Complex sentence: This modification of abundant military aircraft into desperately needed civil transports was common in the United Kingdom in the immediate post-war period: the Handley Page Halton was a similar conversion of the Halifax, another RAF heavy bomber.
Split into simpler sentences: This modification of abundant military aircraft into desperately needed civil transports was common in the United Kingdom in the immediate post-war period. The Handley Page Halton being a similar conversion of the Halifax, another RAF heavy bomber.