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Get F3K Timer old version APK for Android
F3K (HLG 또는 DLG) 모델 콘테스트에 대한 중지 시계 프로그램
The stop watch program for F3K (HLG or DLG) model contests!
automatic calulation of the left flight time in accordance with the actual task.
Your can invalidate current/last flight or mark it as outlanding.
Adjustable working time.
Your can enter a new poker time during the flight.
Airplane and wake lock mode (need user permissions and for Android < 4.2).