Concorde Speedbird

Plenty done on the Classic today Snakes for the tail controls inserted Note the angle of the rudder snake for the angled rudder. Top deck I then decided to sand and glue the wing together And the underside cross grain sheeting. Very strong fuselage!

All the standard ones are the same size. The MK 1 was a plan set with foam wings, and it had a different wing section to the later Wot 4s. 52" span and very rare. The MK 2 looks similar to the MK 1 and was a kit. It had the now standard Chris Foss wing section and mildly modified fuselage design. It has now become ubiquitous thanks to the ARTF Wot 4s using this design. Standard size is the same 52" wing span, but of course Ripmax have released several different sized ones. The MK 3 has a much modified fuselage with an enlarged tailplane, a rudder which is angled slightly backwards and extended below the fuselage (I believe to improve knife edge) and a more subtly curved fuselage in the undercarriage area. I've noticed my one is slightly wider than the ARTF MK 2 fuselage too. It also has a 56" tapered wing with new wingtips, but the fuselage is the same size as the other two marks. The Classic is a MK 3 fuselage with basically the same 52" parallel chord wing as the MK 2, especially on mine because I am putting MK 2 wing tips on.

Apologies I have had a busy few weeks. On the Pro I have installed the tail servo mountings: Thrilling. Slightly more interesting is the fuselage build on the Classic. This kit goes together very nicely, it is easy to build and high quality. Undercarriage mounting: Servo tray, with modification for the smaller HS225 servos which I use extensively (standard servo for the throttle unless I change my mind). Engine bulkhead- note I have trusted Mr Foss with his use of 1/8" ply for the bulkhead (I normally use 1/4" ) but I will deviate from the kit by adding triangle stock. A jig isn't necessary to build this aeroplane but I have used mine anyway to ensure a straight fuselage, and I am pleased with the result thus far. Looks like a Wot 4 and there is nothing wrong with that. I have also cut 1/2" off the trailing edge of the wing for the super wide ailerons (interestingly they will now be the same size as those on the Pro ARTF, which are also enlarged) and glued the leading and trailing edge pieces onto the wing. Pictures of that would be even more dull than the servo mounting pictures. More soon Jacob Edited By Concorde Speedbird on 03/06/2018 19:59:32

Thank you. Classic work comprised of cutting the mounting holes for the engine mount. I am using an adjustable engine mount should I want to change the engine in the future. I couldn't glue the bolts in because I didn't have any suitable washers, which I will get tomorrow. I glued the firewall in on one side instead. And with the pro, the dremel was used to let the engine sit in position: And I hinged the tail controls. I think I might put diagonal struts on the fin and tailplane to improve rigidity and strength. Jacob

In the family we have had many Wot 4s over the year, all MK 2s. One of which was an original kit one which flew for 30 years across three generations. So I quite like it. I have two Wot 4s on the go now: The ARTF Wot 4 Pro, the super-light one, but I am modifying it to fit a Saito four stroke. Should be the ultimate flying Wot 4 I have done. The Chris Foss Classic kit, a mark of Wot 4 I have never done and I have always wanted to build one after the success of the old MK 2 kit. Saito 62 for this one- small but this lightweight combination has worked brilliantly on the original Wot 4, and you can mount the 82 on the same mount. Modifications will be the wide aileron option Mr Foss offers in the instructions and MK 2 wingtips. So anyway, to business: This is the new engine bulkhead on the Pro to fit the four stroke. Servos are going in the tail because it is horrendously nose heavy due to the fuselage being incredibly light. Only a 45S on this one but it is a very very light airframe and this is a pokey engine. And over to the Classic. Almost forgotten with the ARTFs these days- this is a really nice high quality kit that should build into a very strong yet capable airframe. Steve Webb got me the decals for the scheme below: Fuselage sides, more shapely than the MK 2 that I am used to I am going to change the wing tips to MK 2 spec because the swept MK 3 style wingtips have never appealed to me. This is how the kit comes: And this is the MK 2 tip on the pro: So I chopped the end of the wings off square ready for MK 2 tips Finally, these are the 1" spacers to set the bulkhead back for the four stroke (there are several spacer options, a clever design). I hope you like wot you see... (sorry) Jacob