Complex sentence: This test proved successful, leading to many radio-controlled models being constructed in the band rehearsal room at Pinewood Studios, over a period of two years, including a total of 82 Spitfires, Hurricanes, Messerschmitts and He 111s.
Split into simpler sentences: This test proved successful, leading to many radio-controlled models being constructed in the band rehearsal room at Pinewood Studios. Over a period of two years, a total of 82 Spitfires, Hurricanes, Messerschmitts and He 111s.