Aircraft Mentioned in NACA Cowling article

 

p15-1.jpg (26678 bytes)
Boeing XP-15 with Townend Ring cowling

 

curtiss_p-3_hawk_townend.jpg (25096 bytes)
Curtiss P-3 Hawk with Townend Ring cowling

 

curtiss_p-3_hawk_naca.jpg (40665 bytes)
Curtiss P-3 Hawk with NACA cowling

 

sperry-m1a.jpg (20677 bytes)
Sperry M-1A Messenger

 

botwing.gif (974 bytes)
2003 Wings Publishing