Position the engine on the mounting rails. If
need be, make a supplemental mounting plate
if the engine tabs do not completely span the
gap between the rails.
Confirm that the engine to pipe clearance is set
at manufacturers specifications, drill and bolt
the engine to the rails.
Check the angle of the engine and make sure it
follows the slope of the exhaust pipe. You may
need small shims under the front tab to
achieve the appropriate angle.
Raise the pipe, check to make sure it is
centered on the engine exhaust cone, and
permanently attach the tabs to the triangular
plates.
Repeats steps for other engine.
On the prototype, the engine valves and fuel
pump are located on either side of the fuel tank
compartment, in the center section adjacent to
the main wheel when retracted, underneath the
fuse side. See photos on the following page.
Make sure to tape all extensions securely.
On the prototype, the ECUs were attached with
Velcro to the main center tank for ease of
access. See photos in the fuel system section.
Run wiring, fuel and gas lines to these
positions.
Insert intakes temporarily to make sure there
is adequate clearance for tubing and wiring.
Leave off the engine covers for now to avoid
cracking them as you complete construction.
FB Su-27
Page 14
