The meter is a Fluke 73 and the error is probably operator. The readings are incorrect by a minimum of 0.01 which is the reading without servo connected. The meter is not auto ranging on the amp scale and will not resolve in the third decimal place. The no load value could be between 0.005 and 0.015.

Aileron barn door – 2 1/2” by 19 3/4” = 49.4 sq in
Boost tab – 1” by 7 1/2” = 7.5 sq in

Servo - S-148 Futaba analog
Stall current – 0.60 amp
No load current – 0.02 amp

Both pictures show the test setup. The boost tab hinges have not been epoxied since reference values are needed before permanently adding tabs.

The driver returned after dark so the data will be tomorrow.


Bill