Hi Guys;..........Paul since you love Parts pictures,
these should warm the cackles of your heart ;-)

These photos were taken yesterday right before going in
for inspection (QC).

Not one bit worried about the Blade Shanks being strong
enough, It's the composite marriage that worries me :-(

Picture #3 shows the Shell assy. (Housing), rough
machined and being pressed assembled. From here it goes
to the Welder, then for weld void & crack Inspection,
next Heat Treating, AGAIN for weld crack inspection and
FINALLY back to machinist for weight loss :-)

Everything looks pretty good........No surprises.
I Should be assembling it pretty soon.

                              Will keep you posted,
                                      Butch

Looks great Butch. Very simple and bullet proof. Not to worry about
the composite joint. Perry Mick is real good at making carbon blades
as his prop must live at up to 6000 RPM. Never the less we will test the
heck out of it down at Tracy's on the nodding test stand.

Paul Lamar

I think Butch is referring to the carbon-steel problem that
Airbus has.

Those parts look great Butch, looks like this thing is
for real.

--
Perry Mick
Duckt N7XR
http://www.ductedfan.com

Here is another picture of the steel housing and flange Butch sent.


Paul Lamar

We need to make sure that we have a full ply or even possibly two
of glass (BID) over the hub to insulate the carbon from the steel.
I think the most serious corrosion issues have been with aluminum
fasteners, which try to "protect" the carbon and due to the large
surface area disparity, the fasteners go away rapidly.  This same
problem occurs with steel plates riveted with aluminum rivets.
The steel won't corrode much around the rivets, but the rivets sure
go fast in a high corrosion environment.

Bill Freeman
Long EZ builder & pilot
BSME, MSME
EAA Technical Counselor

BTW Bill any word on the Airbus vertical fin?

Paul Lamar
 
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