28 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL, 62 



For this aeroplane we have, for example, 



'f'S 



i3 '^o 



O S3 



-3 ^O 



'JO 



-/S 



-^O 





■JiS 





/o 



i-O" -^JS' ^^° ^6° ''<9 ° ^^^ " ^/^ * 



~6' -y-" ->2" O' tja" t^' ts' 



I'l.i. ID.— A', Z, and M for ir=:6°. 

 For this aeroplane we have, for example: 



771 = 50 slugs, ^0 = 0. 



U — — II 2.5 foot-seconds (high speed, 76.9 miles per hour), 

 j = o, normal attitude. 



