I have been using 3 bladed Dumans 3 inch brass props but decided to try the props recommended by the group. Yesterday I "flew" the OpenROV on the brass props and then changed to the Graupner 65 mm props. There was a big difference in performance to the positive. It is easy to change them at the dive site as they are attached with 4-40 set screws. My neutral weight was off with the new props and I had trouble diving. The new props are lighter. I am going to stick with the Graupner plastic props and readjust my neutral weight.
Before I changed props I played with using keyboard "7" and "8" keys. These allow you to set the vertical speed of the motor so it stays on. I was able to adjust the speed to maintain depth and still drive around, this is very neat! I have played with this before but yesterday took the time to fine tune it watching my depth indicator.
Life is good!1206-dumansbrassprops.jpg (266 KB) 1207-graupnerprop.jpg (263 KB) 1208-openrov241propsp2.jpg (245 KB)