| เครื่องวัดกระแสน้ำ | No | 90338 | ||||||||
| เครื่องวัดกระแสน้ำ | By | rod | ||||||||
| ยี่ห้อ | A-OTT | |||||||||
| Model | C 2 "10.150" | |||||||||
| Test certificate by | A-OTT | year1966 | ||||||||
| 1 | Propeller | No | 1 | if n | < | 1.91 | v = | 0.0620n | +0.012 | m/s |
| dia | if n | > | 1.91 | v = | 0.0573n | +0.021 | m/s | |||
| n | < | 8.33 | v = | 0.0573n | +0.021 | m/s | ||||
| if n | > | 8.33 | v = | 0.0537n | +0.051 | m/s | ||||