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In Fight
During its first flights the Goblin has to be “run in”.
The Damper, the main gear, the uniball and other parts must undergo some slight wear to operate smoothly. It is likely that
during the very first flights the model may exhibit a swaying phenomena, particularly at low head speed.
This phenomena disappears after a few flights.
General Information
A high-speed helicopter requires a good balance between power, aerodynamic efficiency, blade efficiency for speed and stabilization
system (flybarless unit).
The stability of the helicopter at high speeds is usually dependent on the types of blades being used. The Goblin Speed blades are
designed specifically for this purpose, they combine ease of flight while maintaining stability at high speeds.
"SPEED" Flying
It is recommended to have at least 2 flight conditions (idle up modes), one for take off and landing and another flight condition at
much higher RPM for speed flight.
The high RPM flight condition should only be used while away from the pilot (at least 30 meters).
Speed passes should always be made longitudinally to the pilot and spectators (left to right or right to left) and always at a safe
distance.
The main and tail blades included with the Goblin Speed are not suitable for 3D flight, they’re optimized for sport and speed flying
ONLY.
If you would like to perform 3D maneuvers with your Goblin Speed, we recommend using standard 3D blades. SAB Part # BW4690
and BW5115.
General Setup Tips:
· We recommend 15° of collective pitch for speed flying. Exceeding 15°-16° will simply cause loss of efficiency, which will in turn
“rob” power without increasing forward speed.
· We recommend a rotor speed of approximately 2400 to 2600 RPM max. The same applies for rotor speed, using higher rotor
speeds can potentially exceed 0.7 to 0.8 match speed for the blade tips, which will decrease efficiency.
· We recommend cyclic servos with at least 20 kg of torque.
· ESC Tested:Kosmik 160-200 and YGE 160-320
· Motors Tested: Pyro 750-800-850 Competition, Scorpion HK 4535 / 4540
Tips
There are a few extra parts in the kit:
- H0372: Speed tail fin, this fin minimizes the drag induced by
the standard tail fin
- H0379: Safety landing gear, increases safety during take offs
and landings . The correct angle connection reduce the drag
- H0377: This allows you to lock the batteries. Please use under
the front strap.
To Improve cooling, it is possible to cut a small
opening in the position shown in Figure.
We recommend using something to prevent damage to the canopy due to vibration. In the picture, we used a piece of self adhesivevelcro on one side (Fig. 1) and a piece of from (from a blade holder) on the other side. (Fig.2)
H0372
H0379
H0377
Battery
Motor
Pinion
RPM
Pitch
12S - 5000 mAh
Kontronik Pyro 750 -56
22T
2400
+15°
Scorpion HK 4530 -540
23T
2400
+15°
14S 4000-5000 mAh
Kontronik Pyro 800 -48 Co
23T
2500
+16°
Kontronik Pyro 850 -50 Co
22T
2500
+16°
Scorpion HK 45XX -550
20T
2500
+16°
Copyright © 2013 - SAB Heli Division - All rights reserved
Page 32
Chapter 15, In Flight
34


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