E-flite UMX ASK-21 BNF - Manual (Page 11)

11
EN
Hi-Start Launch (continued)
Do not attempt to fl y or operate your ASK-21 any
longer than 25 minutes on a battery.
1. Choose an anchor spot in firm soil and drive
the stake at an approximate 45 degree angle to
your chosen launch path (See image A).
2. Slide the rubber loop through the open section
on the loop end of the stake. Pull on the
assembly to ensure it is securely attached to
the stake, and the stake is secure in
the ground.
3. Unroll the assembly downwind from the stake,
ensuring there are no tangles or knots. Once
your assembly is completely laid out (but not
stretched), slowly walk away from the stake,
stretching the rubber.
4. Walk approximately 25 paces and attach the
string loop to the hi-start hook on the bottom
of your airplane. Keep a firm grasp on your
launch assembly and your aircraft. Ensure your
transmitter and aircraft are powered on and
bound together.
5. Toss the aircraft into the wind at a 30
degree upward angle (See Image B). During
the launch, it may be necessary to use the
transmitter to control the aircraft’s swift
movement. Keep in mind that the included
launch assembly will unwind to approximately
120 feet (36 m) and will stretch an additional
75 to 100 feet (23 to 30 m).
Stretch length for your launch assembly is based on
normal wind conditions of about 5 mph (8 kph).
Increase or decrease how far you stretch your
launch assembly for the wind conditions. The
windier it is, the less you should stretch the launch
system. The calmer it is, the further you can stretch
it. Do not stretch further than 35 paces.
Hi-Start Precautionary Guidelines
• Make sure the stake is securely anchored. Check
throughout the day to make sure the stake is
not loose. Reposition the stake if necessary to
account for changing wind conditions.
• During the launch, make sure there is no one
between you and the anchor stake.
• Do not over-stretch the rubber. Doing so can
overstress the airplane, causing wing failure.
• Periodically check all knots. If the rubber or string
shows wear, replace the assembly.
Maintenance and Storage
Extreme and/or prolonged heat decreases the life of
rubber cord.
Store the assembly in a cool, dry place, loosely
wound on a spool. Avoid leaving the assembly in
an automobile. Preserve the rubber by applying a
light dusting of talcum or baby powder. The powder
decreases ground friction during use and adhesion
during storage.
45 Ы
45 Ы
Wind
30 Û
A
B
Wind Hi-Start
Stake