mintie

a question to you all....I have a 1/6 scale scratch built super cub powered by an os 46 and nearly finished a set of scratch built floats . The plane is 6.5lb and the floats are 34 in long and 14oz at this stage. The question is..... one water rudder or two? Dont take any notice of how the plane is sitting,only a photo mock up. cheers

siddus74

Nice cub, I have flown a 'Flair' cub which was slightly heavier with a 72" span off water with floats and I used only one water rudder, it was one from the ARC Cardinal 177Galleani float set just modified to fit - worked like a treat!. I really don’t feel that providing the water rudder is of a practical size that two are required, but I guess two do look good and it gives redundancy if one fails . . .

Please tell me that you are not leaving the float / wing incidence like that!

evan-RCU

One water rudder is fine. I do suggest a sub fin like real cubs have when on floats.

Wayne22

My Feedback: (2)

you get more control on the water...tighter turns when taxing , etc with two, however, a single will work....

JimCasey

My Feedback: (1)

One works fine.
Water rudders are like watches. With one, you know. With two, you're never sure which one is right, and they are never exactly the same.

mintie

Thanks to all who chipped in ....will go with one rudder and see how it goes.
Suddus74....thanks for you concern about the float/plane incidence, BUT if you read all my posting you will see,I wrote "dont take any notice how the plane is sitting,only a photo mock up" .....All the incidences are yet to be done. Thanks all the same. cheers.