We would like to introduce you a special limited edition of ten DC/DS-24 transmitters, which was created for the 75th anniversary of the end of World War II. Unfortunately, the release of this series last year was significantly affected by a global pandemic, which also affected our plans. The limited edition is intended for end customers, collectors and fans of JETI and is created in the spirit of flying legends of World War II. Each transmitter has original design, which was artistically painted directly on the transmitter (Airbrush).
You can find more information and photos on our Facebook profile JETI Model.
1. REX Assist v1.19 (03/2021)
Airplane pitch with Assist enabled is no longer affected by acceleration (Horizon mode).
2. MVario2 FAI F5J v2.05 (03/2021)
Supports new sensor revision.
-Time interval of the RX alarm was modified to 2s.
-Extension the compatibility for Futaba R7008SB (S.BUS)
The update can be done by the Jeti Studio.
Contra Prop
| Weight [g] | 596 |
| Supply Voltage [V] | 42 |
| Batteries LiXX | 10 |
| Peak current (max 5s) [A] | 80 |
| Output shaft diameter [mm] | 8/17,5 |
Files for download
Manuals - Contra Prop
JETI Contra-propeller drive has a higher efficiency (6 to 16%) compared to a standard single-propeller drive. Lubrication of the gearbox is very easy and it is not necessary to disassemble the entire drive, all you have to do is remove the front spinner and the supplied lubricant is applied through the hollow shaft directly to the gearbox. Lubrication of the gearbox is recommended every three hours of motor operation. The drive is tested and used for more than three seasons by aerobatics legend Gernot Bruckman.
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Benefits of JETI Contra Prop:
- elimination the gyroscopic effect of the propeller
- reduce the maximum torque that goes through the fuselage of the airplane from the motor
- elimination of P-factor (a single propeller at a high angle to the direction of the flowing air
has a different thrust of each blade and therefore the aircraft has to be stabilised by rudder
input)
- the planetary gearbox of the drive performs the differential split of the power on the each
propeller. This solution guarantees a more stable flow of air around the fuselage compared
to belt systems that have the same rotation speed for both propellers.
- the optimized planetary gearbox for long service life is based on the technology of
manufacturing industrial gearboxes
- the gearbox lubrication system does not require the drive to be removed from the airplane
- powerful PHASOR motor with high efficiency allows the use of low capacity batteries
- more than double the braking effect of counter-rotating propellers during a steep descent
- higher drive efficiency 6 to 16%
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Basic parameters
Motor: Phasor 2035 (1150 kV)
Power: 2,2 – 2,9 kW
Power supply: max. 10S (42 V)
Current: 60 A (80 A max. 15 s)
Weight (including propeller holders and spinners): 596 g
Recommended propellers: 20-22/18 front + 20-22/20 rear
Alternative propellers (F3A): 23/20 front + 23/20 rear
Shaft diameter for front propeller: 8,0 mm
Shaft diameter for rear propeller: 17,5 mm
