Note the scale openings got blanked.
on my new pattern plane 'mommacass', a modified Cassut lookalike, the frontal opening is tight to the cylinder of the 40 cc ZDZF3A -it is an extractor setup . cowl is tight to sides of cyl. no cheekcowls (why in the ---some "pattern planes have those blips on eiher side of cowl is beyond me.)
the tip plates :
it may sound strange -but the EDGE with 4" cut from each panel and the tip plates is better in all maneuvers than the stock setup - there is no hint of being higher in wing loading.-tho it is .
knife edge and or knife edge loop is easy and in knife flight, fuselage is at a very low AOA .
even at low/moderate speeds
cg is at 30% MAC
The high power and engine response may cloud my overall asessment but low speed flying just seems very light. super quick roll response and stop