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15. oldal
It was highly unlikely that this made any difference , but a small increase in safety , probably sufficient to compensate for the increased difficulty of maintenance , had been obtained by moving them nearer to the top since the ...
It was highly unlikely that this made any difference , but a small increase in safety , probably sufficient to compensate for the increased difficulty of maintenance , had been obtained by moving them nearer to the top since the ...
22. oldal
sec . could be increased to 4 km./sec . , a three - step rocket would become practical for the Earth - orbit voyage , and a five - step for the orbit - Moon - orbit . But for the Mars expedition , even if the best present structural ...
sec . could be increased to 4 km./sec . , a three - step rocket would become practical for the Earth - orbit voyage , and a five - step for the orbit - Moon - orbit . But for the Mars expedition , even if the best present structural ...
7. oldal
The only other noticeable external change is in the outboard fins , the areas of which have been increased by splicing in two separate chordal strips , one 18 inches deep above and the other 9 inches deep below , the horizontal tail .
The only other noticeable external change is in the outboard fins , the areas of which have been increased by splicing in two separate chordal strips , one 18 inches deep above and the other 9 inches deep below , the horizontal tail .
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