cymaz Posted July 25, 2016 Share Posted July 25, 2016 So, following on from my Wot4 XL servo placement question, I thought that I had do a proper build thread. Anyone interested??????? All the bits have been ordered...just waiting for them all to arrive. Just had a quick email from Kings Lynn Models telling me they are having stock at the end of the week. So far, I've been hunting through all my bits and pieces to find bolts, clevises, and salvaging all the pushrods and anything else of use from the death of the Giles. I did manage to find a very useful engine mount. I can't think where I got it from but there are theaded fixing holes in the beams that are a perfect match for the Evo 20gx2. The picture shows my old non pumped 20gx Pitts muffler that survived the crash. Edited By cymaz on 25/07/2016 18:51:19 Quote Link to comment Share on other sites More sharing options...
cymaz Posted July 29, 2016 Author Share Posted July 29, 2016 The plane and eninge arrived today. A quick glance over the Wot and all looks OK. The aileron push rods seem a good size, not measured them yet but they look about 3mm...could be US thread though. Covering was excellent. Tail wheel and engine mount will be consigned to the back of the parts box. I will get a 2 3/4" spinner. I can now sort out what batteries to have. The Evo 20gx2 is a jewel of and engine. I have offered up the old engine and Pitts muffler too the fire wall and looks a good fit. Quote Link to comment Share on other sites More sharing options...
Rich too Posted July 29, 2016 Share Posted July 29, 2016 subscribed Quote Link to comment Share on other sites More sharing options...
BackinBlack Posted July 29, 2016 Share Posted July 29, 2016 Posted by Rich2 on 29/07/2016 18:49:30: subscribed Me too Quote Link to comment Share on other sites More sharing options...
iqon Posted July 29, 2016 Share Posted July 29, 2016 Watching with interest. !!! Quote Link to comment Share on other sites More sharing options...
cymaz Posted July 31, 2016 Author Share Posted July 31, 2016 Right, The boxes arrived Friday, so once again Kings Lynn Models are true to their word and so is the courier. Flying all day Saturday so it wasn't until Sunday that i could check everything out. The engine is a jewel....perfect. The Wot has a few issues. The covering is good, no winkles. There are a few loose edges around the bulkhead where they have been really mean with the width of the seams. Packaging was excellent. However the hardware is woeful. Well its not hardware, it just stops the cowl from moving around. Let me show you... I gave the elevator push rod a tug to see if it was glued. It wasn't. There was one single drop on the dowel. The heat shrink tubing was keeping them in. The pushrods need replacing with m3, reglued and recovered. Or simply have rear mounted servos. The pushrod horns have too much flex. Throw away and get decent ones. I will use my old Giles horns. Don't forget to mark the ailerons and servo hatch on the wing. There is a ply plate doubler on the aileron for the horn to sit on. There is a decent incidence peg at the TE. The wing join slot is a fraction bigger that the wooden plate that slides into it. The plate is very strong made of decent wood. Its a little on the short side but this means plenty of epoxy will be able to get all around and really wet the joint out. The bulk head ( pictured on its side) is not fuel proofed. It is 100mm wide and 110mm high. My engine mounts are 70mmx63mm. There is plenty of room on the firewall. There is so large triangle bracing inside the tank bay. We will see if the captive nuts foul this. Anyhow the inside of the bulk head and the outer face will get a good soak of epoxy. Throttle cable looks OK, Z bend one end and plenty of length. Spinner,wheels and axles, tailwheel and closed loop wire will all be thrown away. I have yet to look at the closed loop fittings. So far 6/10....generous Quote Link to comment Share on other sites More sharing options...
cymaz Posted July 31, 2016 Author Share Posted July 31, 2016 Just had a look at mounting the engine. The firewall lines intersect over the hole. I assume that is where Foss wants the centre of the cranksahft. So haw do I overcome that???? Me has brain wave. I have some coffee stir sticks that came from McD's. I glued these onto the centre lines of the engine bearers and engine crankcase with a bad of CA. Cut them to length Line them up the the firewall marks lightly tapped a wood bit through the mounting holes to mark the bolt positions Put some tape over the firewall hole That will do ! Cut them to length so the ends just touch the firewall Have I missed anything ???????? Edited By cymaz on 31/07/2016 13:01:31 Quote Link to comment Share on other sites More sharing options...
trebor Posted July 31, 2016 Share Posted July 31, 2016 How does the prop shaft position look with the cowl centre hole ? By the way I hate the black paint don't know why they bother putting it on. Quote Link to comment Share on other sites More sharing options...
cymaz Posted July 31, 2016 Author Share Posted July 31, 2016 TBH...I won't be putting the cowl on. But for the purposes of photos will place it over. Quote Link to comment Share on other sites More sharing options...
trebor Posted July 31, 2016 Share Posted July 31, 2016 I've got 3 planes without cowls, my excuse is I'm leaving them off due to tuning Quote Link to comment Share on other sites More sharing options...
cymaz Posted July 31, 2016 Author Share Posted July 31, 2016 Ahahahaha Just measured the cowl. It is 150mm deep from edge to edge. The thrust washer is 138 mm from the firewall. So you could have 13/14 mm over the nose. BTW the cowl won't go on, the cylinder gets in the way . So no photos Edited By cymaz on 31/07/2016 14:18:12 Quote Link to comment Share on other sites More sharing options...
Shaun Robinson 1 Posted July 31, 2016 Share Posted July 31, 2016 I'm interested 👍 Quote Link to comment Share on other sites More sharing options...
Kim Taylor Posted July 31, 2016 Share Posted July 31, 2016 Hi Cymaz, I'm just finishing off one of these, electric powered. My elevator pushrod had cotton or similar whipping around the end, reinforcing the wood to metal joint which yours seems to be missing. I was tempted to replace it with a carbon tube and may still do so if I'm unhappy with it in practice. Mine had no ply reinforcing of the ailerons, but it would have been an improvement as they've crushed a bit. Do you think any two of these kits is the same? I wonder, having looked at various build threads. Anyway, I'll be following with interest. Kim Edited By Kim Taylor on 31/07/2016 22:49:40 Quote Link to comment Share on other sites More sharing options...
cymaz Posted August 1, 2016 Author Share Posted August 1, 2016 The same faults keep coming up! Trouble is, once you have put a bit of effort in to the build, they fly so damn well in all weathers. After work, I will have a closer look at putting some rear servos in for the elevator and look at reinforcing the undercarriage plate area. I will probably have to drill a hole through the engine mount for the throttle cable. I did recover a new standard size Wot4 a few years back. Just as well I did. There were places that had been sanded down to almost nothing. They needed beefing up. The hardwood mounting point in the tail was far too small for the hole it was supposed to sit into. Quote Link to comment Share on other sites More sharing options...
cymaz Posted August 1, 2016 Author Share Posted August 1, 2016 Did a bit more tonight after work. Had a long hard think about the rear servo situation. I cut out the covering from the rear most two tail openings to see what was what. No problem as I have some gloss black covering. I quickly realised that two servo simply wouldn't go in side by side. If I put another servo further back there would be too much play on a long push rod. So its one servo and a tail joiner ( from a smaller Wot). The servo plate is 3mm ply faced with balsa to bring it up level with the fuselage sides. Edited By cymaz on 01/08/2016 19:34:40 Quote Link to comment Share on other sites More sharing options...
cymaz Posted August 1, 2016 Author Share Posted August 1, 2016 Before I glue the servo plate in I will face the horizontal stab slot top and bottom with some hard balsa. This will bridge the gap of the tail fin and give far more glue area. The tail will be braced top and bottom with carbon rod. Quote Link to comment Share on other sites More sharing options...
cymaz Posted August 2, 2016 Author Share Posted August 2, 2016 Installed the port servo. I ran some extra thread into the wing just in case I need to run an extra wire in the future, for some bizarre reason. Also glued up the elevator joiner. Also installed the elevator servo. So far so good. Quote Link to comment Share on other sites More sharing options...
Kim Taylor Posted August 2, 2016 Share Posted August 2, 2016 Hi Cymaz Just for my own interest, did you open up the slot for the tailplane to the rear of the fuselage, or did it come like that? Mine had a letter box style slot, i.e. closed fore and aft, not like yours (and the destruction booklet), which made it a pain to get the glue into the joint between the fuselage and tailplane without getting it all over the covering (and my fingers, ....................and trousers...........................and hair). I've been doing mine for 2 - 3 months now and I reckon you'll be ready to fly before me. My excuse is my daughter having a baby - only been able to get to the flying field once since, the wife and I are spending so much time at daughters house. Kim Quote Link to comment Share on other sites More sharing options...
cymaz Posted August 2, 2016 Author Share Posted August 2, 2016 I took a saw to mine. It is a method of tail insertion used by Seagull on a few of their planes. It is a neater way of getting the epoxy into the fin join where it counts. Im happy the way the rear servo has gone in. Hopefully Tomorrow BTW , took a soldering iron to open up the holes in the film...never use a knife Edited By cymaz on 02/08/2016 22:57:38 Quote Link to comment Share on other sites More sharing options...
cymaz Posted August 3, 2016 Author Share Posted August 3, 2016 Tail servo. Really quite pleased with the result. Very positive movement and no slack Wing Servo. Likewise, good fit The push rods are roughed in at the moment. It will be all taken apart and CA fed into the holes to stiffen the balsa, bolts cut and trimmed then CA glue used as thread lock. Quote Link to comment Share on other sites More sharing options...
cymaz Posted August 3, 2016 Author Share Posted August 3, 2016 The elevator push rod is now on the upper surface. A quick 5 min job just a case of turning the horn and the pivot around. This gives room for the rudder set up underneath. Edited By cymaz on 03/08/2016 21:44:28 Quote Link to comment Share on other sites More sharing options...
cymaz Posted August 4, 2016 Author Share Posted August 4, 2016 I will soldier on... Roughed in the rudder closed loop tonight. The threaded horn on the rudder is about the same width as a large Hitec two arm horn, ( within a mm). With the elevator hon on the upper surface there is no binding or hitting of surface horns of any kind. RESULT !! Edited By cymaz on 04/08/2016 21:38:54 Edited By cymaz on 04/08/2016 21:49:22 Quote Link to comment Share on other sites More sharing options...
cymaz Posted August 8, 2016 Author Share Posted August 8, 2016 Worked on the wing joining tonight. A couple of issues both root wing ribs not entirely flat slight twist in each aileron leading edge tongue does not mate properly Before sanding the high spots at the root Sanded the root ribs to true up the mating surfaces. Picture shows the area between the black tape where I had sand Quote Link to comment Share on other sites More sharing options...
Rich too Posted August 9, 2016 Share Posted August 9, 2016 good progress, and I cannot believe how bad some of the work is on these - I am going to try and build my WWXL stock and as per the instructions, including sticking to the supplied elevator rod Quote Link to comment Share on other sites More sharing options...
cymaz Posted August 9, 2016 Author Share Posted August 9, 2016 Cheers Rich2. I have left the wing overnight....it's still glued together ! I will fill in the gap on the LE tongue with some thin ply and epoxy. Next few job is to make a shelf for the tank, add some bracing to the undercarriage area, mount the engine switches etc. All artf planes I've built have had a bit more "meat" added to the undercarriage plate, they need it Quote Link to comment Share on other sites More sharing options...
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