29' Fountain prop slip
#1
29' Fountain prop slip
Hi guys I wanna hear some others prop slip stories. I have a bravo 1 prop labbed by Brett at BBlades great job. Its a 28 1.5 XR. I took it out today and was cruising at 50MPH and spinning 4000RPM. calculators say this is 29% slippage. thanks in advance......
#2
What speed were you using? GPS or speedometer? If GPS speed that slip% is less than ideal. If that speed was off the speedometer I'd get a more accurate source, either radar or GPS for steady state measurements.
#4
Registered
That's really high. I would contact bblades if they did the work.
#7
Registered
#8
if i have lots of fuel and people I’ll throw the 26p on mid summer when the humidity is high.
i wanted to hear from other 29’ fountain guys what they are getting. If it’s normal to have high slip that’s fine.
The following users liked this post:
Nothing personel 353 (05-04-2020)
#10
Charter Member # 55
Charter Member
That gets it to 18.5% which is still on the higher side, but your top speed seems about normal. People sometimes get too hung up on slip%. My 28 Pantera had similar slip % numbers. The higher slip will help keep the drive alive too. I would bet a 1/2-1 inch drive spacer would help you also. I increased my drive spacer on my Pantera by and inch and slip numbers dropped some. I picked up about 3-4mph at cruise speed and 1-2mph on the top end and it carried the bow better.
The following 2 users liked this post by Griff:
Nothing personel 353 (05-04-2020), SB (05-05-2020)