| เครื่องวัดกระแสน้ำ | No | 90373 | ||||||||
| เครื่องวัดกระแสน้ำ | By | rod | ||||||||
| ยี่ห้อ | A-OTT | |||||||||
| Model | C 2 "10.150" | |||||||||
| Test certificate by | A-OTT | year1966 | ||||||||
| 1 | Propeller | No | 1 - 90267 | if n | < | 1.86 | v = | 0.0615n | +0.017 | m/s |
| 0.05 m | if n | > | 1.86 | v = | 0.0572n | +0.025 | m/s | |||
| < | 5.93 | v = | 0.0572n | +0.025 | m/s | |||||
| if n | > | 5.93 | v = | 0.0545n | +0.041 | m/s | ||||
| 2 | Propeller | No | 2 - 90625 | if n | < | 6.36 | v = | 0.1037n | +0.012 | m/s |
| if n | > | 6.36 | v = | 0.1026n | +0.019 | m/s | ||||
| 3 | Propeller | No | 3 - 88959 | if n | < | 0.62 | v = | 0.2342n | +0.016 | m/s |
| if n | > | 0.62 | v = | 0.2520n | +0.005 | m/s | ||||