The Directly-Useful Technical Series 



THEORY AND PRACTICE OF 

 AEROPLANE DESIGN 



By S. T. G. ANDREWS, B.Sc. (Eng.), and 

 S. F. BENSON, B.Sc. (Eng.). 



Demy 8vo. 466 pages. 15/6 net. 



Contains chapters yn: Principles of design Materials of design Properties 

 of aerofoils Stresses in aeroplane components Design of wings Resistance 

 and stream-lining Design of fuselage, chassis, airscrew, and control surfaces 

 Stability Performance Lay-out of machines, etc. 



A TREATISE ON AIRSCREWS 



By W. E. PARK, Wh.Sc., A.R.Coll.Sc. 

 Demy 8vo. 320 pages. 21/- net. 



CONTAINS CHAPTERS ON : 



Part I. General Theory and Design. 



Elementary theory Stresses in an airscrew Aerofoils suitable for airscrew 

 sections Application of theory Characteristic curves Airscrew types 

 Variation of blade dimensions Practical effects Drawing office design. 



Part II. Construction. 



General principles Preparing propeller blocks Shaping and finishing pro- 

 cesses Inspection Constructional tests on finished propellers Timber saving 

 and special methods Metal propellers. 



MATHEMATICS FOR ENGINEERS 



By W. N. ROSE, B.Sc. Eng. (Lond.). 



Part I. Demy 8vo., 510 pages. 257 Figures, with over 1200 set 

 and worked Examples. Price 10/6 net. 



Part II. Demy 8vo. 436 pages. 142 Figures, and nearly 1000 

 set and worked examples. Price 13/6 net. 



DETAILED PROSPECTUSES SENT ON APPLICATION 



