12 |
P a g e
Edge 540/2.6m
Parts Required:
§
Cowl Assembly
§
Fuselage Parts Bag
§
Standoffs. 2 SWB adjustable stand off s
Tools Required:
§
Electric Drill
§
Drill Bit various
§
Square (rule)
§
Steel rule(s)
§
Level
§
Masking tape
§
Marking pen
The engine installation requires that the cowl assembly be fitted
first. In order to obtain correct engine to cowl alignment, you will
need to get some reference marks that can only be obtained when
the cowl is complete and fitted. The Edge cowl is shaped to
accommodate a 5” spinner, and correct alignment will enhance the
appearance when done correctly. First up you need to attach the
cowl assembly, and transpose the spinners centre from the cowl to
the fuselage firewall. It’s not really that difficult, but you may want
another set of hands available to assist you.
Don’t be tempted to just use the bottom portion of the cowl only!
While this makes the process look a little simpler, the cowl can
change it’s over all shape when both halves are joined, resulting in
an incorrect spinner to cowl alignment. So, let’s get started!
First up you need to mask off the ply firewall on the fuselage, then
fit the cowl securely. Next, we are aiming to image the spinner
centre from the cowl onto the firewall. To do this we will need a
square (ruler) and a small steel rule. Place the small steel rule
across the horizontal centre line in the spinner area of the cowl.
Using your square set flat against the firewall, find the horizontal
line as indicated by the small rule, and make a mark. You have
now found the horizontal line for the engine.
To find the vertical line place the small steel rule edge onto the
spinner area of the cowl. Place the square horizontally flat against
the fire wall, and move into the spinner centre position, mark this
position on the firewall. Now that you have a vertical and
horizontal mark, you can now use these marks to draw out the
position of the engine. Remove the cowl and get ready to mark out
the engine placement. Use the seam line of the fuselage as
reference, but you can also place a small level on the wing tube
socket in the fuselage make sure everything is level.
While the firewall is set at 0°, the front of the cowl is offset to 2.5°.
So you will need to place an offset line from the centre line on the
firewall. The offset equates to 6mm.
Engine Installation