Davis was an experimental
metal worker at Aero
Commander's prototype
facility, and since he
wanted an airplane, but
didn't want to sell his
wife and kids to get one,
he decided to build his
own. He wanted to make it
an easy airplane to
duplicate, so he had to
use his experience to
simplify rather than
complicate. He drew up
plans for the simplest
metal shape that would
enclose two people and
baggage, use a Clark Y
airfoil and get lots of
lift out of a tiny
package.
The Davis fuselage is a
box with the cockpit
section framed by small,
square steel tubing. All
formers, frames and other
skeletal parts are short
pieces bent up on a brake,
then riveted together. A
form block isn't needed. A
fuselage normally has
complicated fittings and
reinforcements to mount
the wings, but the Davis
doesn't. The spar runs
through the middle, and
the fuselage sits on it;
the two are joined by
simple flat sheet
stiffeners.
The swept-back main gear
is steel tubing, a la
Steve Wittman, and the
go-cart-wheel nose gear is
a cross between a
vocational shop project
and a Mooney The nose
roller is mounted on the
end of a piece of tubing
that telescopes into
another longer piece. The
bigger tube is filled with
rubber doughnuts that act
as shock absorbers. No
air, no oil, no springs.
Simplicity.
The wings are as simple as
the gear. Forming ribs,
flanging lightening holes
and getting rid of
distortion are the kinds
of tasks that discourage
would-be homebuilders, but
Leeon has the rib problem
knocked. He uses normal
sandwich-type form blocks
for rib forming but rather
than trying to stretch the
metal around the corner,
he beats it over with a
plastic hammer. Then he
gets rid of the
distortion-causing excess
by pounding the flanges
into flutes filed in the
form blocks. Result:
perfectly straight ribs
every time.
I don't know how long it
took Leeon to make his
butterfly tail work, but
the final solution was
incredibly simple. The
mixing unit that gives
elevator and rudder
motions to the two
surfaces consists of a
couple of U-shaped steel
pieces nested inside each
other, gimbled so that
rudder cables work one and
elevators the other. Works
like a charm.
There are many ways to
find out how an airplane
flies, and I lucked out
with the Davis. I flew it
for 13 hours, and made
almost 100 landings in
nearly every kind of wind
condition with every kind
of load. How did I wangle
all the time? I hopped
passengers at the EAA
annual convention, in
Rockford (Editor's Note
from the year 2001: yeah,
I've been a this game a
LONG time!)
Because Leeon is well
known for his super-simple
approach to building
airplanes, and because
that kind of know-how is
in such demand at the
convention, he spends more
time talking than flying.
He is hard-pressed to give
rides to those who want
them. I was eager and
free. Did I want to help
him? Sure. Had I ever
flown a Davis? No. How
about a Cherokee? Yes.
Okay, get in and go
flying.
That was how I checked out
in the Davis. We went to a
nearby field, and he
turned me loose. He kept
comparing his plane to a
Cherokee, and he was right
except in one respect-it
does everything better.
Taxiing out for takeoff, I
found that all I needed to
steer the nose wheel was
my big toe; the stick was
like a toothbrush in my
hand.
Sitting at the end of the
runway, looking through a
square windshield, I felt
I had forgotten something.
The cockpit feels like any
airplane the size of a
Cessna 150, but as I
glanced out the side
windows I realized what
was missing-the wings.
There aren't any. The
nearly normal-sized
cockpit sits between two
tiny stubs that can hardly
be called wings.
The throttle is mounted
high in the middle of the
squarish panel to clear
the fuel tank; pushing it
in produced the clatter of
65 horses and acceleration
that felt just like a
Cherokee's. I didn't have
to steer it, and when I
tried to lift the nose
wheel at 70 to 75, I
accidentally lifted the
entire airplane. I was
going flying in spite of
myself.
It climbed at 500 to 600
fpm at 85 mph and felt
like a fighter. In level
cruise it squeaked along
at 115 mph indicated and
did everything it could to
bolster the fighter image.
Its controls are
beautiful. It has plenty
of stability but if you
want to bend it around a
corner, it reaches out
with those teeny ailerons
and cranks over into a
bank so effortlessly you'd
think you were in a Pitts.
Sensitive? No, just smooth
and enjoyable.
The V-tail behaves like
the old-fashioned
rudder/stabilizer
combination; there's no
trace of the well-known
"Wichita Wobble" that
plagued the early
Bonanzas.
I played around with
glides up high because I
expected a vertical
glide-path the second I
reduced power, but I
couldn't tell much until I
was back in the pattern.
Leeon had said "... like a
Cherokee," so I got the
carb heat and the power
out and set up an 85-mph
glide. It actually glided.
It wasn't like a
standard-class Cirrus, but
it stayed up at least as
well as a Cherokee and
probably better. I moved
the power in a bit to
catch the runway before it
ran away from me, then
started to flare. I could
have let the plane land
itself. The fat blanket of
air under the wings let it
find the runway leisurely,
the stiff gear bumping
solidly on to the
pavement.
Now I knew I could fly it,
but I wouldn't know the
whole Davis story until I
started stuffing people
into it. Several incidents
are testimony to the
airplane's performance and
forgiving nature: To keep
the airliners out of the
EAA traffic pattern, the
FAA had us turn base
before crossing the runway
that intersected the end
of the one we were using.
It was like landing on the
shank of a T without
touching the top of it.
There really wasn't a
final because base leg was
pointed right at the end
of the runway. We were
also supposed to get down
and off the runway in the
first half because the
last half was being used
for takeoffs. I was
skipping down a right-hand
base and turning final
with my wingtip
practically in the bushes,
but I couldn't get down
short enough because the
Davis wanted to keep on
flying. Eventually, I was
killing power on base and
making a power-off carrier
approach, turning right
into flare and eliminating
final completely. No
matter how big the load,
the Davis did it every
time.
One passenger, a stubby
240-pounder, swore he
couldn't possibly wedge
himself into the cabin.
When he did get in
(barely), he bet we
wouldn't get off the
ground. We weren't over
gross technically, but we
needed a lot more power to
get moving---the wheels
had started sinking into
the grass. We didn't have
STOL performance that
time, but we did get
off---again, "just like a
Cherokee."
On another day, the wind
was getting bouncy but we
were still making carrier
approaches because it was
the only way to get in. It
kept me a lot closer to
the grass than I liked,
and I thought it would be
a problem. No sweat. Even
when I wandered into the
slipstream of a departing
Mustang while only a few
feet off the ground, a few
quick jabs with the stick
told the Davis what I
wanted it to do, and it
did it.
Crosswinds are the Davis'
meat. It sits so close to
the ground that the wind
has a tough time sneaking
under the wingtip. It
doesn't matter, though,
because the tubing gear
will twist (it almost
castors) and you can plunk
down in a crab and let the
gear take care of you.
The Davis DA-2A is an easy
airplane to overlook. But
it shouldn't be. It should
be scrutinized, the wing
attachment fittings should
be examined, the "ruddervator"
mixing unit explained and
the landing gear ought to
be perused. Only by
touching and crawling
under and around can you
really understand what the
Davis is. It's the
much-talked-about, but
almost nonexistent simple
airplane. And, it hasn't
compromised anything
except curvy aesthetics
for this simplicity. It's
an extremely
well-engineered, strong
airframe, and it has
baby-carriage flight
characteristics. If you
sit down and really look
at the Davis, it's not a
bad-looking package after
all. But what the package
contains and what it
offers the homebuilder is
what makes the Davis DA-2A
a downright beautiful
flying machine.