| เครื่องวัดกระแสน้ำ | No | 13167 | ||||||||
| เครื่องวัดกระแสน้ำ | By | Cable way | 55 | lbs | ||||||
| ยี่ห้อ | A-OTT | |||||||||
| Model | V "ARK" | |||||||||
| Test certificate by | A-OTT | year1966 | ||||||||
| 1 | Propeller | No | 1 | if n | < | 0.85 | v = | 0.2420n | +0.022 | m/s |
| if n | > | 0.85 | v = | 0.2620n | +0.005 | m/s | ||||
| 2 | Propeller | No | 2 | if n | < | 1.47 | v = | 0.2550n | +0.022 | m/s |
| if n | > | 1.47 | v = | 0.2620n | +0.005 | m/s | ||||