... ( Grumman ) Ag - Cat Length : 25'7 " ( 7.80 m ) Wingspan : 42'3 " ( 12.88 m ) Working speed : 98 mph ( 158 km / h ) Distinguish this biplane / agplane from older biplanes converted to crop use by its massive , high tail fin ; all - metal ...
... and thus raise the hourly cost where radial engines are used , as on the Grumman Ag Cat and the Aero Commander Thrush . The pilot allowance is figured at $ 15 per hour , but a share OPERATIONAL ANALYSIS OF AIRCRAFT USE 123.