3 ms·
Not really. In the first two years (from May 1957 to May 1959), R-7 had 56% failure rate (23 launches, 13 failures). It is now one of the most reliable rockets.
by pps43 10y ago
Not really. In the first two years (from May 1957 to May 1959), R-7 had 56% failure rate (23 launches, 13 failures). It is now one of the most reliable rockets.