Greetings all from S.W.France. Need some advice please .

Flew my Banshee yesterday. It's got a Byron Barker modified Tower 40 installed , a really lovely engine modified by a real ' gent '. It was swinging an MAS 10X6 on 62 foot lines.

I took along my stopwatch and gave my wife the task of recording my lap times.

I launched in a four -stroke at 9,500 and recorded a lap time of 5.6 seconds. This was a tad too slow for me as I'm a pretty ancient 're-tread' as you call them in the U.S and prefer someting a touch quicker especially when it's windy.My piloting skills are pretty abysmal sadly !

My question is : With the above information , what RPM  do you think I should launch at please ?

I've tried other props' by the way and my Tower 40 seems to prefer this set up.

My apologies if this seems a really daft question but coming back to C/L after a long lay off [ working ! ] means a lot of catching up.

Much obliged as ever  for any contributions ,

Robin [ ex-pat Brit in the Charente full of ex-pat Brits ]

I agree with Jim. If the lines are really 62 foot lines--eyelet to eyelet, going to 58 foot lines would be perfect for a Banshee I would think. That would get you to ~5.2 sec or so--maybe still a little slow, but if your engine is doing the 4-2-4 dance, maybe that is ok.