Table of Comparison - Subchaser specifications
| WWI SC-1 Class | WWII SC-497 Class |
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| Length Overall | 110' 0" | 111' 6-¾" |
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| Extreme Beam | 14' 8.75" | 17' 11.5" |
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| Displacement (Tons) | 85 | 98 |
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| Engines | 3 standard 220 hp Gasoline, 3 screws | Two GM straight 8 Diesel (8-268-A) 1440 hp, or Two GM 16 cyl. 184-A “pancake” engines |
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| Speed | 18 knots | 15.6 knots or 21 knots |
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| Maximum Draft, full load | 5' 8" | 6' 6" |
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| Armament |
- 1 3"/23 cannon
- 2 30 cal. Machine guns
- 1 DCP “Y” gun and depth charges
|
- 1 Single 40 mm Bofors or 1 3"/50 cannon (forward)
- 3 Single 20 mm Oerlikon (midships)
- 1 Twin 50 cal. machine gun (optional) (aft)
- 2 K-guns
- 14 depth charges 300 lb each with 6 single release chocks
- 2 sets Mark 20 mousetrap rails, each mounted with 4 7.2" projectiles
|
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| Complement | 2 officers, 25 enlisted | 3 officers, 24 enlisted |
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| Endurance | 1,000 nautical miles @ 12 knots | 1,500 nautical miles @ 12 knots |
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