proping an 89 flat deck
06-19-2019, 11:51 AM
#1
Platinum Member
Platinum MemberThread Starter
iTrader: (6)
proping an 89 flat deck
The boat in an 89 TG with notch transom, is 575-600 hp enough power to spin 28 4 blades to 5000-5200 ?
06-19-2019, 12:05 PM
#3
Platinum Member
Platinum MemberThread Starter
iTrader: (6)
06-19-2019, 12:35 PM
#5
Platinum Member
Platinum MemberThread Starter
iTrader: (6)
He's not sure no speedo working in the boat, Id guess 68-72 but just a guess, I'm just trying to get the rev's down and pick up a little speed
06-19-2019, 12:49 PM
#7
Platinum Member
Platinum MemberThread Starter
iTrader: (6)
06-20-2019, 01:05 AM
#8
Charter Member # 55
Charter Member
A 38 Flatdeck will be around 11k dry. It will depend on the hp/torque curve of the engines as to how to prop it.
I would say to try going up 2-3 inches in pitch to start. I doubt he would be able spin the 28 Bravos to 5000rpm.
I would say to try going up 2-3 inches in pitch to start. I doubt he would be able spin the 28 Bravos to 5000rpm.
06-20-2019, 05:10 AM
#9
Gold Member
Gold Member
iTrader: (5)
Join Date: Oct 2005
Location: Olmsted Falls,Ohio Marblehead,Oh
Posts: 11,634
Likes: 0
Received 204 Likes
on
132 Posts
Top gun will weigh around 9800-10,000 with light to no fuel, what drives?
That HP with TRS?? your looking at worked 25 Mirage plus or 24 Hydromotives spinning 54-5600 range, or a 24-26 Bravo around 5200 speed should be 74-77 ish depending on actual HP it has and conditions.
If Konrad boat with 600 HP a 26 Bravo1 will spin 5200@ 73 mph or close to it. or a 28 to 5000rpm at 71mph
That HP with TRS?? your looking at worked 25 Mirage plus or 24 Hydromotives spinning 54-5600 range, or a 24-26 Bravo around 5200 speed should be 74-77 ish depending on actual HP it has and conditions.
If Konrad boat with 600 HP a 26 Bravo1 will spin 5200@ 73 mph or close to it. or a 28 to 5000rpm at 71mph
