When I made the Sunderland, all those years ago, I didn't think about the props it would need, but luckily I found some about the right size, 2-bladers only, and motors from a foam type park-flyer.
Well, with the advent of all those drones appearing there is now a huge range of multiblade props to get. I have seen 5 inch six bladed ones (perfect for the Ecranoplan, 5 inch 5-blade, some nice 4 inch 4 bladers, and three blade ones of similar size! The latter perfect for the Sunderland.
Unfortunately these props use an adaptor to fasten to the motor shaft, unlike the props on the Sunderland which simply are a push-on fit. This means the prop sticks forward quite a bit and look funny (on the Sunderland ). It would need a bit of shaft shortening first or motor repositioning…a bit tricky.
Graupner speed 320 motors would appear to be a good upgrade for shorty, using the new props and I see a spending spree looming on motors, props and adaptors.
The Foam Flier has to go I have decided. £30, motor and servo included, but not ESC or receiver. Collection only really, (as a box to post it in would be massive, it does not weigh much but it would require a mountain of bubble wrap and cost as much to post as the thing itself ) I only made it just to see how easy it would be using Styrofoam, and it performs much as the first one I made and I should be using that really, eh? I will make a new post separately after Christmas. Pics see album. It does not have such a good finish as the A90, but its ok for what it is, and dinks can be filled and repainted very easily.
Ashley

Ashley
Edited By ashley needham on 21/12/2016 17:14:43