The engineering and manufacturing activities
accomplished during the month of October 1999, as follows:
Major Wing Rework
The structural repairs and rework of the
skin and internal structure are complete. The last steps of the
process have been replacing the nonstandard fasteners that were in the
center section of the spar.
The wing structure is complete and currently
undergoing landing gear retraction testing (minus the doors and hard
plumbing). Gear is working well with no interferences.
The items remaining to be addressed:
1. Replacement of the bushings in
the aileron control horns with bearings.
2. Fitting the aileron and trim tabs.
3. Assembling and fitting the flap
control rods and actuator.
4. Fitting flaps and operational
5. Fitting inner gear doors and actuator.
Wing to Body Fairing
The wing to body fairing is composed of
three sections. The middle section has been subcontracted to our
supplier All Fab. The front section is currently being removed
from the Me 262 airplane at Planes of Fame Museum and will be loaned
to CFII so that we can make a pattern and then build parts. The
aft section is available on the NASM airplane and we are negotiating
with them to loan us this piece. We will then make a pattern and
The mock-up pump has been completed at
Lear-Romec and they are sending it to us from their plant in Ohio, USA.
Once we have this pump we will check for fit and function with the mockup
fuel tanks we already have on site.
Hydraulic System Mockup
The mock-up apparatus plumbing was updated
by replacing small diameter lines with .350 ID lines. The 5 port
distribution valve was added to the mock-up board. The 24v C motor/pump
and distribution were wired to a control board (part of the mock-up
apparatus) to more closely represent the controls in the airplane.
The mock-up was tested by connecting it
to the main landing gear in the production wing. The results were
1. The distribution valve is functioning
2. The landing gear closing and opening
time is approximately 18 seconds. (Note: This time will increase
when the nose gear is integrated to the mains).
Wing Tip Lens Light
The wing tip assembly is being held for
completion of the fiberglass tool to build the light and lens assemblies.
The tool has been started and is currently going through the "lay-up"
Flaps and Slats
The leading edge slat and mid-flap test
parts recently arrived from our supplier, Hill Stamping. An on-site
visual fit up was conducted and minor changes to the assemblies were
noted and changes will be put into the remaining parts for the rest
of the airplanes. Delivery of these revised parts is scheduled
for the end of this month.
Aft Engine Thrust Bulb - "Onion"
The after engine and thrust burst bulb
(referred to as the "onion") was removed from the Jumo engine.
It has been sanded and the major dents/holes sanded and filled.
A new fiberglass supplier has been located and will produce the difficult
assemblies from a two-part mold.
On the production airplanes, these fiberglass
parts will serve as "plugs" to be inserted in the aft engine
opening while the airplane is on the ground.