power enhanced the climb rate, top speed was little changed and these machines were converted back to RAF engines when they became available. Operational Service The F.K.3 was not adopted for use by operational squadrons of the RFC in France, as the more capable F.K.8 and R.E.8 were both already in prospect. Only one overseas unit received the F.K.3 (which was 47 Squadron at Salonika), all the other aircraft were based in the United Kingdom. Most of the aircraft were used for training until replaced by the Avro 504. Military operators Australian Flying Corps No. 3 Squadron AFC – Used for training. Bulgarian Air Force One aircraft, No. 6219 captured in 1917 – Royal Flying Corps/Royal Air Force No. 43 Squadron RFC No. 47 Squadron RFC No. 53 Squadron RFC No. 55 Squadron RFC No. 63 Squadron RFC Specifications (F.K.3) See also References Notes Bibliography F.K.03 F.K.03 Biplanes Single-engined tractor aircraft 1910s British military reconnaissance aircraft Aircraft first flown in 1915