Complex sentence: Six Saab 91 Safir training airplanes were bought in Sweden and flown to the new airbase 24 December 1946, and on 10 November 1947 a fleet of 16 Saab-built B-17s were landed at Bishoftu by Swedish pilots.
Split into simpler sentences: Six Saab 91 Safir training airplanes were bought in Sweden and flown to the new airbase 24 December 1946. On 10 November 1947, a fleet of 16 Saab-built B-17s were landed at Bishoftu by Swedish pilots.