ZR-I Launched

Fully inflated, ready in every detail, the enormous ZR-1 was slowly released from its cradle by the escape of 8 tons of water from its ballast tanks. Three hundred marines and sailors guided the immense bag across the shed at Lakehurst, N. J., and anchored it at the entrance. Exhaustive engine tests will precede the trial flight on Sept. 1, a momentous date for American aviation.