| เครื่องวัดกระแสน้ำ | No | 12643 | ||||||||
| เครื่องวัดกระแสน้ำ | By | Cable way | 55 | lbs | ||||||
| ยี่ห้อ | A-OTT | |||||||||
| Model | V "ARK" | |||||||||
| Test certificate by | A-OTT | year1966 | ||||||||
| 1 | Propeller | No | 1 | if n | < | 0.60 | v = | 0.2270n | +0.027 | m/s |
| dia | 100 mm | if n | > | 0.60 | v = | 0.2453n | +0.016 | m/s | ||
| < | 3.81 | v = | 0.2453n | +0.016 | m/s | |||||
| if n | > | 3.81 | v = | 0.2495n | ||||||