Dwain Dibley. Posted March 3, 2017 Author Share Posted March 3, 2017 Mr Fly-Navy.. Quote Link to comment Share on other sites More sharing options...
Former Member Posted March 3, 2017 Share Posted March 3, 2017 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Dwain Dibley. Posted March 3, 2017 Author Share Posted March 3, 2017 Hi Tom, I got that weight out of the engineering shop at the college where I work before it was ripped out and replaced by hair and beauty. There were loads more that went in the skip, can you believe it....a crying shame mate. D.D. Quote Link to comment Share on other sites More sharing options...
Denis Watkins Posted March 3, 2017 Share Posted March 3, 2017 Same at my local college Dwain, I used to go in there, they had every conceivable machine, with a 6 foot bed vacuum former, and an 8 foot press for making such things as plywood or any chosen laminate ! My favourite " borrow " at the time, at a cost of a packet of chocolate biscuits, was time on the vertical miller All gone now, all sold off for " progress" Quote Link to comment Share on other sites More sharing options...
Geoff S Posted March 3, 2017 Share Posted March 3, 2017 Posted by fly-navy on 02/03/2017 22:10:47: Bored my way through "They flew alone" on iplayer earlier Steve, plenty of Moths on there. Have you thought of modelling your plane on Amy's as a tribute to her Good news about the sunny weather today give you a chance to dry out a bit, bad news got to chuck it down tomorrow. Coming along nicely mate. That is a surprisingly boring film. I watched it on the iPlayer a while back. It makes you appreciate how film techniques have improved since it was made. I think if I was going to model a famous Cirrus/Gypsy Moth it would Francis Chichester's. His first Gypsy Moth was the aircraft he successfully navigated across the Tasman Sea with a vital refuelling stop on Lord Howe island. Gypsy Moth IV was the yacht in which he sailed single handed non-stop rund the world in the days before GPS and he relied on 'proper' navigational skills using maths, paper charts and a sextant. Both huge achievements. Dwain: Certainly make sure you have plenty of right thrust built in. I had none in my Tiggie because there's none shown on the drawing. I found that I couldn't manage stall turns to the right because I'd already used up all the rudder movement to keep the model vertical on the climb so there was none left to turn right at the top. I've since put a bit in but not enough because the offset makes the prop shaft foul the cowl. Normally I offset the motor mount to bring the prop into the middle of the cowl. Robi Edited By Geoff Sleath on 03/03/2017 11:21:28 Quote Link to comment Share on other sites More sharing options...
fly-navy Posted March 3, 2017 Share Posted March 3, 2017 Posted by Dwain Dibley. on 03/03/2017 00:48:28: Mr Fly-Navy.. Now, can,t you just visualise that floating around the skies of Worcesershire, pity the engine will be making the sound of a strangled cat. Quote Link to comment Share on other sites More sharing options...
fly-navy Posted March 3, 2017 Share Posted March 3, 2017 Why that printed in red Lord only knows Quote Link to comment Share on other sites More sharing options...
Dwain Dibley. Posted March 3, 2017 Author Share Posted March 3, 2017 Hee Hee... You some how linked up to the picture in your quote john,,,, I added some 1/16th ply to the back of the motor mount and sanded it all square on the belt sander. I made allowance for building in side thrust, plan says 2 deg I can add 4 if I need it. A bit of furkling and its all lined up, I took some balsa out of the front formers to get the motor central and further forward so the prop can go round. D.D. Quote Link to comment Share on other sites More sharing options...
Geoff S Posted March 3, 2017 Share Posted March 3, 2017 Posted by Dwain Dibley. on 03/03/2017 21:59:53: I made allowance for building in side thrust, plan says 2 deg I can add 4 if I need it. A bit of furkling and its all lined up, I took some balsa out of the front formers to get the motor central and further forward so the prop can go round. D.D. Hopefully that side thrust will be sufficient and I've found that it's always a good idea for the prop to go round Neat motor mount. Will you arrange for it to be twisted slightly to adjust side thrust or will you do it the crude way (like me) with washers? There's plenty of space for abit of ballast, too if it's needed. I'll be very interested to see how it balances. Geoff Quote Link to comment Share on other sites More sharing options...
Dwain Dibley. Posted March 3, 2017 Author Share Posted March 3, 2017 Good Evening Geoff, I will fix the mount in at 4 deg and then take out the side thrust with washers/wedges, if needed. Mind you I could make it adjustable with some simple brackets.....good thinking Geoff.. The motor was fatter than the existing opening at the front, which was made for a four stroke's prop driver. Yes there is quite a bit of room in the front to slide in some lead....or a receiver battery.. D.D. Quote Link to comment Share on other sites More sharing options...
Former Member Posted March 4, 2017 Share Posted March 4, 2017 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Geoff S Posted March 4, 2017 Share Posted March 4, 2017 Percy: If you look at the picture of my Moth on this thread (on the previous page, I think), you'll see that I have cut a hatch in the top of the fibre glass cowl and the battery goes in there at an angle back into the fuel tank area. It takes a 4S 4AH pack but it needs to be a short one and none at HK will fit because of length. They have discontinued the short fat ones which were (are) ideal for me. I think Dwain is going for a 3S LiPo but I much prefer the 4S option with lower current (20 amps in cruise) and that's what will be the energy source for my DB Cirrus Moth when I build it in the near future. Very much agree with your suggestion for separate aileron servos rather than bell cranks. There are so many inexpensive metal geared ball bearing mini servos with more than adequate torque ratings available now it's not worth the faff of bell cranks. I'm using Airtek Kpower MO200s in mine. This build is inspirational for me and I'm sure I'll be referring to it often once I get started on my own. Geoff Quote Link to comment Share on other sites More sharing options...
Former Member Posted March 4, 2017 Share Posted March 4, 2017 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Dwain Dibley. Posted March 4, 2017 Author Share Posted March 4, 2017 Hi Percy, The lipo will be velcroed behind former 2, or in front depending on Balance, I don't seem to be able to uplad pics at the moment, but will do later. The 4 max set up is for 3s but I have 4s lipos about the place if needed. I left the bearers in purely for their weight , of course they do beef up the front also, and I have used them to build my motor mount on. You will not be disappointed with the quality of the kit, both wood and fit are excellent. D.D. Quote Link to comment Share on other sites More sharing options...
Dwain Dibley. Posted March 4, 2017 Author Share Posted March 4, 2017 OK. For some reason my last batch of pics were all about 12MB, and wouldn't upload. ??? Unfortunately I couldn't repeat some of them, but here are the ones i could. D.D. First off , I found this in my boxes of bits and thought it will be an easy to make solution for a catch. But it fouled on the lipo so a no go. The solution can be seen in the same pic....back to basics but fool proof. The catch and the hole I made for the red one, that I had to fill in with scrap. Here you can see the screws I inserted to catch the magnets in the hatch. They were C/A'd in and then filed flat with the ply. The magnets. I drilled holes slightly under size, so the magnets have to be pressed in, use any flat item, I use the end of a bigger drill bit. Before that, I put the hatch in place and mark the positions for the screws by pushing a sharpened ex allen driver through the center of the magnet holes, having found the centers from the underside first ( one of the pics that I cant replicate ) the magnets are rare earth type. The hatch in place nice and neat. The magnets would probably hold this on their own, but I added the catch to save me loosing all my hard work in a field .. The battery position, and for Geoff, there is a 4s 3000Mah battery in reserve... However , to fit this I will have turn it thru 90 deg or file some wood out of the bearers. Quote Link to comment Share on other sites More sharing options...
Dwain Dibley. Posted March 4, 2017 Author Share Posted March 4, 2017 Talking about boxes of bits, I never throw anything away, If I can help it, and to keep it in some semblance of order, I use those little food containers, you know the ones yer carry out comes in. You can get a thousand for about a quid. D.D. Quote Link to comment Share on other sites More sharing options...
Geoff S Posted March 4, 2017 Share Posted March 4, 2017 Those magnets are difficult to handle! Turn your back for a second and they've jumped to join their friends ... or any piece of steel in the near vicinity - they're quite fickle!. I use a piece of 6mm dowel to push them in; they aren't so friendly with wood Geoff Quote Link to comment Share on other sites More sharing options...
Dwain Dibley. Posted March 4, 2017 Author Share Posted March 4, 2017 LOL. I remember an early attempt with them...I used a magnet in the hatch and one in the fuz, boy did they grab, however when fitted, I had managed to get 2 out of four corners repelling each other. Doh !!!. Oh how I laughed....after the tears had dried up !! D.D. Quote Link to comment Share on other sites More sharing options...
Dwain Dibley. Posted March 4, 2017 Author Share Posted March 4, 2017 Last job for tonight..!! I made a hole for the rudder servo. And took a pic of the ply block I added to take the catch screw. D.D. Edited By Dwain Dibley. on 04/03/2017 23:53:08 Quote Link to comment Share on other sites More sharing options...
Former Member Posted March 5, 2017 Share Posted March 5, 2017 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Dwain Dibley. Posted March 5, 2017 Author Share Posted March 5, 2017 Percy, there is also the option of 2 X 2s packs sitting side by side. These projects tend to evolve as you go, as you no doubt know. Thanks for the input, it all helps Guys. D.D. Quote Link to comment Share on other sites More sharing options...
Former Member Posted March 5, 2017 Share Posted March 5, 2017 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Dwain Dibley. Posted March 5, 2017 Author Share Posted March 5, 2017 Quote Link to comment Share on other sites More sharing options...
Dwain Dibley. Posted March 5, 2017 Author Share Posted March 5, 2017 Well, i am amazed I got that vid on first time, its been ages since I played on You tube. I had to fit the U/C at the time to make the hatch, I agree it gets in the Damn way now, I already have dents... Looking forward to your solution with the wing mod Dood D.D. Quote Link to comment Share on other sites More sharing options...
Former Member Posted March 5, 2017 Share Posted March 5, 2017 [This posting has been removed] Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.