plane depicts a maximum lift coefficient at 
approximately 43’ angle of attack. Such dras- 
tic angles of attack are impractical in many 
respects. If the airplane is operated at such 
high angles of attack an extreme landing gear 
configuration is required, induced drag is ex- 
tremely high, and the stability of the airplane 
may seriously deteriorate. Thus, the modern 
conhguration of airplane may have “minimum