Originally Posted by ITLLFLI

8 inches

Originally Posted by k4armstrong

I'm running a Scarab P29 with 550HP per motor and rebuilt BlackHawks with 1:50 gears, Rebuilt with XR parts and the stock 31p props with some mild modifications, I do keep a spare on hand as well. They will stay together if driven with care, back off the throttle when out of the water and they aren't for hammering out of the hole. It's not so much that they were blowing apart that Merc stopped manufacturing but there were wasn't a big enough market for them in the twin setup and boats built with a natural bow lift were suited for the Black Hawk, other manufactures weren't going to change to accommodate. It s a very efficient setup. They are a great drive and wanted in the shorter boat single setup design and there is where the market is/would be. Parts are easily available and it is the knowledge to rebuild the drive properly where there is a shortage (just don't hell the casing). Tim Bostic with Hoss Props has explored the thoughts of bringing back as well and he could make props for them since his dad worked with Merc back in the day in the development of them. Gary Musenburg was a lead developer in the BlackHawk back in the day and has lot of information about the drive, he's around some where.

Originally Posted by Gh700xx

That's the 25 talon I was talking about and yes Gary was the lead guy I think from what I remember. We didn't see them much as we were doing mostly endurance testing and they were doing more as far as performance and seemed to always be switching drives around and props. He's a very cool guy and very easy to talk to. That talon was a hoot and probably the fastest single engine boat I've ever driven.