Roy Mundy Posted May 13, 2014 Author Share Posted May 13, 2014 Thanks Colin, I'm still waiting for my ESC from Hobby King that's been on back order, once that arrives I can get all my electrics fitted. regards Roy Quote Link to comment Share on other sites More sharing options...
Colin Leighfield Posted May 13, 2014 Share Posted May 13, 2014 Patience is a virtue(!) Quote Link to comment Share on other sites More sharing options...
Roy Mundy Posted June 29, 2014 Author Share Posted June 29, 2014 Hi Guys and Girls, sorry for the lack of updates I have been waiting for an ESC to come from HK which for some reason was on back order for ages. So I have been busy working and in my spare time getting some much needed stick time in. So unfortunately my build has come to a halt yet again .............I did say at the beginning that this was going to be a slow build lol. anyway my ESC arrived on Thursday and today I have got on with the build again. The motor is pulling 380 Watts so I should have plenty of power. I am hoping to maiden her in the next week or so. I have now done the linkage for the elevator and the aileron servos are fitted . thank you for your patience Roy M Edited By Roy Mundy on 29/06/2014 22:59:35 Quote Link to comment Share on other sites More sharing options...
Roy Mundy Posted June 29, 2014 Author Share Posted June 29, 2014 Quote Link to comment Share on other sites More sharing options...
Roy Mundy Posted June 29, 2014 Author Share Posted June 29, 2014 Quote Link to comment Share on other sites More sharing options...
Roy Mundy Posted July 1, 2014 Author Share Posted July 1, 2014 We'll tonight I managed to get the Hawk 75 ready to maiden. The AUW is 2 1/4 lb with battery fitted, I have a 7" prop but I will try a 9" prop. she feels nice and strong you wouldn't think it was made from depron, I have really enjoyed the build but business and family have slowed my progress. Thank you to everyone for your input especially Daz, Roy & Monz. i have got a very busy week from Thursday with my childrens School fete and then we have sports days and swimming galas etc, So I am hoping to maiden it next Sunday. I will do my best to video the maiden for you all to see. kind regards Roy M Quote Link to comment Share on other sites More sharing options...
Roy Mundy Posted July 1, 2014 Author Share Posted July 1, 2014 Quote Link to comment Share on other sites More sharing options...
Roy Mundy Posted July 1, 2014 Author Share Posted July 1, 2014 Quote Link to comment Share on other sites More sharing options...
Nev Posted July 1, 2014 Share Posted July 1, 2014 That looks great, nice one. I think 380 W will be power aplenty. Should fly well, enjoy the maiden. Nev. Edited By Nev on 01/07/2014 23:13:57 Quote Link to comment Share on other sites More sharing options...
Electriflier Posted July 2, 2014 Share Posted July 2, 2014 Yes Roy, I'm with Nev. Very nice work mate. All the best for the maiden. Roy Quote Link to comment Share on other sites More sharing options...
Roy Mundy Posted July 6, 2014 Author Share Posted July 6, 2014 Thanks Nev and Roy, I am hoping to maiden it next Sunday morning weather permitting. I will keep you all posted on the progress and hopefully get some footage of the flight. Thanks once again Roy M Quote Link to comment Share on other sites More sharing options...
Colin Leighfield Posted July 6, 2014 Share Posted July 6, 2014 Good luck Roy. Quote Link to comment Share on other sites More sharing options...
Roy Mundy Posted July 6, 2014 Author Share Posted July 6, 2014 Thanks Colin, I am looking forward to it. I've had a busy week with school fetes and sports days etc. Thanks for all your positive input regards Roy M Quote Link to comment Share on other sites More sharing options...
Tony Bennett Posted July 6, 2014 Share Posted July 6, 2014 bet it flies well sir, it looks like it should. Quote Link to comment Share on other sites More sharing options...
Roy Mundy Posted July 6, 2014 Author Share Posted July 6, 2014 Thanks Tony ...........let's hope so Quote Link to comment Share on other sites More sharing options...
Roy Mundy Posted July 27, 2014 Author Share Posted July 27, 2014 Well Today the weather was a bit blustery but we decided to go for a maiden flight. I had to change the prop to a 9 x 6 and also the C G was out a bit so it was weighted a little at the front. a good friend at my club had his new toy armed with a camera on a gimble and he was kind enough to get some footage for me. i am a bit of a coward when it comes to a maiden flight, so I let our club expert have a go and trim it out for me ............I know that one day I will have to bring myself to do it on my own. anyway the maiden didn't go quiet to plan as the motor burnt out, it had a poor 2 handed launch which was recovered, she then pulled up and flew nice for a few seconds before the ESC burnt out. The motor stopped and she glided down safely. When we tried to power up smoke came belching out the motor which wouldn't spin, the ESC was burning hot. so it looks like. A new motor and ESC is needed before maiden number 2 ..........can anyone recommend a suitable cobo to run a 3 cell 2200 Mah, a link would be much appreciated. heres the link. http://youtu.be/sZkP0QmgBBo kind Regards Roy M Quote Link to comment Share on other sites More sharing options...
Roy Mundy Posted July 27, 2014 Author Share Posted July 27, 2014 **LINK** heres the link Quote Link to comment Share on other sites More sharing options...
Depron Daz Posted July 28, 2014 Share Posted July 28, 2014 Roy sorry to see and hear of this. Without backtracking through this thread, what motor and ESC do you have now? Emax (E-Power) motors are good, I've never had an issue with them and I use about 10 in my various planes. all different sizes. I regularly use this one **LINK**- for most of my small stuff, coupled to a 40amp ESC and a UBEC for safety. Daz Quote Link to comment Share on other sites More sharing options...
Electriflier Posted July 28, 2014 Share Posted July 28, 2014 Hey Roy, whether or not the motor gave up the ghost, she flew!..... Well done mate! May I ask, did you check the output/draw on a wattmeter or did you just 'wing' it?. It sounds very much as though she was over-prop'ed and the ESC couldn't cope before the magic smoke appeared. What is the AUW of the model? The reason I ask is that the motors that I'm currently using on the Herc' are rated as having an output of 340W with a 30A ESC which I can confirm is bang on. So, applying the rule of 100W per lb weight of model, if she weighs 3.5lb or less(which I'm sure she does) , the motor would fit the bill perfectly. On 8 or 9" prop too. Just a thought regards Roy Quote Link to comment Share on other sites More sharing options...
Roy Mundy Posted July 28, 2014 Author Share Posted July 28, 2014 Hi Daz and Roy, I think you are bang on with your prognosis Roy, the model was 2 1/4lb (+ a little more weight added on the day) and I tested it with a watt meter with the 7" prop fitted, it seemed to have plenty of power around 380watts. The 9"x 6 prop seemed much bigger and a different style to the 7". I then didn't bother to put her back on the watt meter, which was a big mistake. I'm sure it was over propped and that's what burnt the motor out. The motor I used was from Giant shark but had nothing written on it and it seems kind of small for the prop which is fitted onto it. I'm fairly new to electric flight so it's a lesson learnt. i will buy a decent sized motor and ESC and she will be ready to take to the skies for real this time, My friend at the club said that for the time it was in the air it seemed to fly right, apart from the dodgy launch. ill take a look at the motor you suggest Daz and try again. Thank you for your help it's much appreciated. kind Regards Roy M Quote Link to comment Share on other sites More sharing options...
Roy Mundy Posted July 29, 2014 Author Share Posted July 29, 2014 Thanks Daz, I've just ordered the motor and ESC that you suggested. i will keep you all posted on my progress. Thanks once again. Quote Link to comment Share on other sites More sharing options...
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