Deltoid Pumpkin Seed - 7 Author:John McPhee This is the fascinating story of the dream of a completely new aircraft, a hybrid of the airplane and rigid airship - huge, wingless, moving slowly through the lower sky. Its early and secrect experimenta; development took twelve years' time and one and a half million dollars. McPhee chronicles the perhaps unfathomable perseverance of the aircra... more »ft's successive progenitors and makes it seem as momentous as the first trip to the moon.« less