Speedster Posted January 14, 2018 Share Posted January 14, 2018 2 meter C130 I got this nice plane for free It was cut by a Danish guy some years ago, and after it had spend many years in a basement it was given to me I will make it as a US coast guard plane. The plane is covered with normal Hobbyking covering film, and this is pretty easy and dont melt the foam, when the temp on the iron is set correctly. Edited By Speedster on 14/01/2018 13:25:26 Quote Link to comment Share on other sites More sharing options...
Speedster Posted January 14, 2018 Author Share Posted January 14, 2018 Quote Link to comment Share on other sites More sharing options...
Speedster Posted January 14, 2018 Author Share Posted January 14, 2018 Quote Link to comment Share on other sites More sharing options...
Speedster Posted January 14, 2018 Author Share Posted January 14, 2018 Quote Link to comment Share on other sites More sharing options...
Paul Marsh Posted January 14, 2018 Share Posted January 14, 2018 Can fly it with mine. Is a old GWS kit, has nav lights and looks good at dusk. Quote Link to comment Share on other sites More sharing options...
Geoff S Posted January 14, 2018 Share Posted January 14, 2018 It looks very good with the film covering. What motors are you using and what energy source - 4S LiPo or more? What temperature do you set your iron to avoid damaging the foam? I usually set mine to 135 degC for HK film but up to 150 deg for things like wing tips when maximum shrink is needed. Not that I'm great at covering Geoff Quote Link to comment Share on other sites More sharing options...
Mowerman Posted January 14, 2018 Share Posted January 14, 2018 Looks great good luck for the Maiden Quote Link to comment Share on other sites More sharing options...
Dave Hopkin Posted January 14, 2018 Share Posted January 14, 2018 Posted by Geoff Sleath on 14/01/2018 14:25:31: It looks very good with the film covering. What motors are you using and what energy source - 4S LiPo or more? What temperature do you set your iron to avoid damaging the foam? I usually set mine to 135 degC for HK film but up to 150 deg for things like wing tips when maximum shrink is needed. Not that I'm great at covering Geoff I set mien at 100 for glueing down and 120 for shrinkage....... 150 sounds very hot to me Quote Link to comment Share on other sites More sharing options...
Speedster Posted January 14, 2018 Author Share Posted January 14, 2018 I go for the reaction on the film, not so much about what the temp setting is on the iron. I use these motors. **LINK** They are for drones I had to cut the props, and after some measuring I will fly it on 4 cell. With 4 cell they pull 12 amp each. The plane is light weight, so it will be ok. Regards Soren Quote Link to comment Share on other sites More sharing options...
Geoff S Posted January 14, 2018 Share Posted January 14, 2018 I suppose for a model needing 4 motors it makes sense to use a set intended for a quad. Just wondering if 180 watts will be enough for even a light 2 metre model to give it some authority in the air. Dave Hopkin: HK film is very tolerant as regards heat. When my iron is set to 135 deg C I just use it very lightly when tacking the film before ironing it down properly. The 150 deg works well when a lot of shrinking is needed. Of course, those temperatures are what the reading on the iron says; there's no guarnatee that's the actual temperature and I haven't done any kind of calibrating. Geoff Quote Link to comment Share on other sites More sharing options...
J Moyler Posted January 15, 2018 Share Posted January 15, 2018 Geoff I think that you misread Speedster's comment above. I read it as 180 watt per motor (720 watts Total), so there should be plenty of power. I used to fly my 9 pound Piper Cub on similar power. JM Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted January 15, 2018 Share Posted January 15, 2018 Hi Speedster, If the HK link that you gave is the correct one, the specs indicate that those 2212s should be used with 2 or 3S Lipos. So, I'm wondering how long they would operate at 14+ V... ??? Cheers Chris Quote Link to comment Share on other sites More sharing options...
Speedster Posted January 15, 2018 Author Share Posted January 15, 2018 Posted by McG 6969 on 15/01/2018 08:13:05: Hi Speedster, If the HK link that you gave is the correct one, the specs indicate that those 2212s should be used with 2 or 3S Lipos. So, I'm wondering how long they would operate at 14+ V... ??? Cheers Chris I cut the prop diameter and it only pull 12 amp instead of the max 20 amp in the specs, and also pull less Watt. So there will be no problems running them on 4 cell. There would be a problem using 4 cell with the props ment for 2 and 3 cell, then it would pull too many Amps. If you go from 3 to 4 cell without changing the prop the Amp will go up around 33 % and then you proberbly will burn the esc or motor. This is why a Amp/watt meter is a must when changing prop size / and cell number. Soren Quote Link to comment Share on other sites More sharing options...
Geoff S Posted January 15, 2018 Share Posted January 15, 2018 Posted by J Moyler on 15/01/2018 07:10:52: Geoff I think that you misread Speedster's comment above. I read it as 180 watt per motor (720 watts Total), so there should be plenty of power. I used to fly my 9 pound Piper Cub on similar power. JM Yes, you're right. The total current draw is 48 amps so roughly 15 x 48 = 720 watts as you say. I thought it seemed a bit light on power and I had a senior moment Chris, as regards running a motor on 4S when the spec offers options of only 2 or 3S - the main limiting factor for a motor (to a first approximation and when the voltage is relatively modest electrically speaking) is the current and Soren has very sensibly ensured that it is a mere 12 amps/motor by reducing the load ie using smaller props. Even the quoted maximum current can be exceeded provided it's only for a very short time. It's heat that you're limiting which won't have time to build up if the current only lasts for a moment. It's still preferable to keep current well below the maximum, of course. Geoff Quote Link to comment Share on other sites More sharing options...
McG 6969 Posted January 15, 2018 Share Posted January 15, 2018 Thank you both, Soren & Geoff. I was just worried about Soren's choice and then possibly 'loosing' his C130 quite rapidly. So, another thing learned for me. Thanks gents & happy landings, Soren. Cheers Chris Quote Link to comment Share on other sites More sharing options...
Speedster Posted January 15, 2018 Author Share Posted January 15, 2018 All motor nacelles glued on Edited By Speedster on 15/01/2018 18:13:50 Edited By Speedster on 15/01/2018 18:14:34 Quote Link to comment Share on other sites More sharing options...
Steve Jones 2 Posted January 15, 2018 Share Posted January 15, 2018 Good luck . Here is my effort ...4 x 32 2 strokes Quote Link to comment Share on other sites More sharing options...
Speedster Posted January 16, 2018 Author Share Posted January 16, 2018 Poul and Steve,,, Nice birds Today I made the main landing gear, The flying weight will just under 2000 gram with a 4 cell 4000 Mha batt. PIC: Me in a RDAF C130 J in Afghanistan Regards Soren Edited By Speedster on 16/01/2018 20:07:58 Quote Link to comment Share on other sites More sharing options...
Speedster Posted January 17, 2018 Author Share Posted January 17, 2018 First motor test Quote Link to comment Share on other sites More sharing options...
Toni Reynaud Posted January 18, 2018 Share Posted January 18, 2018 Lovely to see. I made one from foam years ago with 4 x speed 400 motors. It flew like a dream and lasted five years before I flew it into a tree on a low pass. A very well mannered plane, and this one looks really nice. Quote Link to comment Share on other sites More sharing options...
Speedster Posted January 19, 2018 Author Share Posted January 19, 2018 Done Hope for maiden flight in the weekend S Quote Link to comment Share on other sites More sharing options...
Speedster Posted January 20, 2018 Author Share Posted January 20, 2018 Taxi test and Maiden flight. Not made for indoor, but what the heck Easy to get in the air and fly, but hard to land Due to my birthday tomorrow the Weather should be nice for some outdoor flying Cheers Soren Quote Link to comment Share on other sites More sharing options...
Chris Walby Posted January 20, 2018 Share Posted January 20, 2018 Well done and top marks for flying inside, way braver than me so total respect! Plus great looking model. Quote Link to comment Share on other sites More sharing options...
Geoff S Posted January 20, 2018 Share Posted January 20, 2018 You're a braver man than I am that's for sure. I particularly liked the wing tip touch and go Well done and I hope you have a good second maiden when you can actual turn in both directions! Our club indoor venue is about the area of one badminton court but without enough room behind the base line nor enough height actually to play the game. It a small village hall but very cheap to rent for the evening. I wish we had a venue as big as yours. Geoff Quote Link to comment Share on other sites More sharing options...
Speedster Posted January 21, 2018 Author Share Posted January 21, 2018 Great weather for outdoor flying, and the Herc was just really nice and fun to fly. Handles great, only thing is the narrow main landing gear, you really need to keep the wing level with the ailerons under takeoff, almost like flying a glider under a towing takeoff. Cheers Soren Quote Link to comment Share on other sites More sharing options...
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