Velocity
by Budd Davisson, courtesy of
www.airbum.com
Occasionally a situation
comes along in which we
have the opportunity to
form an impression
regarding an airplane but
not Tim to really dig into
its innermost secrets.
Mostly these first
impressions are as
accurate as any developed
after hours of flying
because you have time to
notice foibles and
characteristics but not
enough time to compensate
for them. The first
meeting is when you notice
a person's nose is crooked
or one ear is higher than
the other. After they
become a friend, you don't
notice any of these
things. That's the
situation with the
Velocity and me. We became
very brief acquaintances
but never had the time to
form a real relationship.
Still, I was impressed
enough to think it's
important to pass along
what I learned in that
brief encounter.
The
original mission that
found me in the left seat
of Dan Maier's Velocity
was a photo shoot for
Popular Mechanics. Somehow
the mission got perverted
into a "let's see if you
can do this" type of day.
The St. Augustine's photo
crew (camera plane pilot
Jim Moser, who nearly
froze, formation lead Carl
Pascarell and Eliot Cross,
both of whom really
enjoyed the airplane) did
their best to position the
airplanes as perfectly as
humanly possible. In some
cases, this meant pushing
the edges of
impossibility!
In
situations like this,
there is a sort of pushy
professionalism in which
everyone works toward
perfection but, at the
same time, is really
enjoying meeting the new
airplane. It was in this
spirit that I suddenly
found myself being pushed
toward the Velocity on the
ramp and receiving a
verbal check0out that
included things like "pull
back to go up." Since I
had never been closer to a
Velocity than a wing span,
and that had been at 4,000
feet, I was looking
forward to making our
acquaintance close up.
The
Velocity has been around
long enough that it
shouldn't really be
considered new, since at
this point, the airplane
is coming up on 2 1/2
years old. Still, it does
occupy a rather unusual
niche in the homebuilt
field since it is a full
four-place airplane that
doesn't cheat on the back
seat. Past that, it would
be easy to say the
Velocity is a Rutan clone,
but in reality, when you
change an airplane the
size of a Long EZE to make
it into a 150-200 horse,
four-place airplane, you
really have an entirely
new design.
As I
walked up to the Velocity,
I could see that the glass
smooth finish which I had
seen through the view
finder was actually
smoother than glass. Every
reflection running down
any surface was absolutely
true and free of any form
of distortion or surface
imperfection. Even more
interesting was the fact
that there is not a
straight line on the
fuselage.
While
the surface finish had
been a surprise, the back
set was a real shocker
because it actually IS a
back seat instead of a
crunch space in which part
of the board procedure is
to lock your knew into
your chin and leave them
there. The rear space was
so big it looked empty. so
I threw Popular Mechanic's
Aviation Editor, Tim Cole.
into the bark seat while I
headed for the front. I
then found old age really
has some drawbacks. The
Velocity does nor kneel on
its nose camel style like
Rutan's designs, so
boarding the airplane
meant hoisting your butt
up on a wing strake and
then pivoting on to get
into the cockpit. I have a
shoulder that has long
since gone south with old
age and I had to have
somebody give me a leg up
to get up high enough to
enter the airplane. I
noticed the second
Velocity on the lamp had a
little blade-like step
sticking out of the bottom
of the fuselage, which
made getting into the
airplane easier and, in
try case, possible.
As I
slid down into the left
seat, the surprise
continued. Carl Pascarell
was in the right set and
wasn't encroaching on my
space at all. Both leg and
shoulder room is
absolutely great (for
someone of my stature, the
average 170 lb 5 ft 10 in
FAA pilot.) When, Jim
Moser tried the front seat
out he found his 6 ft 4
inch frame had to assume a
jack-knife position.
That's when designer Dan
Maier pointed out that, in
building the airplane, the
seat back bulkhead is
moved forward and aft to
suit the individual
builder, making it
possible to custom tailor
the airplane to a pilot of
any size.
I
quickly scanned across the
instrument panel to find
most of the important
gauges, as well as getting
used to the throttle and
side-stick. In this case,
the side-stick is actually
in the middle of the
airplane but it was a
side-stick nonetheless. At
first the throttle, which
moved up and down on the
left console, seemed like
it might feel a little bit
weird, but it turned out
to be a very comfortable
mode of operation. The
electric trim toggle
switch was just above that
and forward of both of
these was the speed brake
switch with a red warning
light letting you know
when it was out.
I
reached up and pulled the
canopy down and locked it.
Initially, I felt as if we
were sitting in a mail box
looking out through the
mail slots. After a minute
or so, I realized the
problem wasn't a problem:
the windshield is a good
distance in front of the
pilot, so the overhang
protrudes into the upper
edge of your peripheral
vision. This gives the
illusion of the slot-like
windows. Even, as I was in
the process of firing up
the engine, the
claustrophobic feeling
disappeared.
With
the engine running at a
low idle, it was so smooth
and far away that the only
way you knew it was really
running was a sympathetic
vibration that caused he
canard to vibrate. The
composite structure was so
dead and damped out the
engine sound that
everything was electric
motor smooth.
Taxiing
out to the runway gave me
an opportunity to see how
the brakes worked. Since
the nosewheel is full
castoring, all ground
manoeuvring depends upon
the brakes, which are not
separate pedals. They are
activated when, the rudder
pedal gets toward the
bottom of its travel and
they are extremely
powerful and maybe just a
little bit grabby. I had
to constantly remind
myself to poke gently and
not lean on them because
they caused the nosewheel
to quickly dart from side
to side.
Carl
warned me, before bringing
the power up for takeoff,
to watch for a tendency to
over rotate. He said the
stick forces were fairly
light arid it easy to
unstick the nosewheel and
bring it up a little bit
too high which, when
corrected, could easily
lead into some sort of
pilot induced oscillation
(PIO). This turned out to
be excellent preflight
information.
As I
brought the power up, the
150 horsepower Lycoming
behind me did its best to
push us down the runway at
a decent rate of
acceleration, What I
didn't know was Carl
should have also reminded
me about the Davisson
Canard Syndrome. Just
about every time I fly a
canard airplane, I make
the same mistake: I forget
the rudders are
independent of each other
and it's possible to put
both rudder pedals down at
thc same time, thereby
deploying both rudders at
the same time. Part way
through the takeoff roll
in the Velocity, I
realized I not only had
both rudders deployed but
was dragging brakes as
well. I was in the process
of fighting a left
crosswind and, as soon as
we left the runway, I took
my feet off the rudders in
such a way that the
airplane immediately
offset to the side and I
was lined up with the side
of the runway. A sloppier
takeoff you've never seen.
I starred to turn around
and explain to Tim Cole in
the back seat, who looked
entirely calm, considering
the manner in which we had
left the ground. Then Carl
cut right to the bottom
line by saying,
"Basically, Budd screwed
up." He does have a way
with words.
As per
Carl's comments, the
controls in pitch were
very light and I was aware
of the muscles in my right
hand fighting to keep from
causing any sort or up or
down oscillations of the
nose. The speed built up
and, as we climbed away
from the runway, that
tendency disappeared and I
relaxed my grip on the
stick. I later mentioned
this to Dan Maier and he
said this has been an
on-going problem and they
were working on it even as
I flew the airplane. A
month or so after the
flight, Dan called to tell
me they had made a number
of modifications to the
elevator and canard so
that the pitch control is
now entirely conventional
and any of the bobbing
tendency on takeoff and
landing has totally
disappeared.
Dan had
also warned me before we
even saddled up that the
performance on his
airplane was "leisurely"
because it was only
carrying 150 hp and he
strongly recommends either
180 or 200 horses. Making
the takeoff performance
even more leisurely was
the prop, which was
pitched for flat-out
speed. Also we were
carrying 3/4 fuel and a
decent sized passenger in
the back seat. As we
climbed away from the
field, I could see he was
right because our climb
was in the 600 fpm
category which is far
below that reported by the
other Velocity with its
200 hp engine.
I still had a tendency,
while still climbing to
altitude, to slightly over
control the airplane in
pitch. This was especially
true if I didn't have the
airplane trimmed. The trim
switch started out to be a
pain in the butt because
it was so fast and
powerful. I soon found
that just a quick flip of
the switch would ratchet
trim increments in which
put the airplane in
perfect trim
I
pushed the nose over into
level flight at about 4000
fee and watched as the
airplane struggled to
stabilize its speed which
took a lonng, long time
because of the coarse
pitch of the cruise prop.
It took so long to
stabilize that at one
point. I finally ducked
the nose and dropped off a
hundred feet to make the
airplane build up a little
speed and found it had
already stabilized at its
optimum speed for the
power we were holding, a
shade under 2400 rpm. The
airspeed showed a fairly
consistent 160 mph, which,
when corrected for
altitude and temperature,
was a little over 190 mph.
Nor bad for fixed gear and
the load we were carrying.
In
cruise the airplane feels
much more normal than at
slow speeds. The pitch
control, although
extremely light, wasn't
particularly sensitive and
the roll authority is just
a little on the low side,
which is true of most
canards. It seemed to help
a lot if a reasonable
amount of rudder is used
with the ailerons. The
airplane doesn't have much
adverse yaw, but using
rudder a little first
seemed to increase the
roll rate slightly.
Cruise
stability is totally
acceptable but not overly
rock solid. It seems to be
a little more neutral in
pitch than something like
a long EZ, and once the
nose is displaced, it will
stay there for a time
until it begins to return
to level in what could-
almost be considered an
extraordinarily long
period phugoid.
The
best part about the
airplane in cruise is the
incredible comfort. The
Velocity is at least as
good in this department as
any other general aviation
airplane, homebuilt or
otherwise. In the first
place, the seats are not
as supine as most
airplanes of this type and
the finish of the cockpit
is such that it just does
not look, feel or smell
like a homebuilt. If I had
any complaint at all it
would be that the canopy
eyebrow should be cut back
slightly to increase the
upward visibility.
The
stalls were typical
canard; You'd have the
stick full back and the
nose would be bobbing up
and down while the
airplane mushed forward.
The Velocity did. However,
demonstrate absolutely no
tendency for Dutch roll as
with some of the earlier
canard designs.
On
setting up the stalls, I
found the Velocity doesn't
want to slow down. Even
with the belly board out,
it lust doesn't want to
shed speed and dropping
the nose, even slightly,
immediately sent the speed
needle toward the next
highest batch of numbers.
This comes from the
combination of an airplane
that is as slick as a
raindrop, and a prop pitch
that probably was
contributing next to no
drag with the throttle
back.
Since
we were already slow, I
went ahead and lost
altitude and headed back
toward the airport since I
didn't want to get into a
hassle trying to slow the
airplane down in the
pattern. Knowing the
machine was going to be a
real glider, I purposely
turned final much farther
out than normal. We were
probably at least a mile
out at 700 feet and it
became immediately
apparent I wasn't going to
come even close to the
runway numbers. I had lots
and lots runway, so I
didn't really worry that
much, but I was holding 90
miles per hour and not
coning down.
The
normal landing in most
canard airplanes is your
classic, Navy style
"attitude landing" in
which the airplane is set
up at a specific nose high
attitude and then flown
onto the pound.
Intellectually, I knew
that was the way it was
supposed to be done with
the Velocity, but the
airplane held onto speed
so tenaciously that any
attempt to bring the nose
up resulted in flattening
out the glide slope into a
mini-cross country down
the runway. Eventually we
were close enough to the
runway to make an attempt
at holding the nose up
while the airplane decided
whether it was going to
come down or not.
I had
to fight the urge to
continue flaring, as the
airplane settled onto the
runway. Through out the
entire exercise I was also
fighting the tendency to
over control the airplane
in pitch. This effort
wasn't visible from the
outside, but the muscles
in my right arm were doing
isometrics to hold a
specific attitude. I'm
glad Dan has now worked
that problem out.
The
airplane plopped on and,
in typical canard fashion,
the nose came down almost
immediately despite my
best efforts to hold it
up. Carl commented that
that's the way it's
usually done. I was not at
all satisfied with my
performance in the
airplane, but, time being
what it was, I was not
going to have the
opportunity to go back out
and try again. The landing
wasn't really that bad,
but it would have taken at
least two more for me to
feel comfortable with the
airplane. I would really
like to fly the modified
canard because Dan says
takeoff and landing
characteristics are
markedly improved.
This was written in 1988
and, since then, the
Velocity has been through
several comprehensive
design modifications.
Also, the company has
changed hands at least
once. Therefore, before
making any decisions based
on the foregoing, please
get updated information
from the current kit
manufacturer.
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