Aerostar Super
700
My years with the great lady
by Greg Arikian
ATP B707 B720B B727 B757 B767 L1011 B747
Greg started flying when 1he was 10 years old and has now flown for
49 years with 29,000 hours under his belt. He was the
TWA Air Line Pilots Ass.
International Division Safety chairman for 2 years.
When I saw my first Aerostar, I didn’t think much of it. After all,
I was looking for a fast, fun, and fantastic twin engine airplane.
The Aerostar looked like a business type aircraft. I started my
search for the perfect twin, there were Aztecs, Twin Commanders,
Dukes, 310s, 340s, 414s, and more. I didn’t see, in any of them
what I really wanted. I started to read articles on light twins,
and noticed the Aerostar was called “the fastest production piston
twin ever manufactured. It turns out Ted Smith, the inventor of the
A20 bomber, Twin Commander, and others, conceived and built the
Aerostar, gaining certification in March of 1968.
Hmm, the more I looked at it, the more I admired the clean lines,
the jet like forward cockpit, and the speed. I love speed, and what
pilot doesn’t, but 260 Knots? I was very sceptical. The more I
read about it, the more I admired this beautiful creation. Then it
happened. The deadly bite of the “I MUST HAVE THIS AIRPLAN”, “I
MUST HAVE THIS AIRPLAN” bug. I was hooked, and if you are a pilot,
who has ever been bitten buy this bug, I pity you. I thought about
Aerostar, I dreamed about Aerostar, My every wakening moments were
filled with Aerostar. I had it bad, and when you have this disease,
there is only one cure. If you’re a pilot, you know, what that is.
The quest was on. I looked at 600s(unpressurized, no turbos)
601Ps(pressurized, with turbos) 602Ps(like the 601P, but updated)
700s (certified in 1983) and the granddaddy of them all the Super
700. The Super 700 is a Machen conversion of a 601P or a 602P to
make it a Super 700. This conversion was extensive and added many
refinements to a 601P, or 602P, not least of which was the increase
to 350HP and square tip props. I decided it had to be the Super 700
(remember, I was bit). If you wish to read more on the history,
just search on the web.
I
found a mostly burned out, Super 700, that no one wanted to buy, so
I bought it, against my mechanics advise. I was very fortunate, in
the fact that I lived only 15 minutes from Danbury (DXR) Airport,
and Master Aviation, owned by Alan Speakmaster, which is considered
by many, the premier Aerostar shop in the country. Alan knew ALL
about Aerostars (it was almost frightening). It took over one and
one half years to finish the project, but after new engines (U2-A)
new radios (Garmin 530/430) new paint and new interior, new boots,
etc. I was ready to rock and roll.
This Aerostar was so beautiful it almost took your breath away.
After checking out, I couldn’t wait to fly it. We decided to fly
from Danbury, Connecticut to Naples, Florida, with a fuel stop
Lumberton, North Carolina. One loads an Aerostar, passengers first
and pilot last. I call this aircraft a PILPOF. Pilot In Last Pilot
Out First. Many look at an Aerostar, and believe it to be too
tight, but once seated, it is quite comfortable, not only for the
pilot but also for the passengers. The six seats are side by side
with a small aisle between them. The second seat on the right is a
swivel seat, and can be turned to face the rear bench, for club
seating. The great thin about an Aerostars cabin, is as you go
towards the back, the roof line hardly decreases at all, so front,
middle and aft passengers have the same head room. Aerostars come
equipped with a writing desk, which I promptly removed. I figured
if you would rather write then enjoy the beautiful scenery; there
must be something wrong with you. The clamshell door is secured by a
single twist lever, and a pressure seal is inflated to maintain a
seal. The visibility is the best of any light twin, and some jets I
have flown. I mostly fly IFR, and had a clearance switch installed,
which allowed one to power the number one Garmin 530 to get a
clearance without starting or powering up the entire electrical
bus. With clearance in hand, I loaded the Garmins for the first
leg.
The Lycoming U2A engines are very easy to start. I did the before
starting checklist which I read from the Garmins. Turned on the
electric fuel supply, throttle cracked a hair, mixture lean, pumps
on, mixture rich, pumps off. Wait a second or two, hit the starter,
and in less than a turn they start. With the engines fires up, I
did the after start checklist, and called for clearance. Taxing an
Aerostar is accomplished by moving an electric switch left or
right. After the first 5 seconds of taxing this way, it became
intuitive and easy. After the runup, and the before takeoff
checklist, it was into position, and hold.
The takeoff technique is to align with the runway centre line and
let it roll a few feet, to assure a track. After receiving takeoff
clearance, I advanced the throttles to 42 inches of manifold. The
Aerostar really wants to go with 700HP, and if not for the great
brakes, it would skip down the runway. I checked the RPM, and
engine instruments, and released the brakes. The rudder becomes
effective quickly, and steering is not a problem. Passing 60 Knots
I relived the pressure on the nose, and at 80 knots we were flying.
The airspeed rapidly increased to 160 knots, which is a nice climb
speed, allowing good visibility over the nose. With only my wife
and me, and full fuel, and a few bags, we grossed out at only 5650
Lbs, well under the 6315 Lbs max gross weight. Oh, didn’t I mention
the useful load on my (admittedly light) Aerostar was 2265 Lbs?
Sorry, (eat your harts out you Barons) I digress, but here we were
climbing out at 2000 FPM, in pressurized comfort, watching the world
go by. The view was spectacular, and we could see New York City now
just 40 miles to the south. We passed 10000 feet and would blow
right by the top of the NY class B. This would have been a great
advantage if we were VFR. Well I was having much too much fun, so I
started thinking about the fuel balance procedures. I flipped on
the autopilot, hooked it up to the Garmin and started to go over the
procedure. Let’s see left engine ON, right engine ON, done. Boy,
that took a lot out of me. The fuel system on an Aerostar is almost
impossible to screw up, although many have managed to do just that.
The fuel tanks are: left and right (wet) wing, and fuselage tank All
three tanks feed into a sort of fuel box located under the fuselage
tank. In normal operation, you just turn the switches to ON and
monitor fuel balance. If one tank is lower than the other, you can
cross feed fuel to its engine from the opposite tank. There is no
cross feed from the fuselage tank. Each engine has a 3 position
fuel switch, OFF, ON and X-FEED. Because the Aerostar has almost a
straight wing fuel can feed faster than the other if the aircraft is
not in trim. That’s it, easy huh?
We
were just passing 20,000 feet and still climbing 1800 FPM. Not
bad. We were told to maintain FL240. The cabin was holding around
8600’ I leaned the engines for 65% power with the JPI, and I then
set the true airspeed indicator to the OAT and read the TAS of 232
Knots. Just for grins I pushed the power to max (limited by the
turbos) and watched the speed go to 261 knots TAS. Wow this baby
really goes. All this, as with everything in life, comes with a
price. The fuel burn in climb was over 40GPH per engine (that’s
80GPR folks) in cruse the flow was 22.5 GPH per engine (that’s
45GPH). The question arises; do you want to go 100 miles on 10
gallons or 200 miles on 20 in an hour? Still, that a lot of gas.
Oh well I’m rich what do I care. (NOT).
At
FL240 she handled just like she was at 4000’ sensitive, but not
overly so. I watched the earth pass under the Garmin, and all too
soon it was time to descend. I was cleared to 11000’ I squeezed off
a few inches of manifold, and lowered the nose to 220Kts, we had a
tail wind and the GS showed over 280 knots. I descended slowly to
take advantage of the wind, and wouldn’t you know ATC asked that I
expedite to 11000’. OK time to try out another new toy. I reached
for the spoiler button, and down we went, over 3500 FPM. I was
cleared for a visual at Lumberton. I started slowing to pattern
speed, and it wasn’t easy, even with the spoilers. The flaps and
gear are hydraulic, the flaps being infinity variable down to 40
degrees. I completed my decent checklist and only had GUMPP to go
on my landing checklist. 140 on down wind more flaps, and 125 on
base, 110 on final with 90 across the fence, and we were there. I
(this time) remembered the nose wheel likes to slam down when the
mains touch, I held it off until I ran out of elevator, and it
gently touched the pavement.
Depending who you talk to the Aerostar is a killer aircraft. It
will turn over on its back in a normal stall, will fall out of the
sky below 150 kts, it will kill you if you lose an engine, and in
all, takes a super man to fly. None of this is true. I have been
flying for almost 50 years in everything from a J3 to a 747, and let
me say; the Aerostar is as honest an aircraft as there is. Oh, you
must pay attention, but then again if you don’t, should you fly at
all? When I got 500 hours in the Aerostar, the insurance company
finally allowed me to give recurrent in it. If you lose an engine
on takeoff, the Aerostar actually goes up, and sometimes depending
on weight, 800 FPM. Not bad for a piston twin. I would rather be
in an Aerostar than any other piston, when things go wrong.
The Aerostar is an aircraft that demands the best of maintenance.
It’s pressurized, has 4 turbo compressors, air conditioning, heating
etc. etc. So operating it wasn’t cheap. One day, and by the way
don’t ever do this if you have an airplane and want to keep it, I
computed my cost per hour to fly this beauty. The numbers almost
gave me a heart attack, $452/Hour, Gulp. Well I finally came to the
realization that I wasn’t really rich, and was forced to sell this
magnificent flying carpet. Even so, I always remember the wonderful
time we had in this, the most beautiful of all piston twins.