I did enough!

As a task before breakfast, long continued suffering problem on the setback error in air-cooled VW Super Beetle 1302 was corrected. Unacceptable wondering habit by right side going potential tendency has disappeared thoroughly, obtaining the terminal 4 points for scaling is the critical key to know the rate of the setback error. Primitive but effective jig device was fabricated to adopt onto 4 hub outer points promptly. Recorded 4 points on the ground play terminal points to know the constructive geometry error. Actual measuring and acquired numerical datum obliged me to adjust the right sway bar bush holding blacked reposition backward 0,90mm. I wanna write down here again, there is no individual habit that cannot be correct in a passenger's car however long and persistent it has been drawn on the specific automobile.

KYOSHO Sukhoi Su-31 40 with 1380mm wing span had big operation to accept YS 60SR motor as a stronger power source. Span was increased 120mm into 1500mm and the tail moment has also 90mm extension. Time-consuming modification as it was, this Su-31 model airplane would fly as an old full sized one with a 10cc motor.

In order to prevent the influences on the Radio and Servos by the crank shaft's torsion and knocking vibration, some rubber insulator were applied between metallic engine mount and the wooden motor bed. The assistant while taking-off to bring the airplane to the run-way would feel the difference of the vibration. The compliance for the mechanical and destructive vibration of the combustion motor would play a good part of our hobby life.