Design and development Blue Yonder Merlin

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rotax 912uls 100 hp installation in blue yonder merlin ez



1990 model macair merlin gt


the merlin designed in 1986 john burch, intended use in flight training school. burch disappointed ultralights available, in particular inability take off , land in crosswinds. aircraft wing inspired lazair s wing , used same aluminum d cell , foam rib construction techniques , constant-tapered wing planform. first example flew in 1987.


the merlin won pilot s choice award best ultralight @ aircraft sport expo in 1988.


burch formed macair industries in baldwin, ontario produce aircraft. there 2 versions: merlin m50 powered 50 hp (37 kw) rotax 503 two-stroke powerplant , merlin gt , sport 65 version powered 64 hp (48 kw) rotax 532 , later 582. 100 hp (75 kw) honda-based cam 100 engine available option.


in 1991 burch moved production of merlin michigan, usa under new company name, malcolm aircraft. within short time company went out of business , merlin picked new company in 1993 operating under name of merlin aircraft marketed merlin gt. after 3 years company ceased business , rights design acquired blue yonder aviation of indus, alberta continue produce kits. marketing in united states conducted aerocomp (now comp air) time, arrangement has been ended.


blue yonder s current model merlin ez has option of engines: rotax 582 of 64 hp (48 kw), rotax 912ul 80 hp (60 kw) , 912uls 100 hp (75 kw). rotax 618 two-stroke powerplant of 74 hp (55 kw) option until engine discontinued rotax. merlin used testbed aircraft development of hexadyne p60 engine.


the merlin ez uses same foam-rib construction previous models, constant-chord wing clark y airfoil replacing tapered wing. fuselage of 4130 welded steel tube construction, covered in aircraft fabric. factory estimates build times @ 350–450 hours of labour.


merlin manufacturers

blue yonder fourth manufacturer of merlin design. companies have built merlin were:









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