Bergen Intrepid Magnum Tazer User manual

This manual is for the Intrepid Magnum Tazer and
Intrepid Magnum Tazer 800.

WARNING!
The radio controlled model helicopter built from this kit is not a toy and is not
meant for children. It is a flying machine capable of causing property damage
and serious bodily harm to both the operator/assembler and/or spectator if not
built and operated correctly and responsibly. Rotating components, especially
the main rotor blades, are an ever-present danger.
Model helicopters operate differently than model cars and airplanes. Helicopters
by their nature are not positively stable, meaning that even if properly assembled
and ad usted, helicopters will not recover from an unwanted flight attitude, nor
will they hold any particular orientation without constant control inputs from the
pilot.
IT IS YOUR EXCLUSIVE RESPONSIBILITY TO PROPERLY BUILD,
MAINTAIN AND OPERATE THIS HELICOPTER. Bergen R/C Helicopters
has spent considerable time making this product reliable and easy to
build, but only the operator can insure that it is safe. Because the
safe operation of this helicopter is beyond the control of the
Manufacturer and distributor, the owner/operator assumes all risk of
use.

Construction Manual
Acknowledgments
Bergen R/C Helicopters wishes to thank our friends and customers for
their continuing support during the development of the Intrepid
Helicopter.
The Instruction Manual and illustrations were completed with the
input of numerous customers and staff. We wish to recognize Gary
Wright, who had been the test pilot and helicopter guru in its early
years. We would also like to recognize Mike DeMetz for his
continuous support and knowledge in electronics and maintenance.
Staff
Chris Bergen; Chief Executive Officer
Larry Bergen; Chief Design Engineer and General Manager
Maryann Pratt; Office Management
Mike Bergen; Programmer, Engineer
Todd Gillespie; Machinist
Greg Alderman; Test Pilot/Designer
Bergen R/C Helicopters LLC
1101 Follett Drive
Cassopolis, MI 49031
Voice: [phone]
Fax: [phone]
Web: www.bergenrc.com
Email: [e-mail]
Introduction

The first of its kind, interchangeable modular engineered helicopter to
accommodate the beginner to a FAI expert…
An idea in 1994 to manufacture an interchangeable, modular helicopter, led to
the research and development in 199 . Focusing on quality, engineering
details, and price, a prototype was produced. After extensive test flights and
fine-tuning, the INTREPID HELICOPTER is now what you see today. The first
of its kind, strength combined with simplicity for easy maintenance and flying.
Although beginners can successfully build and fly their INTREPID, the process
can be made significantly easier with the help of an experienced modeler and
instructor pilot. We recommend that all beginners join the Academy of Model
Aeronautics (AMA). The AMA is a non-profit organization that provides services
for modelers. The AMA can help you locate a model aircraft club in your area
with an instructor pilot (you can also check with your local hobby shop).
Membership benefits include a monthly magazine and liability insurance. Many
flying clubs require an AMA modeler’s license to operate a model on their flying
field. For more information on the AMA contact:
Academy of Model Aeronautics
1 1 East Memorial Drive
Muncie, IN 47302
Phone: [phone]

Consumer Warranty
IMPORTANT! Before building the Intrepid Magnum Tazer Helicopter kit, read and fully
understand the following warranty, and review the entire Construction Manual. By building
and/or flying this helicopter you indicate your acceptance of the following warranty terms
and conditions, and further agree to build and operate this helicopter in safe and responsible
manner.
If you find any term or condition unacceptable, or if you feel that this helicopter is just not
suited to you, you may return it to your place of purchase in NEW and UNUSED condition
within thirty (30) days of the date of purchase for a refund of the purchase price less
shipping and handling. Partially assembled kits, and kits with opened parts packs or missing
parts can not be returned for a refund.
Warranty:
1. Bergen warrants to the first consumer Purchaser that the INTREPID Magnum Tazer
helicopter substantially conforms to its published description when used as intended as a hobby
product, and will be free from defects in materials and workmanship for a period of 90 days after
the date of purchase. Bergen R/C will repair or replace (at his option) any defective part, and
supply any missing part at no charge to the Purchaser within this period. We make no warranty,
express or implied. This warranty does not apply to parts damaged by improper assembly,
modification, abnormal service or handling, or crashes.
2. To take advantage of this warranty, the Purchaser must provide proof of
purchase, and ship any defective part (at Purchaser’s cost) to Bergen R/C
for repair or replacement.
3. It is the responsibility of the Purchaser to properly assemble, maintain and
operate this helicopter in accordance with manufacture’s instructions, AMA
safety codes, local laws and ordinances, and COMMON SENSE. It is also
the responsibility of the Purchaser, when operating this helicopter, never to
operate it in any way, which might endanger persons or property including
the Purchaser. Purchaser is advised to carry appropriate liability insurance
such as that commonly provided to modelers by the AMA.
4. THIS WARRANTY SPECIFICALLY EXCLUDES THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. The selection of this helicopter for a particular
application or use (beyond hobby/entertainment) is the sole responsibility of
the Purchaser. Any advice supplied by any representative of Bergen R/C
pertaining to any particular application is given freely as an opinion and is
not meant to bind Bergen R/C or in any other way modify this warranty.
1. Not withstanding the paragraph above, this warranty is in addition to
whatever implied warranties may be granted to the Purchaser by law. To

the extent permitted by law, all implied warranties, including the warranties
of merchantability and fitness for a particular purpose are limited to a
period of (1) year from the date of purchase. Some states do not allow
limitations on how long an implied warranty last, so the above limitation
may not apply.
2. This warranty shall be the sole and exclusive remedy available to the
Purchaser. Correction of defects, in the manner and for the period of time
specified above, shall constitute complete fulfillment of all liabilities and
responsibilities of Bergen R/C to the Purchaser, and shall constitute full
satisfaction of all claims, whether based on contract, negligence, strict
liability or otherwise. Bergen R/C shall not be liable for any cost or
expenses incurred in; the replacement of any effective or non-conforming
parts, and IN NO EVENT SHALL BERGEN R/C BE LIABLE FOR
INCIDENTAL OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
DUE TO THE USE OR INABILITY TO USE THIS PRODUCT. Bergen
R/C shall not be liable, or in any way responsible, for any damages related
to modifications, repairs, attempted repairs, or crashes. IN NO EVENT
SHALL BERGEN R/C’s OBLIGATIONS TO THE PURCHASER EXCEED
THE ORIGINAL PURCHASE PRICE PAID BY THE PURCHASER.
3. Some states do not allow exclusion of incidental or consequential damages,
so the above exclusion may not apply. This warranty gives the Purchaser
specific legal rights. The Purchaser may also have other rights, which vary,
from state to state.
4. No modification or amendment to this warranty will be effective unless
reduced to writing and signed by an authorized representative of Bergen
R/C Management.
If you do not understand any aspect of this warranty, you may contact
Bergen R/C Helicopters for clarification. IF YOU DO NOT AGREE WITH ANY ASPECT OF
THIS WARRANTY, RETURN THE UNASSEMBLED HELICOPTER TO YOUR
MANUFACTURER FOR A REFUND.
Bergen R/C Helicopters believes that information contained within its published materials is
accurate as of the date of publication, and is not responsible for inadvertent errors or
omissions. Bergen R/C reserves the right to make changes and improvements in its products
without notice.
If you do not understand any aspect of this warranty, you may contact
Bergen R/C Helicopters for clarification. IF YOU DO NOT AGREE WITH ANY ASPECT OF THIS
WARRANTY, RETURN THE UNASSEMBLED HELICOPTER TO YOUR MANUFACTURER FOR A
REFUND.
Bergen R/C Helicopters believes that information contained within its published materials is accurate
as of the date of publication, and is not responsible for inadvertent errors or omissions. Bergen
reserves the right to make changes and improvements in its products without notice.
Chris and Larry Bergen
Bergen R/C Helicopters

The Bergen Intrepid Magnum Tazer
The Bergen Intrepid Magnum TazerThe Bergen Intrepid Magnum Tazer
The Bergen Intrepid Magnum Tazer
Welcome!!
Welcome!!Welcome!!
Welcome!!
You have just purchased the latest in the line of Intrepid Helicopters, And
AndAnd
And
our first fora into E-Power.
First off, Thank You’s
Thank You’sThank You’s
Thank You’s are in order. We had to be pushed into this arena of E-
Power, and those responsible are Larr Chapman, Darr l Spra berr , but
most of all Greg Alderman
Greg AldermanGreg Alderman
Greg Alderman.
Greg is one of those rare people who can envision a future, and he envisioned
the future of The Intrepid going Electric. Greg also had a partner in this
vision, Clint Akins from Flightpower Ltd. Clint is the knowledge behind
motor setup, gearing, and of course all things batteries. He is a tireless
person who takes whatever time is needed to allow us electric neoph tes to
catch up.
The Magnum Helicopter is based on our Intrepid 60 mechanics, with
improvements added over time, upgrading to handle the additional power of
the .91 size nitros and G26 gassers and the strains placed on airframes and
rotor s stems from the advent of 3D st le of flight.
The Tazer is the culmination of all of that PLUS
PLUSPLUS
PLUS the addition of high voltage
Li-Po’s and Electric motors capable of tremendous power.
With that comes some additional Warnings. Read all instructions that come
with an Li-Po batteries, especiall the ones concerning charging, usage, and
storage of these batteries. Fires have resulted from the misuse/abuse of
these high voltage devices, burning homes, vehicles, and models.
Electric motors b their ver nature react instantaneousl to power,
meaning, if ou appl power to the motor it WILL
WILLWILL
WILL spin our rotors. If ou are
within the arc of the rotors when this happens, it will hit ou, FAST and
HARD. It also WILL NOT STOP until ou remove the power. Read and
understand the instructions that come with our ESC to prevent this from
occurring.
As with an helicopter purchased from Bergen R/C Helicopters
Bergen R/C HelicoptersBergen R/C Helicopters
Bergen R/C Helicopters, if ou have
questions please do NOT hesitate to ask. You can find us on the Internet at
http://helifreak.com/, http://bergenrc.com forum, or at our email
[e-mail]. Of course ou are alwa s welcome to call and talk
to me at 269-445-2060.

With this kit ou will need some additional items. Radio gear, motor, esc,
batteries, and main blades. Ancillaries include electrical connectors,
shrink wrap, Velcro.
Radio gear includes Transmitter, receiver, servos, g ro, and Rx batter and
switch. This heli is designed to be able to use the latest in high speed and
power servos such as the 8717 from JR. With these high power servos comes
the need for a LOT of batter power to keep them going and prevent
“brownout” to the Rx. Duralite offers a High Current s stem specificall
designed to prevent this. http://duralitebatteries.com/ .
We have tested a number of motors and ESC’s, and offer different gearing
setups for these motors. If ou don’t see our favorite motor, contact us
with its specifics such as the KV rating and what batteries and headspeeds
ou want to run. Ver possibl we can come up with a gearing solution for
ou.
Main blades are not included as there are man ver good blades on the
market and we would not want to offend ou with OUR choice of favorite
blade!! ☺ With the boom included in the Magnum Tazer kit, ou can run up to a
720mm blade. If ou have purchased the Tazer 800 kit, then ou can run 800
to 810mm blades. In either case, ou will need a blade with a 14mm root and a
4mm bolt hole. I have been running the TST 690 and 710 blades from V-Blades
and find them ver responsive and quieter than the “smooth” blade. For the
Tazer 800, we are using NHP 800mm blades for duration, or 810mm V-Blades
for weight lifting.
Smaller, but no less important items that ou will need are electrical
connectors such as the polarized ones from Deans for batter to ESC,
http://www.wsdeans.com/ and bullet connectors for ESC to motor. Shrink
wrap is good to have to cover soldered joints, and Velcro is used
throughout to hold down radio gear and batteries. http://velt e.com/ .
Building this kit should not be difficult, but we have NOT designed it for the
beginner to R/C Helicopters. We do assume SOME knowledge in building
practices. All screws that are installed into metal pieces HAVE to be
secured with BLUE loctite. There are exceptions where we recommend RED
loctite, and will note those in the proceeding manual. But again, an
questions that ou ma have, please don’t hesitate to call us.
All pics in this manual are linked to a file with larger pics. Just hold the
ctrl ke and click on them to bring up the larger pic.

You’re kit starts out as a box of parts. You will also find some paperwork,
including an inventor list and warrant registration. Complete the
inventor FIRST, send us back the final sheet signed signif ing that ou have
received ever thing. If ou find something missing, complete the inventor ,
THEN call us for an thing ou need.
A preview of what ou’ll end up with!!

It’s helpful to have all our radio gear hand while building our Tazer,
especiall the servos, since the are, in some cases, installed into the frames
BEFORE putting the frames together. This does not mean ou CAN’T do it
after, it’s just easier. Obviousl , faster servos will make our model feel
faster and more responsive, but matched servos are NOT necessar in this
NON-CCPM machine.
Let’s get started in Bag 1.
Slide the aluminum tubes through the plastic crossovers, using heat from a
hairdr er or monokote gun to loosen up the plastic. It can take A LOT of
heat to get them to slide easil , repeat the heating process as necessar .
Install the end plugs, tapping them into place with a soft mallet. (Or old
Rawhide hammer☺) The crossovers are angled, ou have the choice of
leaning them forward or aft as shown here.

Using the skid bars from Bag 2, center them on the top of the plastic
crossovers and drill a 1/8
th
” hole, 2 holes in each crossover. To help
prevent the “squats” in the future, ou can also drill a hole in the center
and put an additional countersunk bolt in this location.
Building up the frames starts with Bag 2 and assembling the batter tra s.
Both batter tra s use a ¼” square metal bar that is attached with 3X8
FHCS (Flat Head Cap Screws). The plates are countersunk for the heads of
the screws. Use blue loctite. The lower frames are assembled using the 2
skid bars placed into the slots at the bottom of the frames and 4 ea 3X8
FHCS.

This is how all our parts should look at this point.
The front batter tra is installed using 2 ea 3X8 SHCS in the rear batter
tra spacer onl , and the same with the lower tra , 2 ea 3x8 SHCS in the rear
onl .
Using the short front canop standoffs (16mm) and the 12mm setscrews,
install the setscrew into the front batter tra spacer, securing it with
loctite.

Install the canop mount, holding the setscrew with our driver to prevent
it from turning, then tighten securel using the crosshole.
Looking at the canop mount, ou will see one side is flat; the other side has
the hole countersunk slightl to aid in installing the canop thumbscrew.
This countersunk side should be installed outward.
Assemble the batter restraints next, using 4 ea 3X30 SHCS, 4 ea frame
spacers, and 2 ea 3M locknuts.
The lower bolt for the batter restraints go into the lower tra front tra
spacer, and a locknut secures the upper bolt. Repeat for other side.
Depending on how ou plan to mount our batteries, ou ma use washers in
place of the frame spacers, or nothing at all.

Here’s where we are now.
Install our favorite switch into the switch plate provided. Make sure it is
centered for proper on and off operation.
Locate our elevator servo and install the rubber grommets that come with
it. In bag 9, locate 2 ea plastic servo mount tabs.

Press the servo mount tabs into the rubber grommets from the bottom,
putting the long leg of the tab into the grommet. Install the servo from
inside the frames, with the output spline to the rear. If using JR servos, ou
can use the screws that came with the servo, threading them into the plastic
servo mount tab.
Alternativel , or if using Futaba servos, ou can use 2.5X10 SHCS and 2.5
washers, available from us separatel when needed. The Plastic servo
mount tabs are used INSTEAD of the brass e elets, preventing over
compressing of the rubber grommets. There is no need to over torque these
screws, it is alwa s possible to strip the plastic tabs…
Set our framework onto the landing gear, securing with 4 ea 3X18 SHCS
and 4 ea 3M locknuts. If ou need to reposition the plastic crossovers, heat
them up with the hairdr er.

From Bag 3, The motor mount plate shown is for the Plettenburg 370, our
motor mount ma differ if using a different motor such as the Neu Motor, or
an Actro. For a list of suggested motors, check out the Bergen Forum.
Bolt the motor to the plate with the supplied bolts whether the are 4mm in
this case or 3mm for the other motors. Install the proper pinion for our
particular setup, keeping the pinion as low as possible without hitting the
bolts securing the motor to the plate. If the motor shaft has a flat, ensure
that one of the setscrews is seated on the flat. If our motor does not have
a flat, ou ma want to consider grinding one on ourself.
Install the motor and plate into the frames using 4 ea 3X10 SHCS and 231B
special washers, used for extra holding power. Do not loctite these just
et. It is suggested to orient the motor so the wires point out the rear.

The pinion pulle shaft is supported top and bottom b high-speed bearings,
and flats are located on the shaft for pulle and pinion placement. There
are also 3 collars with setscrews to secure the shaft at the proper height.
Your pulle ma differ, depending on our motor choice.
Orient the shaft so that the long end is to the top. Install the pinion onto
the shaft, setting the setscrew into the flat on the shaft. Install the large
flanged pulle from the bottom of the shaft, again setting one of the
setscrews into the flat. Ver important here to use loctite on these
setscrews.
On top of the pinion, install one of the collars, loctiting and tightening the
setscrews. Install the bearing block onto the shaft with the bearing side
facing awa from the pinion. Install another of the collars above the
bearing, but do not loctite it at this time.

Install the shaft into the bearing in the pulle plate; noting the bearing is on
the topside of the plate. Install the third collar with 3X3 setscrews, not
loctiting it at this time. Place the whole ass into the frames, forward of the
motor mount plate, using 4 ea 3X10 SHCS and 4 ea 231B special washers.
Leave the ass loose in the frames for now.
Place the drive belt over the pulle s at this time, but do NOT set the tension
just et.
Locate the upper frames bag 4, which include the elevator oke, rudder
servo mount, and a hardware bag. In the hardware bag, find 4 ea flanged
bearings…

Install 2 ea bearings into ea upper side frame. You’re going to make a right
and a left frame with the flange of the bearings on the insides of the frames.
A suggestion is to CA the bearings into the G10 frames to help ensure a long
lasting, slop free s stem.
Gather our collective servo; with grommets installed, and install 2 more of
the plastic servo mount tabs from the rear of the servo.
Install the collective servo in the left hand frame with the spline to the
front of the heli, using either the JR screws or 2.5mm SHCS. In the
hardware bag, locate 2 ea collective axles, and place them into the flanged
bearings.