V-form wing struts. LNB-4 Parasol - Wing with square tips. CA-1A Super Parasol - Bigger wing span and N-form struts. LNA-40 Parasol - Wing with square tips. CA-1A Super Parasol - Bigger wing span. V-Parasol - V-form struts and Continental A40 engine. Surviving aircraft [change | change source] 1. ↑ Banerjee, Indrajit; Logan, Stephen (2008). Asian Communication Handbook 2008. AMIC. ISBN 978-981-4136-10-5.