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Scott 912 - 9.1" Two Stage with Trim

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Re: Scott 912 - 9.1" Two Stage with Trim

Postby wooldridge1 » Sat Dec 09, 2017 6:42 pm

Jeff, have you had the pump in white water yet?

Joe
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Re: Scott 912 - 9.1" Two Stage with Trim

Postby Scottwaterjet » Sun Dec 10, 2017 2:19 pm

callingalltheshots wrote:How many degrees of trim are in the nozzle?


Great question "Callingalltheshots".

The 912 has 12 Deg of up trim and 12 Deg of down trim using the base of the jet intake as the reference. Therefore, the zero Deg trim position is with the trim nozzle set parallel to the jet intake base.

[Note: The 912 has a 5 Deg shaft angle from the jet intake base. The above numbers account for this.]
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Re: Scott 912 - 9.1" Two Stage with Trim

Postby rockchuckar » Sun Dec 10, 2017 3:53 pm

wooldridge1 wrote:Jeff, have you had the pump in white water yet?

Joe


Yes we did and it works extremely well !
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Scott 912 - Cavitation Test Video 1

Postby Scottwaterjet » Wed Dec 13, 2017 2:37 pm

Scott 912 - Cavitation Testing Video - Hard Lock & Hammer Down - Forward and Reverse
Here is a video of some cavitation testing done on the 912. Well, actually there was NO cavitation!

https://www.youtube.com/watch?v=Pu7nrzY8Tk0
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Scott 912 - Load Test - WOT - No Cavitation

Postby Scottwaterjet » Mon Dec 18, 2017 6:25 pm

9.1" Two-stage Scott Waterjet - Load Test - Finding the Limits - No Cavitation - WOT ~4,200lb Load

Didn't manage to get it up on to the plane! Why? Trim Nozzle in the up position from some previous testing. We did manage to lift this load. Video to come.

https://www.youtube.com/watch?v=uFPHROirHzs
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Re: Scott 912 - 9.1" Two Stage with Trim

Postby Fishbucket » Mon Dec 18, 2017 9:03 pm

Regarding the first test data posted. With 8 barrels full and planing out at 28 mph...How many seconds did that take?
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Re: Scott 912 - 9.1" Two Stage with Trim

Postby Scottwaterjet » Tue Dec 19, 2017 2:00 pm

Fishbucket wrote:Regarding the first test data posted. With 8 barrels full and planing out at 28 mph...How many seconds did that take?


We didn't record the exact figure. However, we believe it was in the 4 to 6 second range.
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Re: Scott 912 - Cavitation Test Video 1

Postby mgrant » Thu Dec 21, 2017 2:12 pm

Scottwaterjet wrote:Scott 912 - Cavitation Testing Video - Hard Lock & Hammer Down - Forward and Reverse
Here is a video of some cavitation testing done on the 912. Well, actually there was NO cavitation!

https://www.youtube.com/watch?v=Pu7nrzY8Tk0


My 212 would only be pumping air at the rev limiter with that load. I can't wait for my 912 to arrive ;)
OutKast 24ft (self built). Fuel Injected 499 Max Wedge Mopar. Hamilton 212, impeller modified by Intermountain Machine & Fab (4.4t).
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Scott 912 - Load Test ~ 4,200lbs to ~ 42 mph

Postby Scottwaterjet » Fri Dec 22, 2017 3:05 pm

Successful lift of ~ 4,200lb load. Hammer down WOT ... No cavitation

Trim nozzle in correct position.

https://www.youtube.com/watch?v=Z8vO_-qOoL4

Keep an eye out as I hope to post up a New Zealand build that uses the same 9.1" WaterJet/LSA combination in a 4.7 m Scott Performance River Boat.

Merry Xmas!
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Scott 912 - 9.1" Two Stage with Trim - 4.75m NZ Jet Boat

Postby Scottwaterjet » Thu Jan 11, 2018 8:22 pm

The Scott 912 - 9.1" Two Stage with trim in a Scott Performance NZ River Jet Boat
~ 70mph
And some doughnuts for fun


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9.1" Two-Stage with Trim, LSA, On the lake New Zealand

Postby Scottwaterjet » Mon Feb 05, 2018 1:52 am

9.1" Two-Stage with Trim, LSA, On the lake New Zealand

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Re: Scott 912 - 9.1" Two Stage with Trim

Postby Upacreek » Sat Feb 10, 2018 10:13 pm

I volunteer my valuable time to take Jeff's boat for river trials in moving water and white water. I will need a drone and it's operator for documentation purposes. This woiuld be a huge sacrifice for the jet boat community, but I will endure this burden with grit and not complain too much. I would further propose launch site be Hells Canyon dam and travel down river to the salmon and back.

Anyone second my motion?
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Re: Scott 912 - 9.1" Two Stage with Trim

Postby FlyLow » Sat Feb 10, 2018 10:52 pm

Nice vids, boat sounds great. Sweet rock gaurd on the trailer at the end of the second video.
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Re: Scott 912 - 9.1" Two Stage with Trim

Postby Eagle1 » Sun Feb 11, 2018 1:00 am

Well on quick vote I will second that. When are WE leaving ?


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Re: Scott 912 - 9.1" Two Stage with Trim

Postby rockchuckar » Sun Feb 11, 2018 9:26 am

Eagle1 wrote:Well on quick vote I will second that. When are WE leaving ?


Eagle1



Give me a call !
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Re: Scott 912 - 9.1" Two Stage with Trim

Postby ''dig'n it'' » Tue Feb 13, 2018 10:43 am

wow I missed a lot while I was away. :Drop: Awesome!
One ugly boat in the works
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