Description
The Pooleys NM-2 (420mm) is the standard flying school issue scale rule. Its outside edges read nautical miles at 1:500,000 and 1:250,000, and the centre scale converts between kilometres and statute miles.
Specifications
| Length | 420mm |
|---|---|
| Outside edges | To 110nm at 1:500,000 and to 55nm at 1:250,000 |
| Centre scale | Kilometres 0–200km at 1:500,000; statute miles 0–125 at 1:500,000 |
