Old Pulse Flyer Posted January 17 Share Posted January 17 I have an old Ace High MK II Glider, it has a 6ft foam wing and a balsa fuse. Would like to revive it and upgrade to electric, have a limitation on prop size of 6-7". Any assistance in identifying a motor, esc, battery and prop is most appreciated. Quote Link to comment Share on other sites More sharing options...
Phil Green Posted January 17 Share Posted January 17 Cox Babe-Bee was about 45 watts if that helps Quote Link to comment Share on other sites More sharing options...
Paul De Tourtoulon Posted January 18 Share Posted January 18 A small drone (250) motor set up, props from 5" to 6" on them Quote Link to comment Share on other sites More sharing options...
Engine Doctor Posted January 18 Share Posted January 18 (edited) A 2012 2000 kv with a 6x3 running on a 3s will easily match / out perform a Cox. I use a 2750 KV with a 6x3 on a 1m span glider wnd vertical performsnce is outstandind. Pow is from a 1200 mah 3s . I get 15 to 20 min flight times easily as max power is only used for climout. Lms sell motors for around £15 but can be found on the net for around £4 If you can wait for delivery. Pic below model is light as it all foamwith carbon reinforning your glider will tame it some but thrust is far greater than a cox. Edited January 18 by Engine Doctor Quote Link to comment Share on other sites More sharing options...
Shaun Walsh Posted January 18 Share Posted January 18 (edited) An .049 engine will give you anywhere between 50 and 100 watts depending upon the exact engine, prop and fuel used. Looking at the Outerzone plan it shows the motor mounted on a power pod above the wing which, presumably, is reason for the prop diameter limitation. The model weight is up to 2 Lbs so 50 watts will give a very gentle performance, with 100 watts it will be a bit more enthusiastic. For a 6" prop you will be looking for a motor of around 1800 to 2200 Kv running on a 3s battery. Something like this: https://sussex-model-centre.co.uk/products/xxd-brushless-motor2212-2200kv?srsltid=AfmBOor4kYBG57DMNtqx48Ey7xmNyYtm1Ld9BPA7Ac5GJ0xg_U0j7BL- A 15A rated ESC should be adequate and provide enough current to drive 2 small analogue servos for rudder and elevator. https://www.4-max.co.uk/4m-hesc15aV2.html Edited January 18 by Shaun Walsh Quote Link to comment Share on other sites More sharing options...
Shaun Walsh Posted January 18 Share Posted January 18 A 6x3 or 6x2 prop should be suitable, don't forget to check the current draw with an ammeter. Also make sure that you get the angle of the power pod correct to minimise trim changes from motor on to motor off. Quote Link to comment Share on other sites More sharing options...
Shaun Walsh Posted January 18 Share Posted January 18 And if you want to minimise drag you could mount the motor at the rear of a modified power pod and fit a folding pusher prop or mount a lower Kv motor with a larger, more efficient, prop directly to the fuselage at F1 Quote Link to comment Share on other sites More sharing options...
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