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| Sukhoi Su-7BKL |
| In 1960's there was wide spread opinion among military specialists that military jets have to be able to fly on soft-surface runways during war conflicts. Because main (concrete) runways could be easily put out of operation by the enemy strikes. This idea influenced on new variant of the wide-spread Sukhoi Su-7B fighter-bomber — Su-7BKL (NATO-code «Fitter»). First prototype of this modification performed its maiden flight in 1962. |
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