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| | Saab 37 Viggen |
 | | By the time this version was in final design, it was clear that guns were definitely useful, so it was given the most powerful cannon a fighter has had, a 30 mm Oerlikon KCA with 150 rounds. |
 | | Even if it's not followed, the pitch and yaw channels have enough authority to precision aim the cannon, reducing pilot workload letting him or her concentrate on tactics and situational awareness. |
 | | The external tank is the same size as on the other versions, but because there's a bulge where the gun is installed, there is no room for the abbrevited top fin of the tank, instead of three fins, this tank has four fins, in a flattened 'X'. |
| www.canit.se /~griffon/aviation/text/37viggen.htm (2486 words) |
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