MONTY THE ANSWER MAN ARCHIVE...
FLYING A SWIFT...
PAGE TWO
MONTY LIKES GRASS... (110300)
Subject: Non paved
runways
To: Austin Smith <P51pilot44@cs.com>
Dear Mr.Montague, I've been wondering about the limits about landing Swifts
on non-paved runways. What are your ideas about this? What is the best
landing gear for this? Thanks, Austin Smith
Austin,
I really prefer grass runways. If the surface is smooth, operations are
very similar to any surface. The Adel gear is pretty stiff and transmits
every bump to the airframe. I don't like to over inflate the tires. I
believe the book figure for tire inflation is something like 28 pounds,
I just air them up so they are round with a little flat spot near the
bottom. A PROPERLY inflated ELI gear will ride like a Cadillac compared
to the Model "T" Ford like ride of the Adel, so the ELI would
be better on grass. -- Jim
CLICK HERE TO READ SWIFT
CFI STEVE ROTHSTEIN'S ADVICE ON SWIFT CHECKOUTS... (010302)
ED THE RUDDER MAN...(020202)
Subject: Rudder
From: Jack Gladish <gladish@adams.net>
Hi Ed, Jack Gladish here proud owner of N3321K. My conventional gear time
here doesn't play a roll here in my question, 15000+ in just taildragger,
from Pitts to DC-3's, but something here that I'd like to bring up, I've
been flying 21K that last few days, and I'm using full right rudder, and
even had to drag a brake on takeoff... Landings are fine! I used RW 31,
the winds where 280 to 300 at 10 to 15 mph. This happened when I was raising
the tail, after a little speed was bit up, my rudder came back, but I
used a lot of right rudder during climb. Once at cruise, alls ok, a little
like my Cessna 195, it had a lot of torque, and a long fuselage...My prop
is a 73-59, and I'm running a 0-300D...What do you think ED? I'm almost
sure it's just lack of rudder in a critical phase, but it doesn't hurt
to ask!!!!!!! Thanks Jack Gladish N3321K
Jack,
Hmmmmmmm. The first thing that comes to mind is cable tension on the rudder
cable. Should be 70#. The thing that puzzles me is that it "comes
and goes". That would be explained though since you're having the
problem in a hi-power situation and torque enters in. You wouldn't have
torque at cruise and on landing. If the tension is off or low on the rudder
cable, you would notice it more on takeoff and in a climbing situation
at hi power settings. Another thought that comes to mind is the rudder
bellcrank in the belly being restricted by something. Pull the panel just
aft of the firewall and make sure all is the way it's supposed to be there.
No obstruction or restriction. The next thing I would check is in the
aft fuselage behind the cockpit. Open up the access and look into the
tail to see if all looks normal. If you have the bulkhead for 'carbon
monoxide' installed, it possibly could have come loose and is causing
some restriction. Closing thought, I would start with checking the rudder
cable tension, but go through the remainder of the points I mention just
to make sure. I'm going to cc this to Jim Montage and Steve Wilson and
see what they might add. Cheers...........Ed Lloyd
HERE IS WHAT STEVE HAS TO ADD...(020202)
From: Steve Wilson <SteveWlson@aol.com>
Subject: Re: Rudder
Hi Jack (can we say that?)...
For the sake of brevity I will assume the airplane is rigged right and
you have read and heeded Ed's note.
The Swift is a peculiar animal. I have flown numerous tail draggers, and
the Swift is like none of them! Well, maybe BE-18 has similar traits.
The stock airplane has a straight engine mount, unlike some of the higher
power versions. The airplane has a rather forward CG compared to common
taildraggers of the period. If you have experience with the C-195 you
know that on takeoff, if the cowling moves 1" to the left, the tail
has moved 1' to the right! OTOH, the nose of the Swift moves dramatically
in relation to the tail. Don't get fooled though, where the nose goes,
shortly thereafter goes the tail!
Here is what I teach newcomers to the "stock" Swift on takeoff
procedure. It doesn't matter to me how much time the "student"
has in tailwheel... Line up the airplane in the center of the runway and
let it roll forward a little to center the tailwheel. With brakes off,
start with the wheel (stick) all the way back and bring power up continually
to full power. Assuming you have a steerable tailwheel you will find just
application of rudder in the desired direction will steer the airplane
OK. With non-steerable, just a small amount of brake in the desired direction
will do the same. If you run into a problem with directional control at
this point, reduce power and regroup.
As the airplane accelerates keep an eye on the airspeed. Do not release
back pressure until you see the airspeed is alive. I've seen a lot of
folks start to rotate onto the main gear way too early! One thing to remember
is the elevator authority is much more effective on the Swift than is
the rudder at low speed. Somewhere about 40-45 MPH, you need to come forward
with the stick. Not abruptly, but with authority and continual movement
until the weight is firmly on the main gear, with the tail high. I know
that several forces are at work here... Gyroscopic effect from the prop
wanting to turn 90 degrees to the direction of rotation (which means left),
transition from tailwheel steering to rudder, Left turning tendency from
the straight mount (torque). So, you will need to feed in rudder to counteract
this turning tendency. It may vary from full right rudder and some right
brake with a strong left crosswind, to nearly neutral or maybe a touch
of left rudder in a right crosswind condition. I would not choose a takeoff
with a tailwind component (if at all possible); however, given the choice
of a left or right crosswind, I would opt for one from the right.
Here is the one place I find Many/Most people get into trouble. They do
NOT get the tail up high enough. You have to get the airplane into a negative
angle of attack! There is three degrees of incidence built into the wing,
so the nose will seem very low! Plenty of weight on the main gear! This
allows the rudder to become effective (gets it up in the breeze), and
allows you to "drive" the airplane with the rudder and if necessary
brakes. If you become aware that you are not maintaining directional control,
before you do anything else, start with more forward pressure. You probably
do not have the tail up high enough. More pressure on the man gear will
allow you to use more brake (if needed) and the higher the tail will allow
more rudder authority. May seem hard to do, but a lot of Swifts have been
lost at this point. Either you are a pilot or a passenger. If directional
control is lost, you are a passenger. Use what you have working for you!
An RTO at this point is problematical at best. Not impossible, but tricky.
If you reduce the power abruptly what will happen to the rudder authority?
Where is the airplane going to want to go? It is very easy to go from
limited control, to over-control, to loss of control in the wink of an
eye!
As the airplane accelerates through 60-65 MPH you can release forward
pressure and allow the airplane to transition to a positive angle of attack
and it will liftoff. I find with my airplane, I frequently use full right
rudder during the initial phase of the takeoff roll and more often than
not a little brake to keep the airplane going straight down the runway.
There is a definite difference between the 125 HP and the 145 HP at this
point! You don't have to be a test pilot to notice the difference! I suggest
use of this technique until you are completely familiar with your airplane,
then you can modify the technique to what is comfortable to your style
of takeoff; however, in the initial learning process, you will be a "happy
camper" if you go through the takeoff procedure as I describe it.
This is regardless of wind condition.
To be completely honest, I use a little different technique myself for
a takeoff with no wind/no crosswind; however, when a crosswind is present
or anytime it is gusty, I revert back to this technique. It has served
me well for 38 years...Happy Swifting! Steve Wilson
HIGH AND HOT OPERATIONS...(060302)
Subj: A couple of Swift questions
From: Henry Dittmer <hdittmer@avaya.com
Monty,
I ordered the complete set of Swift books in preparation for buying a
plane. In that literature I could not find performance numbers beyond
those a sea level. Perhaps you could help. I'm interested in the published
take off distance and climb rate for 6000ft at 80 degrees F. The plane
is all original Swift with metal prop and a O-300 engine. Also what is
the typical useful load for this plane? Thanks for any help or reference,
Henry
Henry
There is nothing published along those lines, probably because there is
so much variance between airplanes. At 6,000 feet and 80 degrees a 145
hp Swift might be close to it's service ceiling! If you were going to
operate a Swift at high altitudes and temperatures it would have to be
optimized with the right prop etc. A typical 145 Swift weighs about 1250
lbs, so with the original GW of 1710 lbs, the useful load would be 460
lbs. One person who operates his Swift from a short strip in the mountains
is Don Bartholomew <diamondswift@earthlink.net> he may be able give
you more insight. -- Monty
...HERE IS DON'S REPLY...
Henry,
You are correct that much not is published for Swift performance. What
is, was for a 125 hp plane and was VERY optimistic with the experiences
I had. I live at 5,000 ft and when I came here, my plane had 125 hp and
I operated off a 6,000 ft runway in a valley. I tried the plane both with
an Aeromatic prop and a fixed pitch metal prop. It would get off the ground
in about 2500-3000 ft and would fly in ground effect, but climb was sometimes
less than 50 ft/min. In the summer I always had to find the gliders and
circle with them to get out.
One thing you MUST do with a Swift is to push the nose forward to gain
speed to climb. This is hard to talk yourself into when you are only 10'
above ground, and it is rising. Depending on how the airspeed is working,
you need at least 80 mph and 90 to 95 mph is better. I have flown 145
hp planes here and they are better, but in most cases are still marginal.
Since the 125 and 145 uses a fixed pitch prop, you are down on hp both
from altitude and not making rated rpm. The prop you chose will make a
big difference. A cruse prop will not get off the ground there in summer
so cruse speed doesn't matter. A climb prop will get off the ground and
climb, but you could exceed redline RPM at cruse. You may be happier with
a Swift that has a bigger engine with a constant speed prop, at least
a 150 hp. The prop, although heavier, makes a big difference in performance.
I currently have a 150 Lyc, constant speed prop, and operate off a 2000'
strip at 5,200'. I am careful in the summer since there are obstacles
I must clear 660' off the end of the runway. Talk to Tracy Rhodes. He
operates a 145 hp plane out of Reno (5000'). He can give you a description
of how his plane performs and which prop he has. His email is TRhodes98k@cs.com.
One thing for sure, a 145 hp Swift at 5-6000' will teach you to fly with
understanding and finesse, something the big hp planes don't. If you get
a Swift, be sure to talk to someone that flys one at altitude to find
out the idiosyncrasies before you fly it. If you have anymore questions,
feel free to email or call. Number is 775-782-2992. The computer is on
the fritz right now, so email is unreliable for the next week or so. --
Don
OPEN WINDOWS... (AUG 03)
Subj: Windows open in flight
From: Harry Fenton <Harry.Fenton@unison.ae.ge.com>
Hi Jim, I gave a ride to a friend in the Swift yesterday and he asked
a question I couldn't answer- can the sliding side windows be opened in
flight for better ventilation? -- Harry
Harry
Yes they can. You might find that if both windows are open there may be
some tail buffeting. Years ago, I had a little 85 hp Swift. One very hot
day I decided to take off with both windows down. Upon reaching flying
speed, I lowered the tail to allow the airplane to fly off. It shook so
much, I thought the Beech-Roby prop had thrown part of a blade. I aborted
the takeoff. I pulled on to a taxiway and got out and inspected the prop
and the rest of the airplane. Everything was Ok so I tried the takeoff
again with just one window down -- there was no problem. Years after that,
I took off with both windows down in a 145 hp Swift fully expecting some
tail buffeting. It really wasn't bad at all so I guess "it depends."
I have even heard of flying a Swift with the hatch removed and both windows
down, convertible style. Apparently there was no problem. -- Jim
WINDOW OPEN... (SEPT 03)
From: Todd Warnock <TCWinMIA@aol.com>
Subject: Re: August #4 GTS Internet Update
Todd Warnock here in Florida, Swift N80992. Just a quick note, I fly my
Swift all the time with the window open. It is so hot here in Fl over
the summer you almost have to. I have had no tail buffeting, but lots
of air drown noise in the cockpit.
G LIMITS... (SEPT 03)
Subj: "G" limits
From: Marvin Homsley <Marvin.Homsley@FlightSafety.com>
Monte, I have been looking thru the type certificate data and cannot find
the answer to my question. What are the "G" limits on the Swift
and where did I overlook them ? I am just curious, I have no intention
of testing them. Marvin Homsley
Marvin
The "G" limits are not on the type certificate or anyplace else
that is "official". I have seen several figures over the years.
Read Richard Bach's story "Who Are You Little Swift?" on the
web site if you don't have the 1970 magazine article. Remember the airplane
is now over 50 years old and any figures may not be valid. -- Jim
NO POH...(FEB 04)
Subject: Swift Pilot Operating Handbook
From: Max Spivak
Hello,
My wife and I are seriously considering buying a Swift. I would like to
take a look at a POH. Is there one available online anywhere? Thx, Max
Max,
There is no Pilot Operating Handbook for any CAR Part 4a airplane that
I know of. There is an "Operator's Handbook and Maintenance Manual"
available from the Swift Parts Co in Athens, TN. Most of the flight items
are like advertising claims in that book however are not very realistic.
The specifications given are quite optimistic, like cruising speed 140
mph (for a 125 Swift) and landing speed 48 mph. Today, with all the STC's
and mods, the 1946 figures would be incorrect anyway. Bum a ride in a
Swift and see what it does for yourself. The ambiance of a Swift is not
in the numbers. Many airplanes have similar or better numbers but the
essence of the Swift is the beautiful control response especially the
ailerons.
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