| เครื่องวัดกระแสน้ำ | No | 8721 | ||||||||
| เครื่องวัดกระแสน้ำ | by rod | |||||||||
| ยี่ห้อ | A-OTT | |||||||||
| Model | ARKANSAS | |||||||||
| Test certificate by | A-OTT | year1966 | ||||||||
| 1 | Propeller | No | 1 | if n | < | 0.63 | v = | 0.2394n | +0.018 | m/s |
| n | > | 0.63 | v = | 0.2538n | +0.009 | m/s | ||||
| n | < | 3.61 | v = | 0.2538n | +0.009 | m/s | ||||
| if n | > | 3.61 | v = | 0.2574n | -0.004 | m/s | ||||
| 2 | Propeller | No | 2 | if n | < | 0.38 | v = | 0.4720n | +0.022 | m/s |
| if n | > | 0.38 | v = | 0.5120n | +0.007 | m/s | ||||