So another ROV update, I did some tests of bilge pump motors as thrusters and got some interesting results
Results
| Model | Direction | Voltage (V) | Current (I) | Power  |
Thrust (lb) | W/lb |
| 1000gph w/ propeller | Forward | 12.5 | 7A | 87.5 | 1.25-1.5 | 58-70 |
| Reverse | 12.5 | 7.5 | 93.75 | 1-1.25 | 75-93.75 | |
| 500gph w/ propeller | Forward | 13.0 | 5.0 | 65.0 | 0.5 | 130 |
| Reverse | 13.0 | 4.5 | 58.5 | 0.75 | 78 |
These are some strange results that I need to reconcile before carrying forward, particularly the odd thrust value of the 500gph motor in forward.
Future plans involve testing nozzle shapes such as straight nozzles, nozzles with collimating fins (to reduce turbulent flow or increase laminar flow), and Kort rings. Anyone with expertise in this area feel free to chime in with comments.
Procrastinatus 