All-
I have an Impulse 31 that I am preparing to make a prop mod on away from the stock. I am OVERWHELMED by the choices and the options, and could use some advice from a few pros... so I don't go broke buying 10 of these things to attempt trial and error and still not get a hit.
Based on previous research, it appears that there is some concensus on:
Prather 230
1.90" Diameter 3.0" Pitch
X445
Diameter: 1.77"
Total Pitch: 1.4x1.77=2.478
Grim Racer 42mm x 55mm
Total Pitch = 1.65" x 2.17" = 3.58 (converted mm to inches)
So the stock prop based on what I can get off the Proboat webiste is:
Proboat Impulse 31
1.6 in x 2.5 in = 4.0 Pitch
Soooooo....
What forms of speed, electrical drain, and ride characteristics can I expect between these 3 options exactly? The X445 seems like a good fit given the larger diameter, and the Prather looks like it mght be large enough to really stress the stock ESC and motor? Is the pitch on the stock Proboat prope really 4"??? I was questioning that. The Grim Racer also looks enticing, and it looks like all it requires is balancing vs polishing and balancing.
Here is my setup:
4s2p 5300 mah 30C
All stock... and only looking for a good prop choice (or two) to experiment with pushing the boat to it's limits on ocassions, accepting that run time will be whacked.
Thanks for any inputs the forum has to offer! This is a great community out here!
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