▁ed ged ▁with ▁some ▁swe ep ▁on ▁the ▁leading ▁edge , ▁it ▁had ▁a ▁th inner ▁aer of o il ▁section ▁than ▁that ▁of ▁its ▁prede cess or ▁and ▁was ▁fabric ▁rather ▁than ▁p lywood ▁covered . ▁ ▁Over hung ▁a iler ons ▁were ▁used , ▁their ▁ends ▁project ing ▁out board ▁of ▁the ▁squ ared ▁wing ▁tips ▁proper , ▁acting ▁as ▁aer od ynamic ▁bal ances . ▁The ▁lower ▁wing , ▁which ▁lack ed ▁a iler ons , ▁was ▁both ▁much ▁shorter ▁in ▁span ▁and ▁smaller ▁in ▁ch ord . ▁The ▁early ▁D . X II ▁had ▁a ▁V - form ▁inter plane ▁str ut ▁on ▁each ▁side ; ▁another ▁str ut ▁le ant ▁out ▁from ▁each ▁wing ▁root ▁to ▁the ▁upper ▁rear ▁sp ar , ▁assist ed ▁ahead ▁of ▁it ▁on ▁each ▁side ▁by ▁a ▁short ▁V - form ▁pair ▁linking ▁the ▁two ▁sp ars ▁to ▁the ▁upper ▁fus el age ▁longer on , ▁acting ▁as ▁N - form ▁cab ane ▁str uts . ▁ ▁The ▁fus el age ▁of ▁the ▁D . X II ▁was ▁flat ▁s ided ▁and ▁deep ▁from ▁nose ▁to ▁tail . ▁Initial ly ▁it ▁had ▁the ▁same ▁ 3 0 0   ▁h p ▁( 2 2 4   k W ) ▁His p ano - Su iza ▁ 8 F ▁V - e ight ▁engine ▁as ▁its ▁prede cess or , ▁but ▁this ▁was ▁soon ▁replaced ▁by ▁the ▁USA AS - spec ified ▁ 4 4 0   hp ▁( 3 2 8   k