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-   -   proping an 89 flat deck (https://www.offshoreonly.com/forums/general-q/361341-proping-89-flat-deck.html)

F-2 Speedy 06-20-2019 09:03 AM

Thanks for the info guys, I asked him for mph #'s from 4k to 6k in 500rpm increments, it does have gps speedo but he wasn't watching it, it is a trs boat so I don't want to put to much stress on them, boats been sitting for 5 years, I fixed the engine problems a few weeks ago he's just glad to be back on the water.

endeavor1 06-20-2019 10:44 AM

Ken, I’ve got a set of 26 4 blade bravo 1s if you would like to try them out on his boat. I don’t want to sell them but you’re welcome to test with them.

F-2 Speedy 06-20-2019 11:02 AM


Originally Posted by endeavor1 (Post 4692934)
Ken, I’ve got a set of 26 4 blade bravo 1s if you would like to try them out on his boat. I don’t want to sell them but you’re welcome to test with them.

Thanks man, I'll check with Mike..........are they in KC ?

endeavor1 06-20-2019 01:38 PM

Yes. I’m in Lenexa most mornings and can bring them if you want to meet

Full Force 06-21-2019 05:35 AM

With TRS and 575-600 HP personally I would stick with 3 blades if he beats it at all, leave that couple % of slip trust me... I bet a worked 25 mirage will perform great and help keep drives alive, that power level is about all them tiny lower gears will take and stay together, 4 blades or more then 600 HP create time bombs.

flashgordon 06-21-2019 09:45 AM

my 2 cents
i am spinning 4 blade 26 pitch hydromotive props
considering still getting use to these motors
547 about 700hp???
boat ran 82 at 5600, 4 people full tank of gas, and flat water

flashgordon 06-21-2019 11:18 AM


Originally Posted by Full Force (Post 4693035)
With TRS and 575-600 HP personally I would stick with 3 blades if he beats it at all, leave that couple % of slip trust me... I bet a worked 25 mirage will perform great and help keep drives alive, that power level is about all them tiny lower gears will take and stay together, 4 blades or more then 600 HP create time bombs.


TIME BOMB?????
hmmm really i hope not,,,, well i know my boat has had same set up since early 90's
i know prior owner had one drive rebuilt, never said anything more.
but i have owned boat since 2012 ,,same props,,600 hp now 700 hp
i just try to run easy on drives and boat..keep it in the water...

ICDEDPPL 06-22-2019 12:18 AM


Originally Posted by Griff (Post 4692886)
A 38 Flatdeck will be around 11k dry.

plus 2,000lbs

Full Force 06-23-2019 08:36 PM


Originally Posted by flashgordon (Post 4693097)
TIME BOMB?????
hmmm really i hope not,,,, well i know my boat has had same set up since early 90's
i know prior owner had one drive rebuilt, never said anything more.
but i have owned boat since 2012 ,,same props,,600 hp now 700 hp
i just try to run easy on drives and boat..keep it in the water...

I guess it's because I use mine like intended, I don't baby it, why have it? I bought a SSM boat after trying to keep TRS alive for years...


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