Document (Item) - A Note On The Balancing Of Control Surfaces & Brake Flaps With Suggestions For A New Method Of Historical information Description: Date: April 1942Author: A.S. Hartshorn, B. ScPublisher: Royal Aircraft EstablishmentPages: 42Binding: Permanent? SoftKeywords: Farnborough Report No. Aero 1721File No 18A Level of Importance: National.