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QUICK GUIDE
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Terms & conditions
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The 7HV is a completely new design. This 700 electric helicopter is equipped with innovative features like an automatic belt tensioner, sliding battery tray, which make the quick change of batteries very easy, and a thrust bearing, which protects the ball bearings of the drive.

The helicopter has been designed by Sebastian Zajonz, who incorporated many years of experience in the design. This design avoids unnecessary complexity. Thus, the 7HV no push / pull servo linkages, and it has a relatively low parts count.
The single-stage transmission with large diameter and 1.0 module gear takes the punishment of the strongest motors and provides an efficient transmission.
Direct servo-to-swash linkages are equal length and have linear movement. Angle-error and uneven movement found on many other products can limit performance, and is therefore eliminated.
With the future in mind, the swash plate and rotor head geometry was optimized for flybarless.
All servos, the speed controller and the motor have been placed at the height of the tail boom and the battery is very close to center of gravity.
This arrangement ensures a very high center of gravity, which increases the performance, so the 7HV can achieve efficient maneuverability and utilize the flybarless systems fully, yielding great results.
Length: 1372mm
Height: 403mm
Rotor diameter: 1560mm
Motor pinion: 13T
Gear ratio: 13T: 10.46:1:4.8
Take off weight: ca. 4.3 - 5.1kg
Motortype: Brushless Outrunner
Battery size: LiPo mit 12S (2 x 6S) 4000-6000mAh
Rotor blade size: 690-710mm
Automatic belt tensioner
Sliding battery tray
Mod 1.0 Gears
Optimized for flybarless
High center of gravity
Ultimate Airframe Only 599.08
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Ultimate Airframe + 700mm carbon blades+ 510kvmotor 794.12
Ultimate Airframe + 700mm carbon blades+ 510kvmotor
+ hobby wings 120HV cntrl 944.12
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Number of cell 5-12 LiPo
Constant Current 120A
Burst Current 180A for up to 10 seconds
BEC None - Opto-isolated
Timing 0, 3.75, 7.5, 11.25, 15, 18.75, 22.5, 26.25
PWM 8KHz, 12KHz
Size 88x55x15mm
Weight 125g
Other Features Programming box and stick programmable

1 Typical Applications
1.1 Ideal for 600 class helicopter with 8 or 10 cell Lipo, or 700 class with 10 or 12 cell lipo.
1.2 Very powerful for large scale aircraft such as F3A

2 Specification

2.1 Output: Continuous 120A, burst 180A up to 10 seconds.
2.2 Input Voltage: 5-12 cells lithium battery or 15-36 cells NIMH battery.
2.3 BEC: None.
2.4 Control Signal Transmission: Optically coupled system.
2.5 Max Speed: 210,000rpm for 2 Poles BLM, 70,000rpm for 6 poles BLM, 35,000rpm for 12 poles BLM.
(BLM: BrushLess Motor)
3 Features

3.1 High performance microprocessor brings out the best compatibility with all kinds of motors and the highest driving efficiency.
3.2 Wide-open heat-sink design to get the best heat dissipation effect.
3.3 With 3 types of start mode: Normal / Soft / Very-Soft, compatible with aircraft and helicopter.
3.4 Smooth, linear, quick and precise throttle response.
3.5 The throttle signal is transfered through optically coupled system to avoid the electromagnetic interference.
3.6 Multiple protection features: Low-voltage cut-off protection / Over-heat protection / Throttle signal loss protection.
3.7 Perfect governor mode for helicopter.
3.8 The firmware of the ESC can be updated through the USB adapter on the Professional LCD Program Box.
3.9 User programmable. Several kinds of program methods are supported: transmitter, digital LED program card, advanced professional LCD program box, PC software. Very easy to program the ESC at home or at the flying field.
The new brushless outrunner for the 7HV produced by Compass Model designed in Germany 4926 510KV Compass SZ Technical Data:

10 poles - 12 slots (12N10P) - 14 turns
1.4 mm double epoxy sealed magnet wire - 21.5 mm cross section copper
YY connected - Speed: 515 K. - Shaft: 8 mm to 6 mm offset
Wave length: 34 mm - Diameter: 59.5mm
Length: 61mm - Weight: 480g
max. Current: 160A (to 12S Lipo) - Efficiency: approx: 94%
5.5 mm gold-contact connector system is motor - Stock: 8x16x5 mm1
The new Compass 700mm carbon blades.