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Flying Tips and Repairs (continued)

Towing 

Towing is only recommended for advanced pilots. While towing, be sure to 
fl y in a large, open space. Also be sure that you have two pilots, one for the 
sailplane, and one for the towplane.

This sailplane is designed to be towed from a smooth runway by a sport plane 
(300 watt or greater), such as the E-fl ite

®

 Apprentice

®

 S. A tow line (approxi-

mately 40 feet (12.2 m) long) is available separately (PKZ6623).

1.   Position both aircraft near each other on the runway, facing into the wind.

2.   Tie the tow line to the rear wing mount posts on an Apprentice S, or at the 

trailing edge of the wing on the towplane fuselage. Insert the loop of the 
other end of the tow line to the release mechanism under the nose of the 
Ka-8 (see Tow Release Installation section).

3.   Space the aircraft apart so there is no slack in the tow line. If there is slack, 

it can result in damage to one or both of the aircraft.

4.   Ensure that the tow line is resting above the towplane’s horizontal tail so 

the towplane can pull the sailplane into the air safely.

5.   Quickly apply power to the towplane once both pilots are ready for takeoff.

6.   Keep the towplane on the ground until the sailplane is 2–3 ft (0.9–1.2 m) 

above the towplane.

7.   Slowly apply elevator to lift the towplane off of the ground. Be sure to 

keep the towplane under the sailplane until you have reached your release 
altitude.

Tips for Towing

•   Continually communicate with the pilot of the towplane and make sure 

they are aware when you are having diffi culty, or are releasing the tow line.

•  Ensure that you keep the sailplane’s wings level at all times. You should not 

try to turn the sailplane, but rather allow the tow plane to drag the sailplane 
around turns.

•   Avoid slack in the line while fl ying. Slack can cause the tow plane to 

abruptly pull the sailplane in unexpected directions. This can cause numer-
ous problems and could result in a crash of one or both aircraft.

•  The tow release location makes the Ka-8 naturally rise behind the tow-

plane without use of the elevator. Down elevator accelerates the sailplane 
and makes undesirable slack in the tow line.

•  Make only wide sweeping turns. Tight turns will result in the sailplane 

becoming unstable.

If a problem occurs, the pilot of the sailplane should release the tow line from 
the nose of his sailplane so that both aircraft can be safely landed.

NOTICE:

 Crash damage is not covered under warranty.

If there is a break in the tow line, tie the ends together securely or replace the 
line when needed.

Wind

40 ft 

(12.2 m)

Recommended Aircraft

Alignment for Takeoff

Recommended Aircraft Towing Positions When Flying

40 ft (12.2 m)

12

Summary of Contents for Ka-8

Page 1: ...Ka 8 Instruction Manual Bedienungsanleitung Manuel d utilisation Manuale di Istruzioni...

Page 2: ...any optional support equipment chargers rechargeable battery packs etc Always keep all chemicals small parts and anything electrical out of the reach of children Always avoid water exposure to all equ...

Page 3: ...ion 5 Voltage Regulator and Receiver Arming 6 Wing Assembly and Installation 7 Horizontal Tail Installation 8 Clevis Installation 8 Control Horn and Servo Arm Settings 8 Decal Installation 9 Pre ight...

Page 4: ...make sure it is not damaged e g swollen bent broken or punctured 2 Insert the charger into the appropriate power supply 12V accessory outlet 3 Connect the balancing lead of the battery to the charger...

Page 5: ...and clips 11 The receiver should retain the binding instructions received from the transmitter until another binding is done If you encounter problems follow the binding instructions and refer to the...

Page 6: ...6V Flashing Recommend charging before ying Battery is between 6 6 and 7 6V No LED connected battery DO NOT FLY BEFORE CHARGING Battery is below 6 6V Monitor your aircraft battery s voltage before and...

Page 7: ...er 3 Connect the aileron servos to the aileron Y harness The left and right servos can be connected to either side of the Y harness Insert the spoiler connector in the throttle port of the receiver Ti...

Page 8: ...ge to change the length of the linkage between the servo arm and the control horn Pull the tube from the clevis to the linkage Carefully spread the clevis then insert the clevis pin into the desired h...

Page 9: ...ption A N15343 represents an aircraft registered in the U S while Option B D54332 represents an aircraft registered in Germany Application 1 Ensure the fuselage is clean 2 Lift a decal from a sheet an...

Page 10: ...its link to the transmitter the failsafe will drive the servos to these settings made at binding Control Direction Test Transmitter Command Aircraft Reaction E l e v a t o r Up Elevator Command Down...

Page 11: ...t stretched slowly walk away from the stake stretching the rubber 4 Walk approximately 120 150 ft 36 46 m and attach the string loop to the Hi Start hook on the bottom of your airplane Keep a rm grasp...

Page 12: ...towplane 7 Slowly apply elevator to lift the towplane off of the ground Be sure to keep the towplane under the sailplane until you have reached your release altitude Tips for Towing Continually commun...

Page 13: ...nt side of the hill The backside of the hill has dangerous turbulence and will cause a crash with most sailplanes Flying on the backside of the hill is possible with DS dynamic soaring gliders but thi...

Page 14: ...nsert the connector in an open channel of the receiver GEAR is recommended for most transmitters When needed disassemble in reverse order Tow Line Connection 1 Pull back the lever F on the side of the...

Page 15: ...tandards B RADIO CONTROL 1 All pilots shall avoid ying directly over unprotected people vessels vehicles or structures and shall avoid endangerment of life and property of others 2 A successful radio...

Page 16: ...after binding to transmitter Transmitter too near aircraft during connecting process Move powered transmitter a few feet from aircraft disconnect and reconnect ight battery to aircraft Aircraft or tra...

Page 17: ...nce For questions or assistance please visit our website at www horizonhobby com submit a Product Support Inquiry or call the toll free telephone number referenced in the Warranty and Service Contact...

Page 18: ...conserve natural resources and ensure that it is recycled in a manner that protects human health and the environment For more information about where you can drop off your waste equipment for recycli...

Page 19: ...Prise EC2 c t contr leur 2 EC2 Connettore apparecchiatura batteria HBZ1004 1 5A AC Power Supply US Only 1 5A AC Power Supply US Only Alimentation secteur 1 5A USA uniquement 1 5A AC Alimentatore solo...

Page 20: ...istered trademarks of Horizon Hobby Inc The Spektrum trademark is used with permission of Bachmann Industries Inc Futaba is a registered trademark of Futaba Denshi Kogyo Kabushiki Kaisha Corporation o...

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