 20 I've bought Lemon receivers from planesamtheman and root729 via eBay too. Good service from both and the receivers are excellent 1 Quote Link to comment Share on other sites More sharing options...
Martin McIntosh Posted February 23 Share Posted February 23 I did the same quite a few years ago using the plan from a Mercury kit. Had to guess at some of the formers which were not shown. Originally fitted a Mills but the comp. screw was rather inaccessible and insisted on unscrewing in flight, resulting in `engine still running` landings; it was tricky to start being inverted. Eventually electrified it (sorry). With a 3s 1000 and a tiny Orange caseless Rx + esc there was very little room left inside. Yours is obviously rud/ele which will be fine because they refuse to turn with ailerons alone. With all that wing area you need not worry about a little extra weight. Quote Link to comment Share on other sites More sharing options...
Manish Chandrayan Posted February 23 Share Posted February 23 Mike, I just noticed that the cabane lacks the 'N' struts. Did you add them post these pictures? Quote Link to comment Share on other sites More sharing options...
MikeQ Posted February 24 Author Share Posted February 24 Hi haven’t finished the cabanes and wing struts etc yet. Not my favourite … metal work 😆. Currently overthinking the wing strut attachments. Not too keen on the usual FreeFlight scale way of doing it but can’t think of a better way. Wing will have ailerons, just need to ‘cut them out’. Will require some extra sub spars etc. servos mounted in the wings. Will use a lemon caseless Rx, 2S 150-200mAh, BlueBird BMS101HV servos. cheers mike Quote Link to comment Share on other sites More sharing options...
Manish Chandrayan Posted February 24 Share Posted February 24 Mike if I may suggest? Install small hooks (fashioned out of some suitable piano wire) in the wings and fuse at appropriate location and install eyes (cotter pins anchored in?) at the strut ends. Install lower wings, hook on the struts lower end and fix on the top wings. The struts are then retained on with simulated flying and landing wires from a suitable legth of shirring elastic. That's how I have it on my 20 size Gordon Whitehead design Tiger Moth Quote Link to comment Share on other sites More sharing options...
Martin McIntosh Posted February 24 Share Posted February 24 Since you are fitting ailerons I would suggest coupled ail/rud with about a 30-50% mix. This makes turning much easier. I make this switchable with either the mix sw. or mixed on low rate rudder only so that full throw is available for stall turns. Quote Link to comment Share on other sites More sharing options...
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