MARTIN Mickleburgh

Chaps, thank you all for your help. I've worked out a fix thus: 1) Install a spinner with a thick backplate 2) Use a steel hand countersink to relieve the backplate of the spinner so that it fits flush with the prop driver 3) Use a thick stainless steel washer between the prop and the nut which is of smaller diameter than the supplied washer and doesn't touch the prop blades. Never had these problems with attaching a prop via a collet driver..... Martin

Denis - thanks for that. I rather suspected that a bit of fettling was going to be the answer. Hopefully somebody in our club (Woodspring Wings) has access to a lathe.....Frustrating though, isn't it: call me old fashioned but I expect things to work! Martin

As a relative newcomer to model flying, and having cut my teeth on an E-Flite Advance 25, I decided to go for something a bit bigger and more powerful and invested in an AcroWot II and the relevant electric kit. I've gone for the motor and ESC recommended by Ripmax, a Quantum II 55 and 60A ESC. My problem is fitting the prop to the motor. This is the first time I've used a prop driver bolted to the front of the motor - previous electric models have used a collet attached to the shaft. I've hit two problems: firstly, the join between the prop shaft and the face of the driver has a distinct fillet of radius about 2mm, rather than a sharp right angle. That means that neither a prop or the backplate for a spinner will fit hard against the driver. Secondly, the boss of the prop (an APC 12 x 8 E) is shallower than the blades where they cross the edge of the washer that sits behind the nut that holds it al together, and where they cross the edge of the spinner backplate. Net result is that I can't get a tight, mechanically sound fit for the prop. Anyone have any suggestions?

Thumbs and fingers when racing an RC yacht, thumbs only when flying...no idea why. Martin

Richard,   Many thanks for that - just had a look at Andrew Jarvis' Wot4 album and you can see the (very neatly) precut servo holes.   I've set about the first wing (with much trepidation - don't mind building stuff but hacking holes in thigs doesn't feel right!) and all's going well so far. Need to acquire some hardwood for the servo bearers and finish off.   Martin

Hi, I'm building a Wot4 right now - just finished the fuselage and about to tackle the wings. I want to mount separate aileron servos. Any suggestions as how best to a) make the holes for the servos and b) drill a hole through the wing for the servo lead? All help much appreciated   Martin   BTW, re the firewall - I doubled mine up with an extra piece of 1/8 ply. One piece just didn't seem chunky enough to me - the Flair Kite I built to learn on had 1/4 ply and withstood at least two vertical nosedives into the stuffed clouds.

1. Swindon Model Centre 2. Sussex Model Centre 3. SebArt Miss Wind 50 4. Horizon Hobbies

OK, count me in - be great for when I pass my A.......;-)