Hunter

Thanks everyone for your views and input. All very interesting and constructive. i am leaning in the direction of fitting full depth ply bracing, that does seem a good option and plenty of strength added to centre section, as well as doubling up rear brace. But still mulling over balsa or spruce spars, but spruce does offer alittle more crash resistance and easier repair! Well that’s what I’m lead to believe!

Hi Tom, Apologies for delay, but up to my neck in re-skimming my house! The model I’m building is the Ben buckle version, and from what I’ve read, seems most are saying replace the spars with spruce as well as the centre section, but some say just beef up the centre section as it’s not that good, so I’m still pondering over it still! nice engine that is 35 fs? I’m going to be installing a four stroke something in the region of a 35 as yourself once I’ve sorted house out, I will be making a start! cheers mark

Thank you for your replies, as it will be only training model, no acrobatics! And as David mentioned, if powered with a small ic engine, and using hard balsa, with some strength added to centre section, moving dowel position closer to le, or peg n screw fixing, I shouldn’t have a problem, still I’m tempted to replace spars if material below par with spruce. would I be correct David, that you have cap strips on that wing? I know the four channel version does, was wondering if it’s possible to add them to three version wing, I guess it would mean trimming 1/16” around rib to allow for cap strip fitting. thanks All

Thanks all, using struts is anew one on me! But makes sense, I also will add strength to front cabin and move dowel position, even might go for the peg n screw fixing which was something I was proposing earlier, but will finalise later thank you

Hi All, Very quick question! I’m just about to start building the super 60 three channel version wing, I’ve read many articles, that the wing spars should be replaced with spruce, I do intend to use spruce on the front top and bottom spars, but was just wondering about the single rear bottom spar, can that be left balsa or should I replace all three spars to spruce. your comments much appreciated mark

Good information thank you, I’m certain I will have further questions, once build starts in earnest! if anyone has any further advice regarding servos batteries ect ect I’m always pleased to hear from them Much appreciated

Thanks Cuban, I Intend to go 6 volts, and shall be investing in one of those rx switches, as I seem to remember someone else complaining about reliability of said switch’s! So thank you for that. going to have a look at those hitec servos hs311’s as most seem to think there pretty good

Thanks all I’ve taken all onboard!

Thanks David, I shall look into that, they are alittle cheaper only just! What would you recommend for flight battery mah mark

Hi, It will be ic

Hi All Just getting back into r/c aircraft, and have a Ben buckle super 60 to build I was hoping someone could recommend suitable servos, have so far looked at the Futaba su300 & su301, just need some recommendations on which one, the su300 are cheaper and I think they will do the job. Also what size flight battery, I assume a 6 volt system is in order? I look forward to your advice much appreciated mark

Shaun, yes I think a 2 cell will be used, I shall go take a look at this motor you have suggested, much appreciated for your help

Hi Shaun thanks for getting back to me. The finished model weight is approx 6.25 ozs, 175 grams, and the recommended prop is a GWS 7”* 5”, the original battery was a 350 mah lipo hope that helps with your recommendation cheers Mark

Hi, I was wondering if someone could suggest a brushless motor to replace a gws ips dx2 motor with 4:14:1 gearbox The model is a Peter Rake design, Plafz E1, 30” span originally powered by a IPS would appreciate your recommendations Many thanks Marl

Hi Kc, Thanks for the suggestion regarding battery location, yes I agree, placing battery in cowl on F1 below motor would be a good idea plenty of room in keep cg up front, and also agree on having battery connection behind F1 via hatch. I will get a battery either s2 or maybe s3, or both! although s2 seems ok, eithet In front of F1 or maybe behind. See how it goes! Still would like to swing a wood prop, around 9*5 in that region, and s2 seems ok, but please correct me if I’m wrong, of course I will check current draw, if a no go I will revert to electric prop. Been on balsa cabin site, and I did notice you can select grade of wood which is handy many thanks again mark

Thanks Tim, I will try balsa cabin, if they can select the right grade that be good. I built and tested Peters eindecker many years ago, and was a joy to fly, was in FSM, alas the aircraft was damaged when a ceiling collapsed! And think that put a stop to my flying until now! Just having to start from scratch! New tranny ect ect it goes on n on! cheers

Thanks Tim, I’ve noted down what you said regarding weight as far forward, obviously I will need to redesign firewall which shouldn’t be to difficult to fit motor and incorporate thrust lines ect. Will make a start on construction once I locate a good supply of balsa, found some but to soft for my needs. cheers

Thanks Kc, would it swing a wood prop?

Hi Outrunner Thanks for reply, much appreciated with your suggestions, I shall take a look at the motor you suggest and read up on there site cheers mark

Thanks PatMc, that seems a good combination, and good explanation, makes a lot of sense, just need to sort 2s battery out, let alone charger ect! Mark

Hi, Thanks for all your very interesting remarks, I shall digest all! And take note, and thanks outrunner your suggestion of motor seems just about right, Not having a computer, I can’t download motocalc or any others to test setups, so your suggestions will be on what I go on. Many thanks mark

Thanks, as I said brushless systems baffle me, so please bring on suggestions thanks mark

Hi All, It’s many many years since I built and flew ect electric powered aircraft, and with time on my side, I thought I would get back into it. But as expected, things change! Electronic and power system improved, and now I’m scratching my head trying to fathom out how to convert a speed 400 model into a brushless setup. I have a Peter rake plan from twenty years ago, of a 36” span, speed 400 motor via a graupner 2.33.1 gearbox, having built her, in her original design, which proved very successful, I would like to build her again, but convert to a brushless system. I’ve researched as best I can, asked many questions, and have been recommended the power train below Tornado Thumper V3 3536/08 1050KV SKU2979 Overlander XP2 30A Brushless ESC - RTF - SKU 2724 SKU2724 Supersport 2200mAh 3s 11.1v 35C with Deans SKU2567 APC 10x5 Thin Electric Propeller (E-LP10050E) APCLP10050E I would appreciate it, if someone could confirm that the suggested equipment would be suitable, or maybe some other combination. I look forward to your comments and input many thanks Mark