HI !

I HAVE THE JHH A-4 WITH TURBAX AND KB 7.5 .AND TAKE OFF
IN 250. AND ITS A GREAT TRAINER( MY FIRTS JET) FIRTS IF YOU HAVE A CHEATER HOLE IN THE WING , YOU DONT HAVE THE YELLOW ONE ,YOU HAVE THE JHH. I HAVE NEVER SEEN A YELLOW ONE WITH CHEATER IN THE WING , BECAUSE THE WINGS ARE PLUG IN THE FUSE .THE .91 NOT NEED IT..IT PERFORMS BETTER WITH OUT IT . THE CHEATER HOLES ARE FOR SAMLL ENGINES .46 THA A-4 FLYS BEST AT 10 POUND AND TEND TO BE OVERWEIGHT WITH THE .91 AND ALL THAT FUEL. HOW MANY ONCES OF FUEL YOU ARE CARRING ?
WERE ARE LOCATED YOUR FUEL TANKS?. FIRTS I USE A 24 OZ IN THE NOSE IN A PLYWOOD PLATE UNDER THE CANOPY AND THE PLANE BECAME VERY NOSE HEAVY DURING TAKE OFF. IF THAT YOU CASE USE 2 11 OZ DUCTED FAN TANKS NEAR THE FAN A CG.
DO YOU HAVE THE 40 OR 45 INCH WING. IF YOU HAVE THE 40 AND .91 SIZE ENGINE I THINK 350 FTS ARE NOT THAT BAD

PECOJETS