canopy design which leaves little room in the fuselage for
canopy attachment, not strong enough, which tends to pop
off in flight too frequently
Model has a pretty large offering in the two-meter-range
foam gliders. They vary in size and complexity, with some packed
with functionality's such as a retractable motor mount or air
brakes. The ASW28 is at the other end of the spectrum: it is
designed with simplicity in mind. It is made light, with the
standard control surfaces (aileron, rudder, elevator) and no
other complication. The only "extra" feature is one we are now
used to see on gliders of that size: the motor mounted in the
nose, which allows the glider to be self sufficient to climb
to thermal altitude - no need to carry a cumbersome bungy to
ST Model chose to reproduce the Schleicher ASW28, a single seater
standard class glider capable of glide ratio up to 45. The full
scale ASW28 exists in an 18 meter class variant mounted with
an sustainer electric engine. That is where the comparison stops
with the model version, as the electric motor of the ASW28 by
ST Model does more than sustaining the altitude: it
can perfectly bring the model to thermaling height after a hand-launch.
Catch more thermals and soar endlessly
with the 78.7" span ASW-28 Brushless EP RR from ST Model!
Features an outrunner brushless motor, brushless ESC
and micro servos, as well as lightweight and tough EPO
foam construction and an easy-to-assemble two-piece
sq in (21 sq dm)
oz/sq ft (25 g/sq dm)
1200mAh LiPo battery pack
First Look and setting
is very little to do to get the model ready for its first
flight. All equipment such as servos, linkage, ESC, motor
are factory installed. The user only has to apply the decals,
plug in the wings and stabilizer, and program the radio.
All the control horns were properly glued in place, and no
play could be seen on any of the control surfaces, which is
a really good sign. The motor mount is most likely attached
before the two fuselage halves are glued together, so better
be careful not to damage it. Replacing the power unit could
turn out to be a challenging task.
The canopy is large and the instrument panel decal is already
The winglets and the wings are one single molded piece,
which is a great weight and cost saving feature. They
really add to the look of the glider. Let's just hope they
are stronger than they look.
Used for the review
light 6 channels R6106HFC really works well
with this class of gliders
used the recommended battery: ElectriFly LiPo 2S 1200mAh
ESC comes with a different connector that the one delivered
on the recommended battery. So an adapter exists, and
can be ordered separately
launch: We tried the ST model ASW28
in many different wind conditions, and the takeoff has been
very easy in all but one situation: the glider really doesn't
like strong wind. The manual is very conservative with a limit
of 6mph maximum, which is really a little breeze. The takeoff
and flight in this type of conditions is still perfectly enjoyable
and safe. If the wind gets too strong though, the takeoff becomes
very difficult with the glider being pushed around nearly uncontrollably.
The plane is feather-light so that is not surprise that it behaves
this way. On normal wind condition, a light toss is all it takes
to get the plane airborne, and it goes straight from there.
climb rate is what you would expect on a 2S glider of that size.
The plane hold a 30ish degree ascent and it is very easy to
airframe surprises by its performance. The glider very light
wing loading makes it a great thermal catcher. The glider
clearly identifies thermal by raising or dropping a wing,
and it is most time just a matter of adding rudder input and
opposite aileron to enter back into the ascending air. The
glider spirals with ease with the correctly sized rudder and
well recommended throws. We didn't feel the need to adjust
any of the throws after the first flight.
The glide ratio and the little power consumption makes flight
up to 20-30 minutes very common, depending the flying style
of the pilot. The ASW28 is not an aerobatic glider, and the
roll will take a lot of rudder and elevator work to pass correctly.
The unpowered loop will pass very easily as long as the diameter
is kept tight. If the diameter is too large, the speed will
not be sufficient and the glider will stall at the top. The
inverted flight is easier and more efficient than one would
One word of caution with the canopy. More than a few times,
we had the canopy detaching in flight, especially on takeoff.
We had to use a piece of tape to keep it in place (which explains
the unsightly piece of red tape on the pictures)
Landing: The ASW28 should only land on grass, as there is no
protection against wear from concrete runway. The landing
approach is simple, but it may take a few trials at first,
as on a day with no wind, the ground effect could keep the
glider flying over a long distance just above the grass. Do
not hesitate to slow down the ASW28 by pulling gently on the
elevator, before the final touchdown.
ASW28 is a very well balanced glider, capable of efficient thermaling
thanks to a very light weight. The glider is at ease in no to
low wind condition, and will satisfy the thermal-chaser pilots
with long and relaxing flight. The model has no bad behavior,
and, under good supervision, may well be used as a first glider.
ST model came up with a very well-priced glider and there
is a good chance that we see more of the ASW28 flying on our
local fields pretty soon!
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.