Alien Aircraft Corp Hornet K-107 Assembly Instructions Manual - Page 17
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68...WITH THE PROPELLER REMOVED...Turn the transmitter on. Place the throttle stick in the low position.
Plug the battery into the speed controller. Check the motor for proper operation and direction of rotation. Follow the
instructions with the speed controller to make any adjustments.
69...Check the servos for proper operation and direction. Adjust the control throws to the values shown on the plan.
Now disconnect the battery and then turn off the transmitter.
70...Place the battery in the nose of the model. Attach the propeller.
71...Check the balance of the model. It should balance at the position shown on the plan. Move the battery forward
or aft to achieve the proper balance. Use velcro to secure the battery in the model in this position. Note: If moving
the battery will not achieve the proper balance, you will have to add weight to the nose or tail. Glue any weight
securely to the model.
72...Your model is now ready to fly. Fully charge the transmitter and airborne battery before attempting to fly the
model. Always range check and do a thorough pre-flight of the model before every flight. Always follow estab-
lished safety guidelines while operating the motor, radio and flying your model.
LIPO BATTERY SAFETY ALERT
Lithium Battery Fires
Lithium batteries are becoming very popular for powering the control and power systems in our models. This is true because of their very high energy den-
sity (amp-hrs/wt. ratio) compared to NiCd's or other batteries. With high energy comes increased risk in their use. The principal risk is FIRE which can
result from improper charging, crash damage, or shorting the batteries. All vendors of these batteries warn their customers of this danger and recommend
extreme caution in their use. In spite of this, many fires have occurred as a result of the use of Lithium Polymer batteries resulting in loss of models, auto-
mobiles, and other property. Homes and garages and workshops have also burned. A lithium battery fire is very hot (several thousand degrees) and is an
excellent initiator for ancillary (resulting) fires. Fire occurs due to contact between Lithium and oxygen in the air. It does not need any other source of igni-
tion, or fuel to start, and burns almost explosively. These batteries must be used in a manner that precludes ancillary fire. The following is recommended:
1. Store, and charge, in a fireproof container; never in your model.
2. Charge in a protected area devoid of combustibles. Always stand watch over the charging process. Never leave the charging process unattende
3. In the event of damage from crashes, etc, carefully remove to a safe place for at least a half hour to observe. Physically damaged cells could erupt into
flame and after sufficient time to ensure safety, should be discarded in accordance with the instructions which came with the batteries. Never attempt to
charge a cell with physical damage, regardless of how slight.
4. Always use chargers designed for the specific purpose, preferably having a fixed setting for your particular pack. Many fires occur in using
selectable/adjustable chargers improperly set. Never attempt to charge Lithium cells with a charger which is not specifically designed for charging Lithium
cells. Never use chargers designed for Nickel Cadmium batteries.
5. Use charging systems that monitor and control the charge state of each cell in the pack. Unbalanced cells can lead to disaster if it permits overcharge of a
single cell in the pack. If the batteries show any sign of swelling, discontinue charging and remove them to a safe place outside as they could erupt into
flames.
6. Most important: NEVER PLUG IN A BATTERY AND LEAVE IT TO CHARGE UNATTENDED OVERNIGHT. Serious fires have resulted from this
practice.
7. Do not attempt to make your own battery packs from individual cells.
These batteries CANNOT be handled and charged casually such as has been the practice for years with other types of batteries. The consequence of this
practice can be very serious resulting in major property damage and/or personal harm.
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