J. Perkins Twister Hawk, Assembly & Flight Training Manual

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Available from: www.modelflight.com.au
Twister Hawk
FLIGHT PREPARATION
A. LITHIUM POLYMER FLIGHT BATTERY
Charging lead only
The Lithium polymer (Li-po) ight battery is a high power battery designed to give a ight time of up to 10
minutes per charge. It is supplied in a partially charged state.
As well as a red JST polarised lead (for connection later to the 4-in-1 board), the battery is also tted with a
white 3-pin polarised connector. This is the charge lead.
When you have nished ying for the day, recharge the battery and always leave it in a partially or fully
charged state. Never leave your battery in a discharged state as this may damage the battery and shorten
it's life.
The battery must be recharged when the LBW beacon on the top of the helicopter starts to ash blue, or if
you notice the helicopter is losing power. At this point, land and recharge the battery.
Do not be tempted to run the battery past this stage as you will be over-discharging and the battery may be
damaged.
WARNING!
We recommend that you use only the supplied Twister charger with this battery.
WARNING!
Over-discharging will shorten the life of the battery or damage it. Stop ying immediately the LBW (Low
Battery Warning) beacon starts ashing and recharge the battery.
WARNING!
Do not short circuit—battery may explode!
PLEASE READ THE SAFETY PROCEDURES FOR HANDLING LI-POLY BATTERIES ON PAGE 23 BEFORE
PROCEEDING FURTHER.
B. CHARGING THE FLIGHT BATTERY
The charger is designed to automatically charge the Li-Po battery in about 1 hour from a discharged state.
The 12V DC automatic charger is powered by the 240 Volt power supply illustrated above.
Alternatively, you can use a 12 volt sealed modelling battery to power the DC automatic charger.
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