veco .19 prop

[bob werle]

I have a [lank wing profile that was scaled up from a 1/2 a stunt trainer.  It is 39" span and abour 235 squares.  Weight unknown.  I have a Veco .19  not BB.  What would be a good starting point for prop sizes.  I am still using up my stock of old top flite wood props in different sizws..

[Jim Thomerson]

A 10 x 4 if you have clearance.  I am flying a similar trainer on a clapped out McCoy 19 with a 9 x 4 set very rich.  No doubt youu have more power in the Veco.