A 68-inch ground-adjustable pitch propeller is designed for multi-rotor and vertical fixed-wing aircraft, offering high performance, durability, and efficiency. Crafted from carbon fiber with an aerospace-grade aluminum hub, this propeller delivers exceptional strength, lightweight construction, and precise pitch adjustability to optimize performance across diverse flight conditions.
Key Technical Specifications
Propeller type: 3 blades
Includes: 3 pcs propeller blades and propeller hub
Specifications: IIKE
Diameter (inches): 68
Pitch (inches): Adjustable
Material: carbon fiber and aluminum
Surface Treatment : Polished or Frosted
Single net weight: 4.0 kg
Installation method: Screw fixation
Applicable models: Multi rotor,Vertical fixed wing
Thrust Limitation: 226.5kg
Optimum RPM: 2600
Working ambient temperature: -20℃~+60℃
Storage temperature: -10℃~+40℃
Propeller Introduction
1.Product details
| Blades | Crafted from carbon fiber for exceptional strength and lightweight performance |
| Foot | 7075 high-strength aerospace aluminum |
| Hub | Compact hub for reduced drag and improved engine cooling |
| Leading edge protection | Metal strip leading edge for better reinforcement |
| Aerodynamic configuration | Efficient, lightweight, and durable.Newly designed for excellent static and cruise thrust performance. Special design reduces noise. |
| Moment of Inertia | Calculated and validated to strictly comply with engine limitations. |
| Balancing | Each manufacturing step ensures blade balance where propellers undergo rigorous process control to ensure perfect balance. |
| Pitch adjustment | Ground adjustable pitch / Simple adjustment with a precise digital |
| Periodic checks | Screws tightening is checked before every flight. Blade pitch angles undergo minor inspections every 50 hours and major inspections every 3 months. |
| Accessories | The kit delivered with the propeller includes the hub and a complete set of hub bolts. |
2. PROPELLER ASSEMBLY
2.1 Basic parameters of propeller
| Model number | DS-68 | Serial numbers | |
| Compatible engine | ROTAX912/914 | Engine Horsepower | 80-115 HP |
| Direction of rotation | Left turn (viewed from aft) | Number of blades | 3 |
| Diameter | 68(inch) | Screw pitch | R75%15.5°15.5° at 75% radius (final adjustment based on engine speed requirements) |
| Range of pitch | 10~30° | Weight | ≤4.0 KG |
| Pull/thrust | 226.5KG/2386 RPM | Maximum speed | 2600 RPM |
| Materials | Carbon fiber composite material | Operating temperature | -20℃~60℃ |
2.2 Technical Parameter
| Propeller parameter | 15.5°/R75%15.5° at 75% radius | Air pressure | 1000hpa | Temperature | 33℃ |
| Humidity | 57% | Wind power | Test rig | ||
| Revolutions(RPM) | Torque(N·m) Torque((N·m) | Power(KW) | Thrust(KG) | ||
| 1000 | 40.64 | 4.25 | 40.2 | ||
| 1105 | 49.62 | 5.74 | 48.9 | ||
| 1206 | 59.11 | 7.46 | 58.2 | ||
| 1301 | 68.68 | 9.371 | 67.8 | ||
| 1404 | 80.11 | 11.78 | 78.9 | ||
| 1503 | 91.80 | 14.43 | 90.4 | ||
| 1612 | 105.6 | 17.83 | 104.2 | ||
| 1706 | 118.28 | 21.13 | 116.5 | ||
| 1802 | 131.96 | 24.90 | 130.2 | ||
| 1907 | 147.79 | 29.51 | 145.6 | ||
| 2001 | 162.72 | 34.09 | 160.3 | ||
| 2103 | 179.73 | 39.58 | 177.1 | ||
| 2220 | 200.29 | 46.56 | 199.4 | ||
| 2386 | 234.36 | 57.81 | 226.5 | ||
| 2453 | 244.53 | 62.81 | 240.1 | ||
| 2556 | 265.5 | 71.06 | 261.5 | ||
Manual
DISLAB Propeller Usage and Maintenance Guidelines
1. Adherence to VFR Regulations
DISLAB propellers must be operated exclusively under VFR (Visual Flight Rules) conditions. This restriction prohibits the utilization of aircraft equipped with DISLAB propellers in adverse weather conditions.
2.Unforeseen Adverse Weather Encounters
In the event of an unintended entry into adverse weather conditions, pilots must implement all necessary measures to land the aircraft at the earliest possible opportunity.
3.Severe Weather Precautions
During instances of thunderstorms or heavy rainfall, it is strongly recommended to reduce engine (propeller) RPM and expedite landing procedures.
4.Impact of Cleanliness on Efficiency
Propeller efficiency is directly influenced by the level of cleanliness. Contaminated propellers can experience a significant reduction in efficiency.
5.Major Repair Procedures
For major repairs or damage necessitating substantial maintenance, the propeller must be returned to the manufacturer or undergo evaluation by DISLAB’s expert team.
6.Balancing and Technical Interventions
The final inspection and balancing of propellers are meticulously performed by DISLAB prior to delivery. Any unauthorized technical intervention on the propeller may compromise its balance and potentially induce harmful vibrations that could damage the engine. In the event of any unexpected incidents, contact DISLAB immediately.
7.Additional Notes
For optimal performance and safety, it is crucial to adhere to the outlined guidelines and maintenance procedures.
Regularly inspecting and cleaning propellers according to the manufacturer’s recommendations is essential to maintain their efficiency and prolong their lifespan.
Failure to comply with the provided instructions and maintenance recommendations may void the warranty and could potentially lead to safety hazards.
By adhering to these guidelines and maintaining proper care, you can ensure the safe, efficient, and optimal performance of your DISLAB propellers.
Simulation and Analysis of Propeller Outflow Field
Aerodynamic shape optimization design of propellers based on propeller blade strip theory (vortex theory), CFD numerical computation and multi-island genetic algorithm.
Design of Chord Section Layering for Propeller Blades
ANSYSR was used to analyze the centrifugal force, gravity and aerodynamic force of the blade, calculate the strength, and design the propeller layup.
First Order Antisymmetric Vibration Mode Diagram of Propeller Blades
Rotating machinery is prone to resonance, so the natural frequency of the blade is calculated to ensure that the blade will not undergo resonance damage under the action of rotational excitation force.
Safety Warnings
- Risk of Rotating PartsThe propellers may cause serious injury when spinning at high speeds. Always maintain a safe distance and avoid direct contact with rotating components during operation.
- Prohibition of Overload and Manual Strength TestingThe structural strength of the propellers has undergone comprehensive testing. Do not exceed the specified load limits, and never test their strength by bending them manually. Any damage or loss resulting from improper use will be the sole responsibility of the user.
- Accessory Installation RequirementsEnsure all accessories are securely mounted to prevent safety hazards caused by loose components.
- Pre-Flight Inspection and Replacement GuidelinesConduct a thorough inspection of the propellers before each flight. If cracks, deformation, or other damages are detected, replace them with new ones immediately. Do not operate with faulty propellers.
- Storage Environment RequirementsStore the propellers in an environment free from corrosive substances such as water, sulfur dioxide (SO₂), nitrogen dioxide (NO₂), chlorine (Cl₂), organosilicon, cyano groups, and phenols. Recommended storage conditions: temperature between 0-40°C and humidity below 80%.
- Installation and Fixing InstructionsWhen mounting the propellers to the motor, use anaerobic screw locking glue of medium or higher strength to ensure a secure connection.
- Compliance StatementUse the propellers in strict accordance with local laws and regulations. Military use is strictly prohibited. Any risks or liabilities arising from non-compliant use will be borne by the customer.
