| เครื่องวัดกระแสน้ำ | No | 13165 | ||||||||
| เครื่องวัดกระแสน้ำ | By | Cable way | 55 | lbs | ||||||
| ยี่ห้อ | A-OTT | |||||||||
| Model | V "ARK" | |||||||||
| Test certificate by | A-OTT | year1966 | ||||||||
| 1 | Propeller | No | 1 | if n | < | 1.43 | v = | 0.2515n | +0.020 | m/s |
| dia | 125 mm | if n | > | 1.43 | v = | 0.2620n | +0.005 | m/s | ||
| 2 | Propeller | No | 1a | if n | < | 1.55 | v = | 0.2515n | +0.023 | m/s |
| dia | 125 mm | if n | > | 1.55 | v = | 0.2625n | +0.006 | m/s | ||