User Manual

19Hangar 9 P-51D Mustang Sport 40 Assembly Manual
 Step 2
Use cardstock to make template indicating the needle valve,
engine head and muffler, as well as any other items that may
protrude through the cowling.
 Step 3
Remove the engine from the firewall and position the clear
cowling on the front of the fuselage. Use the templates and a
felt-tipped pen to transfer the locations to the clear cowling.
 Step 5
Use the clear cowl as a template tor the painted cowl. Trim
the clear cowl to fit your particular engine. Remember to
leave enough room to install the muffler.
 Step 5
Use hobby scissors and a rotary tool with a sanding drum to
neatly trim the painted cowl.
 Step 6
Slide the cowling on the fuselage. The spinner backplate
will then be slid on the propeller shaft. Make sure the drive
washer on the engine in positioned correctly and the spinner
backplate is tight against the drive washer.
Note: The Dubro spinner will include adapters to fit a
variety of engine shafts. Make sure to select the correct
adapter for your application.
Note: The spinner is not included and will need to be
purchased separately.