| เครื่องวัดกระแสน้ำ | No | 90374 | ||||||||
| เครื่องวัดกระแสน้ำ | By | rod | ||||||||
| ยี่ห้อ | A-OTT | |||||||||
| Model | C 2 "10.150" | |||||||||
| Test certificate by | A-OTT | year1966 | ||||||||
| 1 | Propeller | No | 1 - 90268 | if n | < | 2.50 | v = | 0.0638n | +0.012 | m/s |
| 0.05 m | if n | > | 2.50 | v = | 0.0558n | +0.032 | m/s | |||
| < | 6.96 | v = | 0.0558n | +0.032 | m/s | |||||
| if n | < | 6.96 | v = | 0.0535n | +0.048 | m/s | ||||
| 2 | Propeller | No | 2 - 90426 | if n | < | 5.56 | v = | 0.1036n | +0.012 | m/s |
| 0.10 m | if n | > | 5.56 | v = | 0.1027n | +0.017 | m/s | |||
| 3 | Propeller | No | 3 - 89288 | if n | < | 0.69 | v = | 0.2351n | +0.018 | m/s |
| 0.25 m | if n | > | 0.69 | v = | 0.2540n | +0.005 | m/s | |||