The T-34 assembly begins by mounting the stabilizers. A few of
the steps in the manual were already done so I suspect that they
increased the pre-assembly after the manual was created. Note
that all the control surfaces are pre-hinged and already have
the control horns mounted.
the stabilizers simply press into position and are held in place
with two 4-40 washers and locknuts. The rudder control horn is
inserted while pressing the vertical stab in place. My aft tail
cone arrived damaged in the box so I requested a new one. It is
a single hallow piece of thin painted plastic that screws into
the rear of the fuselage.
T-34 tail assembly procedure is as good as it gets. No glue, no
cutting, simply a clean beautiful look! So far, I have only used
a Phillips screwdriver and a 1/4" nut driver.
using standard size servos like my JR Sport ST47s, you need to
install the servo plates with medium CA before mounting the servos.
All the hardware that came with the servos was used, including
the grommets, brass eyelets, and screws.
receiver is also installed at this time. I used a Spektrum AR6200
6-channel receiver and mounted it per the manual. The excess servo
leads were secured with a cable tie.
Hobby was quick to send out the replacement tail cone. It simply
screws into place with the supplied hardware. Now my Mentor tail
looks just right!
rudder servo uses the (JRPA215) HD Servo Arm for both rudder and
steerable nosewheel control. Since the control rods are pre-bent,
they simply slip into the pre-mounted plastic rods before attaching
the clevis to the threaded ends.
elevator rod is the longest one at 23.25". I did end up cutting
about 1/4" of the threaded end off because it was a bit too
long for the clevis. The keepers were supplied in the kit and
everything else fit perfectly.
nose gear installation was simple and solid. All the work has
already been done so it was easy to install per the manual. However,
I did have some binding when turning the nose wheel to the right
which required that I elongate the slot in the motor box.
used a small amount of Locktite on the metal screw that secures
the steering rod in the brass connector.
E-flite T-34 motor box is designed to accept either a Power 25
or Power 32 outrunner motor. When using the Power 32 motor, you
need to use the included 3/16" metal standoffs. Note that
the manual calls them 3/8" (5mm) standoffs but it meant 3/16".
I used some Locktite on the 3mm x 15mm socket head screws to keep
them from vibrating loose.
discovered something new upon reading one of the E-tips in the
manual. If you use all E-flite components (e.g. motor and ESC)
in the power system, you can connect the ESC and motors wires
by matching the colors and the motor will spin in the correct
direction for a tractor (or puller) setup. Previously, this was
always hit and miss for me which required testing the direction
of rotation with a live setup. A nice consistent feature from
E-flite 60-amp Pro Brushless ESC was placed per the manual recommendation.
I used some servo tape in the upper corner of the fuselage frame
and a foam wedge on the bottom to secure the ESC. The manual recommends
using the supplied hook and loop tape but I didn't want to apply
it across the inside of the covering material.
I added a few cable ties to keep the motor/ESC wires neat and
the cowl was ready to screw in place using the supplied 3mm x
12mm socket head screws, the alignment was perfect. I used the
supplied red plastic spinner with an APC 12x8 e-prop. Although
the backplate fit perfectly onto the collet adapter, the prop
hole needed to be opened a small amount by using a 1/4" drill
bit. The fit and gap of the red spinner was perfect and I had
no wobble at the tip of the spinner when spinning the prop.
offers a 2.25" Aluminum Spinner (EFLSP225)
as an optional scale upgrade.
and Working Flaps:
The JR ST47 aileron servos were installed using their own grommets,
eyelets, and hardware. I used a JR Sport (JSP98110) 6" servo
extension on each servo lead before routing them through the wing
halves using the installed strings. All the threaded rods were
pre-bent so they simply inserted into the pre-installed control
horns and were secured with the supplied keepers.
flaps are optional on the T-34 Mentor so it comes installed with
the fixed flap linkage and a flap "stay" glued to the
right wing half. I'm using the flaps on my model so I installed
another ST47 servo in the wing bottom after first removing the
covering from the optional servo opening.
second metal threaded Y-rod is provided in the kit so you need
to swap the two clevises over from the fixed linkage. The flap
servo arm hole needed to be opened with a 5/64" (2mm) drill
bit and the two clevises twisted to obtain a 1/4" (6mm) flap
offset when the servo was centered. Again, all the keepers were
the wing panels required only inserting the main aluminum wing
tube and a 5/32" x 1-3/16" aluminum pin near the trailing
edge of the wing. Once the two wing halves are pressed together,
they are held by a nylon strap and two 3x12mm self-tapping screws
going into the pre-drilled pilot holes. At this time, you can
connect the remaining flap linkage.
main landing gear press into the wing panel and are then held
by two nylon straps. Unfortunately, this great looking model does
not have an option for retracts.
final wing assembly is as easy as inserting the tab in the front
of the wing into the slot in the fuselage and then secure it with
two nylon bolts. The wing saddle fit perfectly against the fuselage
and no alignment is required. The Mentor could now stand on its
own three wheels and did not tip back without the battery installed.
battery position shown provides me with the correct CG (4-3/4"
or 120mm) from the leading edge of the wing center when using
active flaps. I used the supplied hook and loop straps as well
as my own industrial strength Velcro to secure the battery. The
Velcro goes underneath the battery pack to keep it from sliding
and the straps act as a "seat belt" to keep the pack
from pulling away.
canopy simply slides into place. It uses two prongs in the front
for alignment and two magnets in the back. Although both dashboards
come equipped with gauge decals, there are no pilots.
set up the control throws per the manual and added 30% exponential
function to all throws except rudder. Suddenly, my T-34 Mentor