Model Variants (Including Prototypes)
JN-4 - Base Series Designation and initial production version.
JN-4A - Production based on the JN-4; 781 examples.
JN-4B - Fitted with Curtiss OX-2 piston engine; 85 examples completed.
JN-4C - Two experimental types.
JN-4 "Canuck" - Canadian version based on the JN-3; 1,260 examples completed.
JN-4D - Improved Jenny; control stick feature of the Canadian JN-4 "Canuck"; 2,812 examples produced.
JN-4D-2 - One-off prototpe with revised engine mount.
JN-4H - Advanced trainer; Hispano-Suiza 8 engine; 929 examples produced.
JN-4HT - Basic Trainer
JN-4HB - Bombing Trainer
JN-4HG - Gunnery Trainer
JN-4HM - Communications Platform
JN-5H - One-off advancede trainer concept
JN-6 - Improved Jenny; based on the JN-5 prototype.
JN-6H - Improved JN-6
JN-6BH - Bomber Trainer
JN-6HG-1 - Basic Trainer Trainer
JN-6HG-2 - Gunnery Trainer
JN-6HO - Observer Trainer
JN-6HP - Fighter Trainer
JNS - Standardized Jenny conversions of the 1920s.