John Privett Posted December 5, 2014 Share Posted December 5, 2014 Great result Simon, well done! And I'm still amazed that with such small wings this (model or full-size!) flys at all. Quote Link to comment Share on other sites More sharing options...
Rob Lewis Posted December 5, 2014 Share Posted December 5, 2014 Absolutly fantastic Simon, When its in the air you can't tell it from the real thing. So pleased for you that it all worked out. Quote Link to comment Share on other sites More sharing options...
John Privett Posted December 17, 2014 Share Posted December 17, 2014 Fingers crossed it doesn't try and emulate this (full-size) one... I wonder if Rob can tell us anything about that one? Quote Link to comment Share on other sites More sharing options...
Rob Lewis Posted December 17, 2014 Share Posted December 17, 2014 Must admit i don't know too much about this yet, wasn't at work last night or today. From what i have read, it seems passengers were saying there were popping sounds and sparks and flames coming from the back of the engine. I'm assuming it was surging, a compressor fault or such. All in all sounds like it was well handled by the crew. Once the fire is out, it is a non event. The Dash flies perfectly well on one engine. Quote Link to comment Share on other sites More sharing options...
Simon Chaddock Posted December 18, 2014 Author Share Posted December 18, 2014 Thanks everyone for the kind words. I must say it came as a surprise to me just how well it flies. It always had the power but so far it has shown to be remarkably easy to control. I did think about putting the motors on separate channels so it could 'fly on one' but decided against it. At the moment it has been laid up (actually hanging on the wall) for the winter. Quote Link to comment Share on other sites More sharing options...
DEMON-DRIVER Posted March 9, 2015 Share Posted March 9, 2015 She flies Like a Dream Simon! Quote Link to comment Share on other sites More sharing options...
Simon Chaddock Posted April 25, 2015 Author Share Posted April 25, 2015 Looking at it on the wall all through the winter I eventually decided to increase both the span and chord of those tiny scale ailerons by about 20%.to improve the roll control. After all as a park flyer I am flying in a space that would be like keeping the full size within the airfield boundary! One advantage of tape top hinges is that they are easy to remove - you just peel the tape off! Being all Depron it is a relatively easy job to simply cut back to the size of the bigger aileron. A bit of Depron 'in fill' pieces are required between the the ribs and a new aileron made. It can then be simply taped back in place. A new horn and servo link are required but then it is ready to go. Still pretty docile in roll but it does have enough authority to give some confidence. Any aerobatics will have to wait! Quote Link to comment Share on other sites More sharing options...
Colin Leighfield Posted April 25, 2015 Share Posted April 25, 2015 Can't fault that Simon. It looks great. Quote Link to comment Share on other sites More sharing options...
Simon Chaddock Posted November 4, 2015 Author Share Posted November 4, 2015 My Q400 has had an interesting summer. At the Ashbourne scale day it suffered from what I believe is the limitation of DSM2 in a busy 2.4 environment - you loose control! This is the third time this has happened on 3 different planes on 3 different occasions but they all perform flawlessly at my own 'RC quiet' field. The resulting entirely fortuitous 'fail safe' landing on a rubble strewn disused runway punctured the fuselage in many places and cracked the wing spar at the root. One advantage of a Depron stressed skin structure is it simple to just square up the hole and glue in a new piece of skin. The wing spar needed more thought. The wing was completely detached so was glued back with foam safe CA. This would provide all the necessary torsional strength but clearly not adequate for the thin balsa spar flanges that are actually flush with the wing surface. A local light sand in the area of the break and the spar was then patched with glass tow and ployester resin. Care needed as Polyester resin attacks Depron but when sanded and filled it is virtually invisible. And the story does not end quite there. Yesterday's maiden after the repairs had no problems except for the landing. Despite being fairly gentle the port nacelle broke in two! Examination suggested a glue joint had separated just ahead of the wing. Was this hidden damage as a result of the previous much harder crash? Those motors are cantilevered out along way in front of the wing. Easily fixed so another test flight this morning to convince myself the wing spare repair has adequate strength. enough. Good enough! Edited By Simon Chaddock on 04/11/2015 15:26:16 Quote Link to comment Share on other sites More sharing options...
ron evans Posted November 4, 2015 Share Posted November 4, 2015 Hi Simon It's a tight loop too, did I hear the depron creaking over the sound of the motors. The model looks so realistic in flight, quite an achievement to get it to fly that slowly on those skinny wings. Are you still using DSM2 ? Ron Edited By ron evans on 04/11/2015 20:01:50 Quote Link to comment Share on other sites More sharing options...
Stephen Jones Posted November 4, 2015 Share Posted November 4, 2015 Nice too see it back in the Air Simon . Their has been a fair few problems at are field with DSM2 , some think that the Radio Controlled golf carts are the cause . as the problem only seems to be on take off or landing when flying over the near by golf course. And some have now changed their radio sets, due to so many downed models. Steve Quote Link to comment Share on other sites More sharing options...
Colin Leighfield Posted November 4, 2015 Share Posted November 4, 2015 Good one Simon. Quote Link to comment Share on other sites More sharing options...
Simon Chaddock Posted November 5, 2015 Author Share Posted November 5, 2015 Ron Yes the Q400 still uses DSM2 (as do about half my planes) and I have no problem with it as I am a lone flyer most of the time. The loop pull out was actually unnecessarily tight but I wanted to be absolutely sure it would pull out as it was rather low for the benefit of the camera. In fact it virtually stalled! Now I have a better idea of its performance I should be able to get it do a better shape loop (and lower!) I shall have to invest in some DSMX receivers. Quote Link to comment Share on other sites More sharing options...
ron evans Posted November 5, 2015 Share Posted November 5, 2015 Simon I have 10 DSM2 in use without any problems, although there are rarely more than six models up at a time at our club. Any new kit bought will be DSMX though. Ron Quote Link to comment Share on other sites More sharing options...
Franz Stockinger Posted July 25, 2017 Share Posted July 25, 2017 Hi Simon, Have been looking a long time on this project. Some years ago my wife and me were flying from Exeter to Salzburg in that fly be 400 arriving very late for Christmas eve, after having changed the plane 2 times. So we tried out 3 different Dash 8. Only minor technical problems? Anyway! Living near Salzburg, these planes fly over my house at least 3 times a day. Mainly Air Berlin. So I decided now it is time to build one. It is definitely a must have. Regards, Franz Burghausen, Bavaria Quote Link to comment Share on other sites More sharing options...
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