RCUniverse.com Review of the Thunder Tiger Mini Titan E325S FBL ARF
Complete package available as ARF or ARF combo
Charger and 3S2200mAh battery included in Combo package.
Direct to swash servo connections.
Great new canopy
Includes the touch controlled GT5.1 3-axis gyro
Belt driven tail with easy access to changing tube and belt
Metal motor mount with easy access to setting proper gear mesh.
Use of Phillips head self-tapping screws in various locations.
Titan E325S FBL is a new version of the already popular Mini Titan from
Thunder Tiger. The E325S is a 450 size flybarless helicopter which
arrives in ARF form and seems to be marketed towards people that
want to open the box and fly without having to worry much about assembling
the helicopter. The Mini Titan is available as an ARF or ARF combo.
ARF arrives almost fully assembled and includes the
helicopter, main and tail blades, the unique touch controlled
GT5.1 3-axis gyro, a 40A ESC, a brushless motor and four micro servos.
The ARF combo adds the 3S2200mAh battery and a wall charger to the
package making this a very complete offering for those who may not have
all the required components to get the Mini Titan in the air.
Even though the Mini Titan is marketed as an ARF, I would classify
this as more towards the ready to fly category as the required assembly
to get the Mini Titan in the air is very minimal and probably due to
shipping constraints. The frame arrives fully assembled and all that
remains to do is to attach the blades and the tail. The Mini Titan does not
ship with an included receiver or transmitter. The GT5.1 3-axis gyro
can be controlled using your favorite radio brand or alternatively it
can directly accept Spektrum satellite receivers.
the biggest things that drew me to this helicopter is the aggresive styling of the new canopy
and the touch controlled GT5.1 3-axis gyro unit so lets put one together, get it in
and see what it can do.
article will look at the ARF combo version of the Mini Titan. The
Helicopter is shipped in a small box which does a good job of
protecting the contents and showcasing the features of the helicopter.
in the box is the semi assembled helicopter, the main blades and tail
components, a battery and wall charger and some assembly tools.
though the box claims it is an ARF, you can see that the Mini Titan
E325S FBL is mostly ready to fly and to get this in the air should not
take much time. Note that with the Combo package, a wall charger and the pictured main flight battery (3S2200mAh LiPo) are included as well.
Tiger Mini Titan E325S
design with preassembled two-piece main grips
3 axis gyro with touch interface
29/35-10H outrunner motor included
40A ESC Included
2200mAh battery and charger included
Carbon Fiber blades
piece molded skids
beginners to experts, the Mini Titan E325 Sport is the ideal machine.
It?s 95% assembled, with a low parts count and 95% compatibility with
all E325 models. The price is surprisingly low for a heli as fully 3D
capable as this ARF is, and the combo includes a LiPo battery and
Main Rotor Blade Length:
Main Rotor Diameter:
29.3 in (745mm)
Tail Rotor Diameter:
6.1 in (156mm)
25.2 in (640mm)
8.2 in (208mm)
25.6 oz (726g)
first look, the plastic frame of the E325S seems identical to the
previous generations of the Mini Titan. I have always liked the Mini
Titan frame as it makes it easy to access your components and is very
easy to work on. What is new is the new single piece skids and the
inclusion of the GT5.1 3-axis gyro. The cyclic servo placement looks to
be identical to the previous generations maintaining the direct to
swash connections and utilizing the ACE DC0915 digital plastic gear
servos. Oddly, the same servo type is utilized on the tail and I
servo specifications are 20.8 - 26.4 oz-in with 0.10 - 0.08 sec/60
degrees at 4.8V and 6.0V respectively. Replacement gear sets are available for these servos with stock number LXAUSJ.
of the best features of the Mini Titan series is the large battery
mount plate. I think Thunder Tiger wants you to mount your battery with
rubber bands as they provide a few in the box and there are ears on the
side of the mount plate to attach them to. I will most likely stick to
using a Velcro strap. You can see the 40A ESC has been attached under
the battery mount and supplied with Deans connector.
nice feature of the Mini Titan E325S is the motor mount. Notice that
the motor mount can easily slide along the CNC cut channel to allow you
to adjust main gear mesh. Out of the box, the motor is not in contact
with the gear and you are required to set the mesh. The auto rotation
gear is placed on top of the main gear, The main shaft is captured on
the bottom of the frame with a collar which will make replacing the
shaft an easy task.
tail assembly has been put together for you and all that remains is to
attach it to the frame. The tail blades are fairly stiff and look
pretty good in white. The belt is driven by a plastic gear which is
easily accessible by removing a few screws. The boom supports have to be
assembled and added to the tail and I was glad to see that Thunder
Tiger did not include a horizontal stabilizer which is essentially
useless in 3D helicopters. The tail pitch control rod is securely held
in place with two guides that are easy to position to keep the rod
set of black carbon fiber blades are included in the box along with
blade holders, a set of Allen wrenches, some Locktite and servo leads
to make the connection to your receiver. If you are wondering what the
transparent plastic pieces are, they are blade spacers and in my
opinion a great feature which makes easy work of attaching the main
blades. The connections from the swash plate to the main grips is direct
and supported by plastic guides. I did notice that these guides when
spooling up do contact the canopy but once spooled up, this is no
longer an issue during flight.
is a plastic L shaped component that is provided which can be used to mount your
receiver on the side of the fuselage. You can also mount your receiver
under the battery tray however making the connections to the GT5.1
3-axis gyro will require longer extensions. With the canopy attached,
the Mini Titan looks menacing and ready for action.
think the GT5.1 3-axis Gyro could benefit from its own review as it
seems to be a great product on its own and to cover all of its features
in this review would be out of scope. I have included links to videos from the manufacturer on how to setup the gyro for reference.
unit is touch controller via a sensor on its side. All inputs are given
by sliding your finger up and down to select an item and double tapping
your finger to commit an action. The first course of action in setting
up the E325S is to of course select which receiver you will be using. I
decided to use my DX18 and two DSM2 satellite receivers. I mounted one
on the side where the receiver is supposed to go and another under the
battery tray and routed the wires accordingly. After that, you need to
enter the receiver sub menu and tell the GT5.1 which setup you want.
You can also place the receivers in bind mode from this sub menu.
you have established communications between your transmitter and
receiver you will need to make sure your swash plate is moving and
correcting in the proper direction. I started by centering the servos
from the servo sub menus at center stick and reversing the appropriate
channels on the gyro to establish correct collective movement of the
the collective has been set, you can reverse channels on your receiver
to obtain proper cyclic movement of the swash plate. Once
your servos are moving in the correct directions, you will need to
double check if the gyro is compensating the cyclic correctly by
tilting the helicopter and making the necessary adjustments to achieve
opposite compensation. You will also need to double check the piro
compensation especially after reversing any servos.
I setup the full positive and negative swash plate movement to achieve
+12/-12 degrees of pitch on the main blades. You will need a suitable
pitch gauge to achieve this. I double checked the tail movement and
correction and left all the other settings at their default settings
which I believe have been programmed by the factory already to match
the Mini Titan.
steps required to setups may seem daunting to a beginner at first but
are actually very easy to perform. Watch the videos to get a better
understanding of what is required or bring out your heli to the field to
have an experience pilot check it out before you attempt your first
flight if you are not comfortable with the procedure. While most of the
icons on the GT5.1 are easy to interpret as to what they control, make
sure you bring out the manual to the field as well as it is always good
to have a reference as to which icon performs what action.
ACE RC Gyro Class Videos Reference
After setting up the helicopter, I could
not wait to go out to the field so I took it out for its maiden
flight in front of my house. I placed the heli on the ground, stepped
back and started to spool up the main blades. I immediately noticed a
sound coming as if something was hitting the canopy. As I mentioned
before, the flybar control rod guides can come in contact with the
canopy as you spool up but once they achieve their center position,
this no longer becomes an issue.
setup my normal mode to 0-85-85-85-85 and it did not take long
to reach the proper head speed for takeoff. Once the heli got
light on its feet, I double checked that the tail was moving in the
correct direction and off we went. I should note even this is a FBL
helicopter which are notoriously known for not liking to stay on the
ground with the blades spooled up, I was able to sit on the ground with the
skids getting light for a good while without any unexpected tip
IDLE1, I set 85-85-85-85-85 throughout so transitioning from
normal to IDLE1 was not even noticeable. In IDLE1, I flew a couple of
basic circuits and could immediately tell the Mini Titan was flying
fairly well. The power that is available at %85 is sufficient to
perform most maneuvers you can think of that do not require massive
amounts of head speed. Flipping the E325S inverted, I was pleased to see
the roll rate and tail authority was solid. I performed a few stall
turns and simple backwards circuits and the tail was holding steady.
setup my IDLE2 as %100 across the board and the transition from IDLE1
to IDLE2 was a quick jump in head speed without any major effect on the yaw. With the higher head speed, I tried a couple of
full throttle climb outs both upright and inverted to see if the rate
of climb was in identical and was pleased to see that the motor did not
really bog down and the heli climbed out straight and almost at the
same rate. The higher head speed allows you to perform tic-tocs in any
orientation that you are capable of without major bogging of the
tried a couple of tumbles and was surprised to see how fast the little
E325S could tumble and roll. I actually had to set the controls on low
rates as the cyclic inputs were a bit too fast to what I am used to. I
flew a couple of hurricanes, funnels and tail slides and did not see a
single instance where the tail gave out or was hunting which told me I
had the heli setup correctly and I could immediately tell I was on my
way to finding my new favorite 450 size helicopter.
did not attempt any autos with the E325S but I am sure an accomplished
pilot can achieve a respectable auto. I kept my flights to 4 minutes
and noticed that the electronics, motor and battery came down warm but
not hot to the touch. After running several batteries, I can say
overall, the E325S is a great little heli.
Tiger Mini Titan E325S FBL
Thunder Tiger Mini Titan E325S FBL is a great little helicopter. Even
though its name is denoted as 'sport' it is capable of performing any
3D maneuver your fingers will allow you to fly. The provided brushless
power system is not lacking for power and the GT5.1 3-axis gyro is easy
to setup and works quite well. The only quirk about using this gyro as mounted on the Mini Titan is
that the placement of the touch sensor on the back makes it a bit hard
to double tap since the rear cyclic servo is very close to the unit
especially if you have big fingers. The new canopy is just awesome
and to me makes the Mini Titan the best looking 450 size helicopter
that is out there.
inclusion of the tail servo that is the same as the cyclic
servos was a little odd but it seems to work great as the tail holding
power was not an issue even though aggressive hurricanes and tail
slides under windy conditions. Lastly most of the components of the
are plastic which is fine as they are durable and inexpensive to
replace. However, I was not super happy with the use of Phillips
head self-tapping screws to fasten several components. Overall,
Thunder Tiger has done a great job with their latest revision of the
Mini Titan and the E325S FBL is definitely a keeper and will remain in
my fleet for the forseeable future.
Great Planes Model Distributors
P.O. Box 9021
Champaign, IL 61826-9021 www.ttamerica.com
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.