2010 Stock Outboard Class: Mini Formula 1

[SEASTALKER]

I don't know if this is the same Bobcat as the Carlson Boat? I have attached a photo of the name plate and this shows the company based in Huntington Beach CA.

A question for Bob.

In GT-Pro you have no resttriction on the props. What props are competitors using to achieve 46/47mph?

Thanks for the info.

Peter

[Ron Hill]

Lamps "R" Us was in front of Unit I. Toys "R" Us made Lamps "R" Us change their name. It was changed to Lamps Plus.

That is the original location on Edinger in Huntington Beach.

[Chairman]

Peter,

Ron was kind enough to send us some props last spring. I ran one of them all summer. The one in the lower right is only 9" diameter (actually 8.875", I think) and was too small. The others are 10" or so diameter and 16" and 18" pitch. I ran an 18-pitch on my v-bottom and got about 6800 rpm.

(Note to Ron: I'll send the small one back to you one of these days so you can find it a good home.)



Also have had good performace with steel OMC props. Below is a 10x15 with a pretty aggressive cup. The 10x17 (no longer being made) with a normal cup performs about the same.

I'm hoping Ron will come up with a cleaver, about 10.5x17. I've also looked at those PowerTech props, but would like to see a bit more pitch.

[Ron Hill]

Working on several props, just BEHIND!

[marinetech51@earthlink.net]

Always thought the Bobcat and Tomcat were Mirage boats.

[Ron Hill]

Brad Callins the son of Louis Collins built the Mirage Boats. The Tom Cat, I think, was a Mirage Sport C. These boats were built in Texas. Miss BK her is Brad's wife.

The Bob Cat was the name of Ronnie Rima's D Runabout back in 1962. But Bob Carlson built the Bob Cats right here in SoCal.

[SEASTALKER]

I am a bit confused by the posts. Was the Bobcat, as my boat, built by Carlson and was it their shop at Huntington Beach. Has anybody got some photos going back to the days when whoever built the boats there.

On props, the best results we have so far is with the PowerTech SRA3R16 at 10"x16". Although they list only up to 15" pitch they do offer 16" pitch with this prop. The prop has a 20 degrees aft rake.

For me they produced one with standard cup and one with a more agressive cup.

The results as my earlier post show the speed was almost identical with both props, just the revs went down with the more aggressive cup. Anyhow we are getting about 10/11% slip and I doubt we are going to better that.

When we change to 50:1 oil mix we will get more revs and more speed, hopefully!

Peter