Add this copy of Into the Unknown: X-1 Story to cart. $42.61, good condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Santa Clarita, CA, UNITED STATES, published 1994 by Airlife.
Add this copy of Into the Unknown: X-1 Story to cart. $66.49, new condition, Sold by Just one more Chapter rated 4.0 out of 5 stars, ships from Miramar, FL, UNITED STATES, published 1994 by Airlife.
Add this copy of Into the Unknown: X-1 Story to cart. $85.88, new condition, Sold by GridFreed rated 5.0 out of 5 stars, ships from North Las Vegas, NV, UNITED STATES, published 1994 by Airlife.
Add this copy of Into the Unknown: X-1 Story to cart. $173.81, new condition, Sold by Bonita rated 4.0 out of 5 stars, ships from Santa Clarita, CA, UNITED STATES, published 1994 by Airlife.
This book is addressed to the specialized researcher. Most of the book covers in detail the various meetings between Bell, Air Force and NACA as well as the test flights that were performed by Bell and later by the Air Force. A highly recommended in depth research on the X-1.
