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| Whistle No. 3M |
Hear
it! (pc) | Hear it! (mac) |
Hear it! (realaudio)  |
| |
| Specifications |
Free air consumed
(cubic ft./sec.) |
.45 |
| Net weight (lbs.) |
24 |
Frequency
cycles/sec. |
220 |
| Line size |
3/4" |
| db at 25 ft. |
120 |
| Audibility Distance Rating* |
2 1/4 - 3 3/8 miles |
| *
Per Coast Guard Rating Method |
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