a Drill Press to Install Robart Hinge Points in Stick-Built Control Surfaces
In the following sequence, I am building a new rudder
for Gonzo. The original
rudder was sanded extremely thin and
when the covering was shrunk. Attempts to correct the warp using heat just
made the problem worse.
Because the rudder was more than big enough I cut the top section off the original rudder which
is the white "bandaged" area. To this day, I have no idea why I used white
covering, but it always looked like a Band-Aid.
Not too long afterward, I
managed to crack the rudder
trailing edge when I was taking Gonzo to the flying
field. I did not think I could make an airworthy repair to
the existing rudder so I decided to build a new one.
fin and rudder are 3/16" balsa. The hinges,
Hinge Points, require a 3/32" hole to be
inserted into. That leaves only 3/64" on either side of the hinge. A drill
press greatly simplifies this task due to its precision.