Analysis of information sources in references of the Wikipedia article "N1 (rocket)" in English language version.
Because the first stage was so big, the decision was made to forego building a separate test facility for it, and instead to try to discover any problems with a series of full-up launches. In hindsight, this would prove to be a mistake, because each of the four launch attempts of the N-1 resulted in failure due to various problems with the first stage.
Because the first stage was so big, the decision was made to forego building a separate test facility for it, and instead to try to discover any problems with a series of full-up launches. In hindsight, this would prove to be a mistake, because each of the four launch attempts of the N-1 resulted in failure due to various problems with the first stage.