Complex sentence: The Lockspeiser LDA-01 (Land Development Aircraft) was a British seven-tenths scale research and development aircraft, which was designed and built by David Lockspesier to prove a concept for a low-cost utility transport.
Split into simpler sentences: The Lockspeiser LDA-01 (Land Development Aircraft) was a British seven-tenths scale research and development aircraft. Designed and built by David Lockspesier to prove a concept for a low-cost utility transport.