Ronaldo Posted April 3, 2018 Share Posted April 3, 2018 Finished my Ben Buckle 'Great News', modded for electric. Cowl and lipo battery hatch held on with magnets. Cowl removal allows full access to motor and esc. The tailplane is now fixed rather than held on with rubber bands as per plan. I fitted a closed loop rudder which was simpler than bending awkward angles on a pushrod to reach the rudder horn The 'Great News' on the wing was done by printing it onto A4 self adhesive inkjet vinyl, cutting out the letters by hand with a scalpel and new blade to make a 'stencil' masking film. Then sprayed over with the same blue paint trim. Now just waiting for some half decent weather to take to the sky ! Quote Link to comment Share on other sites More sharing options...
DaveyP Posted April 3, 2018 Share Posted April 3, 2018 That's very nice, what did you cover it with and what paint did you use ? Quote Link to comment Share on other sites More sharing options...
Bob Cotsford Posted April 3, 2018 Share Posted April 3, 2018 Very pretty, you can't beat blue and yellow on a vintage model Quote Link to comment Share on other sites More sharing options...
Ronaldo Posted April 3, 2018 Author Share Posted April 3, 2018 Thanks DaveyP. I covered it with vintage yellow solartex, gave it 2 coats of 50/50 thinned dope. The paint is Halfords acrylic car paint, Fiat Capri Blue. A very nice paint, but was a bit expensive as you don't get much paint in a can, but once I started I had to carry on, also I loved the colour. Will look for a cheaper paint on my next build. Then finally I sprayed it all with 1 coat of clear lacquer. As you may know, sadly solartex is no longer in production , but luckily I have enough left for another couple of models. After that I will have to find an alternative covering. Quote Link to comment Share on other sites More sharing options...
Broken Prop Posted April 3, 2018 Share Posted April 3, 2018 Ronaldo, you have made a lovely job of that build. Fingers crossed for an uneventful maiden flight. Pete Quote Link to comment Share on other sites More sharing options...
Ronaldo Posted April 3, 2018 Author Share Posted April 3, 2018 Thanks Pete. Now waiting for sunshine and all the puddles in my club field to dry up. Bob Cosford , yep blue and yellow goes well together. Great looking model you got there ! Quote Link to comment Share on other sites More sharing options...
Biggles' Elder Brother - Moderator Posted April 3, 2018 Share Posted April 3, 2018 Lovely job Ronaldo! She looks gorgous. I bet you are looking foward to those warm summers' evenings with her just floting round the circuit. I've been told it will be July 19th between 7:15pm and 7:38pm this year Enjoy! BEB Quote Link to comment Share on other sites More sharing options...
Adrian Smith 1 Posted April 3, 2018 Share Posted April 3, 2018 As a recent convert to electric from IC, I can appreciate the work gone into modifying a vintage aircraft for electric. Great work Ronaldo! I wish you many great flights. Quote Link to comment Share on other sites More sharing options...
Geoff S Posted April 3, 2018 Share Posted April 3, 2018 Congrats on a lovely model. If she flies as well as she looks (and I'm sure she will) then it'll be a trouble free maiden. What is the drive train? motor, esc, battery. I'm always interested in other people's selections having done a few myself. I use a similar cowl attachment method with pegs into the firewall but attach with 3mm set screws accesses from the rear via the battery hatch. Geoff Quote Link to comment Share on other sites More sharing options...
Jimbo565 Posted April 3, 2018 Share Posted April 3, 2018 Ronaldo Very smart indeed,well done Bob. You still got the Eros ? Quote Link to comment Share on other sites More sharing options...
Bob Cotsford Posted April 3, 2018 Share Posted April 3, 2018 Posted by Jim Carss on 03/04/2018 16:38:18: Ronaldo Very smart indeed,well done Bob. You still got the Eros ? Yes Jim, it still gets an annual outing on the one warm, calm summer evening a year that we get. July 19th this year then BEB? Quote Link to comment Share on other sites More sharing options...
Ronaldo Posted April 3, 2018 Author Share Posted April 3, 2018 Posted by Geoff Sleath on 03/04/2018 16:34:38: Congrats on a lovely model. If she flies as well as she looks (and I'm sure she will) then it'll be a trouble free maiden. What is the drive train? motor, esc, battery. I'm always interested in other people's selections having done a few myself. I use a similar cowl attachment method with pegs into the firewall but attach with 3mm set screws accesses from the rear via the battery hatch. Geoff Thanks Geoff and everyone else for your comments (not sure I can wait till July 19th BEB, may have to fit floats for my club field lol) I'm using a tried and tested Prop Drive 5050 580k outrunner from Hobbyking, an 80amp Turnigy Plush esc with a separate castle 10amp bec, 5s lipo, and a 15x8 prop. This same setup works very well in another model, but I'm told it may be a little overpowered in the Great News, will have to see. Quote Link to comment Share on other sites More sharing options...
Biggles' Elder Brother - Moderator Posted April 3, 2018 Share Posted April 3, 2018 Oh yes I think that will give you a lot of power for this model. But, no problem, the throttle works in both directions BEB Quote Link to comment Share on other sites More sharing options...
Josip Vrandecic -Mes Posted April 3, 2018 Share Posted April 3, 2018 Hi Ronaldo , one real (and rare) classic work..... excellence and patience ... Congrats Quote Link to comment Share on other sites More sharing options...
SIMON CRAGG Posted April 3, 2018 Share Posted April 3, 2018 Good job! I am a great lover of all things Ben Buckle and my current eye candy is the Playboy. Unbelievable that these vintage models are still so popular today. How many of the current crop of "must have" models will still be around in 60+ years time?. One minor issue though...........they MUST have a decent four stroke installed for the true vintage experience!! Quote Link to comment Share on other sites More sharing options...
cymaz Posted April 3, 2018 Share Posted April 3, 2018 Posted by Biggles' Elder Brother - Moderator on 03/04/2018 15:54:07: Lovely job Ronaldo! She looks gorgous. I bet you are looking foward to those warm summers' evenings with her just floting round the circuit. I've been told it will be July 19th between 7:15pm and 7:38pm this year Enjoy! BEB Ah...an optimistic forecaster! 23 mins , as long as that!. BTW, excellent work Ronaldo Edited By cymaz on 03/04/2018 22:13:48 Quote Link to comment Share on other sites More sharing options...
Geoff S Posted April 3, 2018 Share Posted April 3, 2018 Posted by Ronaldo on 03/04/2018 17:33:09: Posted by Geoff Sleath on 03/04/2018 16:34:38: Congrats on a lovely model. If she flies as well as she looks (and I'm sure she will) then it'll be a trouble free maiden. What is the drive train? motor, esc, battery. I'm always interested in other people's selections having done a few myself. I use a similar cowl attachment method with pegs into the firewall but attach with 3mm set screws accesses from the rear via the battery hatch. Geoff Thanks Geoff and everyone else for your comments (not sure I can wait till July 19th BEB, may have to fit floats for my club field lol) I'm using a tried and tested Prop Drive 5050 580k outrunner from Hobbyking, an 80amp Turnigy Plush esc with a separate castle 10amp bec, 5s lipo, and a 15x8 prop. This same setup works very well in another model, but I'm told it may be a little overpowered in the Great News, will have to see. I think you'll have to be careful you don't rip the wings off with that set up. I think judicious throttle use will be necessary But as BEB writes, the throttle works both ways. I think that's more power than I had available when I maidened my 1/4 scale Mew Gull in December. Geoff Quote Link to comment Share on other sites More sharing options...
Basil Posted August 31, 2020 Share Posted August 31, 2020 I am a novice flyer starting late (very) in life, and need some advise.I bought a trainer, as advised. It was from some ones old collection. A Great news. It was orginally IC but the last owner converted it to electric. It is fitted with a Himodel motor whose identidy has worn away, it measuers 40mm diam x 39mm long, it has a Himodel pro 60amp esc with 5.5-22v sbec. The prop is 11 3/4" in Diam. The 'Can' is coloured blue with natural coloured ally ends. I have run it up on a watt meter using a 3c 2200 lipo, it rises to 60a about 1/2- 1/2+ throttle opening. Quickly opening the throttle it shoots up to 130+ a. As a novice this seems incorrect. What advice can you give me. Edited By Basil on 31/08/2020 11:31:10 Edited By Basil on 31/08/2020 11:33:08 Quote Link to comment Share on other sites More sharing options...
FlyinBrian Posted August 31, 2020 Share Posted August 31, 2020 Basil I suggest its not right. Can you provide some photos of the model and the equipment. Dimensions of the model too = Wingspan, Chord, weight and such. What make of WHATMETER are you using, If you have the instructions for the ESC please send a link or a photo, 5,5 to 22v seems strange perhaps the BEC IS 5.5Vand ESC will handle up to 6 cells (22 Volts) Edited By FlyinBrian on 31/08/2020 11:42:30 Edited By FlyinBrian on 31/08/2020 11:48:13 Quote Link to comment Share on other sites More sharing options...
Martian Posted August 31, 2020 Share Posted August 31, 2020 Lovely model and beautifully finished to Quote Link to comment Share on other sites More sharing options...
Geoff Gardiner Posted August 31, 2020 Share Posted August 31, 2020 I recently experienced the same symptom with a new setup in an edf model I had built, turned out to be a faulty ESC which HobbyKing replaced (without issue). Quote Link to comment Share on other sites More sharing options...
David Davis Posted August 31, 2020 Share Posted August 31, 2020 Basil I'm hardly an expert when it comes to electric flight but I've just finished a double sized Vic Smeed Tomboy which is about the same size as your Great News. It weighs five pounds including some 6ozs of lead which I added to the nose to get a better cg. I expect that your Great News will weigh about the same. With a 3S LiPo, and an 11 x 5.5 prop, my Axi 2820/10 motor draws 35 amps. Multiply 35 amps by 11.1 volts from the 3S LiPo and you get 388.5 watts. Divide 388.5 watts by 5, the weight of the model in pounds and you reach a figure of 77.6 watts per lb which is ample for a model of this type. Indeed if I give it full throttle on take off, it climbs far too quickly and threatens to stall. I am experimenting with smaller propellers to reduce the power. Now if your set up draws 130 amps and you multiply that by 11.1 volts, that's 1443 watts. Assuming your Great News weighs about 5 lbs, divide by 5 and you get 288.6 watts per lb which is competition aerobatic level! A vintage model like your Great News or my Tomboy will fly well on 50-60 watts per lb. I would suggest that someone has fitted an electric motor which is far too powerful for your model, either that or there's something wrong with your measuring equipment. George at 4-Max has an equivalent to my Axi at £34.49: https://www.4-max.co.uk/po-3541-1270.html With a motor like this I'm sure you'll be fine. Edited By David Davis on 31/08/2020 12:34:17 Quote Link to comment Share on other sites More sharing options...
Basil Posted August 31, 2020 Share Posted August 31, 2020 The model is this thread, "Great news". that why I added it to the thread.I cant do photos.Wieght app 1 kg - batt. Chord 11" span 72". Its a HiModel ESC. 60amp pro Bas Quote Link to comment Share on other sites More sharing options...
BackinBlack Posted August 31, 2020 Share Posted August 31, 2020 Not really enough info, can't find a motor matching the given size on HiModel website. Unusual, but could it be that it's propped for a 2S battery? David, I think the link should be : 3541/1270 motor . That would do nicely. Quote Link to comment Share on other sites More sharing options...
Bob Cotsford Posted August 31, 2020 Share Posted August 31, 2020 Specs for that esc are as follows: Type: Professional-60A Output: Continues 60A, Burst 80A up to 10 Secs. Voltage Input: Lithium : 2 – 6s or NiMH/NiCd 5 -18 Cells) b>Note: 4S and 4S above must be with BEC disabled BUILT-IN BEC (Battery Elimination Circuit) Output：3A @ 5V； Max Speed: 210,000rpm for 2 Poles BLM, 70,000rpm for 6 poles BLM, 35,000rpm for 12 poles BLM. (BLM: BrusheLess Motor) Size：70mm x 31mm x 15mm(length x width x high) Weight: 60g / 2.12oz Do you have anyone that you could borrow another motor and esc to swap with as there's something very, very wrong if it is drawing 130A! Even if it were propped for 2S, would it really draw 130A on 3S? Edited By Bob Cotsford on 31/08/2020 12:37:07 Quote Link to comment Share on other sites More sharing options...
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