Hangar 9 Extra 260 Assembly Manual page 38

Section 12 – Cowling Installation
 Step 4
Remove the bottom rear edge of the cowl for an air
exhaust. This is important for engine cooling.
For DA-50 and canister muffler
For DA-50 and pitts muffler
38
 Step 5
Install the propeller and spinner to complete the
cowling installation.