Just got my 23 hp and i have it on a 1440 Xpress with me. I am looking at 28mph with my son and all my fishing stuff and about 24mph on full plain. We are running in 2" of water on the colorado river here in La Grange, TX, where the water is very low. I just made the river longer for me to fish. I love my Copperhead mud motor and thank you VENOM OUTDOORS.COM!