Instruct: Classify Amazon reviews into positive or negative sentiment
Query: You need this book!

If you have ever been around this remarkable aircraft, you need this book. Mr. Lloyd was on the Boeing payroll when this aircraft was being designed and produced.I attended a lecture given by him at the Museum of Flight and have an autographed copy of his book, the most authoritive one on the aircraft I have found.I had the pleasure of working on the last of the fleet, the RB-47H, as an electronics technician and am proud of my experience in SAC and with this aircraft.You can see one for real at the National Museum of the US Air force in Dayton, OH. (One that I actually worked on: 53-4299)