|Contributed by: Fly RC Magazine | Published: February 2005 | Views: 31396 | Email this Article
review appears courtesy of Fly RC Magazine.
The Super Kraft Rearwin Speedster from Kangke is the perfect
model for someone looking to step up to giant scale flying.
The symmetrical airfoil and moderate wing loading provide
excellent flight characteristics that are well within the
capabilities of most sport pilots. The Speedsters aerobatic
capabilities and classic appearance will also appeal to the
seasoned giant scale pilot.
many aviation buffs, I am very interested in Golden Age
era aircraft. During that period, the design of aircraft
changed dramatically. Gone was the boxy look of the old
biplanes. Speed, reliability and comfort was the order of
the day. One of the beauties from that era was the Rearwin
Founded by Raymond Rearwin in 1928, the Rearwin Airplane
Company designed and built over 400 aircraft before closing
its doors in 1946. The model 6000M Speedster was powered
by an inline inverted Menasco 125 horsepower engine. The
Rearwin Speedster was truly a work of art for its day and
remains very popular among modelers.
Kangke Super Kraft has done an excellent job of capturing
the beauty and appeal of the original in their model of
the Rearwin Speedster.
Manufacturer: Kangke Super Kraft
Type: Standoff Scale ARF
For: Experienced Pilots
Wingspan: 96 in.
Wing Area: 1440 sq. in.
Weight: 270 oz.
Wing loading: 27 oz./sq. ft.
Length: 70 in.
Radio: 4 channels required; flown with JR XP 652
transmitter, JR R600 receiver, 6 servos: Hitec HS-425BB
(throttle) and Hobbico C-70s (2 aileron, 2 elevator, 1
rudder and 1 throttle)
Engine range: 1.8 to 2.4 gas or glow. Engine used:
US 41cc with spring start
Propeller/Spinner: Zinger 18x8, Midwest 2 ¾
top rpm: 6,820
Fuel: 40:1 gas & oil mixture
Onboard battery: Sanyo 1000mAh 6-volt 5-cell pack
The plane is shipped in two boxes: one for the wings,
stab and fin, and the other contains the fuse and
the rest of the parts. Upon first inspection, you
cant help but notice the quality workmanship
and the excellent finish on the Speedster. All of
the parts are individually wrapped in plastic to
protect the UltraCote finish. The hardware package
is good quality and complete with just about everything
you will need. All of the flying surfaces are pre-hinged
and a few drops of PK Industries thin CA will make
for a good strong hinge system.
rear of the fuse contains two pockets, one for
each elevator servo. This design allows for
a perfectly straight run from the servo to the
control horn. It is little details like this
that impress me. It shows that the designer
has taken the time to think things through.
If you do not have a computer radio, youll
need a servo reverser for one side. Take some
extra time to make sure that the massive tail
section is epoxied in straight and securely.
I used PK Industries 30-minute epoxy. Super
Krafts design has two brass pins to help
align and strengthen the rudderpost on the rear
of the vertical fin. This is a big help during
cabin area of the Speedster is massive, and
it seems to swallow up your airborne pack. The
windows and windscreen are pre-formed and require
just a little trim for a perfect fit; and they
do look good when finished. I decided to add
just a little personal touch by using no. 4
button head screws around the windscreen.
The fuselage has two access hatches. A rather large
one on the bottom, which also gives you access to
the landing gear mount, makes it easy to install your
electronic equipment. The hatch on the top of the
fuse is used to access the wing bolts, fuel tank and
the top inside of the cabin. I have to tell you that
the further along you get on this project the more
you appreciate the design of this model.
front end of the Super Kraft Speedster is very
rugged. The firewall is epoxied using triangular
bracing stock and then glassed. Mounting the
US 41 was a simple task. I had to add three-inch
extensions to the stock muffler to exit the
exhaust and cut a hole in the side of the cowl
for the carburetor. The entire engine installation
was rather easy.
I was pleasantly surprised to see the well-designed
and neat installation of the wing struts. They
are adjustable, strong and look great.
With the US 41 engine running well after a short break-in,
we were ready to go. The Speedster handles great on the
ground and the tail wheel steering is very positive. A
few hot runs down the runway and I felt that the Rearwin
Speedster had plenty of power. With a final check of the
controls, it was time to go.
Takeoff- With the nose of the Speedster pointed
into the wind, it quickly picks up speed as you bring
the throttle up. The first thing you notice is that big
tail coming up. Then, with just a little touch of up,
the Speedster is airborne. The climb out is smooth, clean
and straight. After the first turn and downwind leg, I
reduced the power to about seventy percent. No trim was
needed to keep the Speedster straight and level.
The Kangke Speedster is very stable and smooth in flight.
All of the controls are very responsive for a big high-wing
plane. At full throttle, the Speedster is surprisingly
fast. There are no bad habits when you enter a turn: the
plane cruises through the turn like it is on rails. When
I reduced the power to check the stall characteristics,
the Speedster slowed down nicely. The stall is straightforward
and easy to recover.
I have to say I was surprised to see how well the
Kangke Rearwin Speedster maneuvered through aerobatics.
Because of the symmetrical airfoil, rolling the Speedster
requires very little down elevator while inverted
and little altitude is lost during the roll. Loops
were very clean and exiting the loop at about the
same point as the entry was no problem. I then climbed
to get a little more altitude and flipped the Speedster
on its back. It handled very nicely inverted. Most
hi-wingers are not that good at flying inverted, but
the Speedsters wing is fully symmetrical. This
is just a little change from true scale that the designers
have included to make it fly better.
I have to tell you that this plane looks great on final.
It looks so real in the air. As it starts to settles in,
all that is needed is a little power to slow the descent.
With the big 96-inch wing, it is very stable and touchdown
is as real as it gets. The roll out is straight and rather
short. I think that anyone who has ever landed a RC model
before can land this beauty.
Kangkes Super Kraft Rearwin Speedster is one of the
finest models that I have done in the past few years. I average
ten to fifteen planes per year. If you look inside the fuse
and wing, you will appreciate the meticulous construction
of this kit. The high quality, excellent design and the above
average finish make the Rearwin Speedster truly beautiful
are looking to step up to a giant scale gas model for the
first time, this one will make you look like a pro. Bring
this one out to the field, and the crowd will gather quickly.
Nice job, Kangke.
article appears courtesy of Fly RC..
RC Magazine is published by Maplegate Media.
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The comments, observations and conclusions made in this review are solely with respect to the particular item the editor reviewed and may not apply generally to similar products by the manufacturer. We cannot be responsible for any manufacturer defects in workmanship or other deficiencies in products like the one featured in the review.
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