Large Model Association Forum

Does anyone know where I can find some large diameter prop blades ? The overall (scale) diameter is some 39". I need one tractor and one pusher blade set for the contra-rotating set-up (3 blades to each hub). Ideally, I would like ready-balanced 'carbon' blades but a good quality wood set would also do - at least for thrust testing...

I intend to make up my own variable-pitch hubs and will fit the pitch change spur gears to the prop blades once they have been sourced.

Thanks for any help.
Dave C

have you tried Solo Props, the largest they do is 32", but they may make to order.
http://www.soloprops.com/catalog/catalog_solo_props.php

Thanks Paul, I have spoken to Solo in the past and they seemed reluctant to move away from their standard offerings. They do make nice 'ground-adjustable' hubs though which is tempting !

I think I may well have to lay-up some blades to a standard design unless something else turns up. I'm a bit worried about stressing these though as there are high rotational masses /forces involved...

Dave C

This guy might me able to help you.
http://www.sl-propeller.de/modellbau-pr ... -solo-hub/

Thanks Tinus. They look like they have the right sort of products / engineering expertise I'm looking for.

I've sent them an email enquiry to see if they can help...
Dave