Model Forum / Radio Controlled / Water Models / January 2008

The only way to work out which is best for your motor/hull/prop setup s
to try different hieghts.

The basic principle is this:
   
- The higher you lift the strut the more to prop will be out of the
 water and therefore unload easier.  Lift it higher if you think your
 engine isn't getting enough RPM.
 
- Alternatively, if your engine is getting heaps of RPM try lowering
 the strut to put more prop in the water which will increase your top
 end speed.
 

It's all about balance getting the best RPM and speed without going too
extreme in either direction.

Do you have any photos?  Might be worthwhile trying some different
props as well Propshop 7016 2 or 3 blade , x470 or 6717/3.  I run a
6516/3 400 on my Insane cat but I tried o modified 6717/3 the other
week which was great.