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X85 Pro Series for 6-40 kg sUAV
X85 Pro Series for 6-40 kg sUAV
Much more eject force — Larger parachutes — The best weight/performance ratio of all parachute recovery systems!
Light. Efficient. Reliable. Professional series launchers utilize patented Skycat Fuse® technology to offer market-leading reliability and groundbreaking performance in a small package.
No fault-prone servos, gases or explosives are needed! X85-CF is suitable for medium and large copters from 6 kg and up to 40 kg.
All parachutes are compatible with Skycat.pro’s the Bullet-method folding.
All-in-one packages include:
X85 launcher, V2 Trigger unit, and parachute
5 pcs ready-made Fuses
Pro-grade Harness
Extension cord as a standard, for stabilizing the descent and for extending the parachute and copter distance
Arming and folding tools
For a complete system, these are required:
a PWM signal source for eject commands such as Skycat Rescue radio, autopilot or any other standard RC radio
Power source, i.e the UAV or separate battery
The Bullet method parachute folding
The video below shows the Bullet-method performance in real motor failure. In the beginning of the eject, shroud lines are inside of the parachute and the Extension cord straighten out. Shroud lines are naturally pulled out from the parachute pack, after a safe distance from the propellers and the copter body is reached.
Table below shows calculated descend speed, impact energy and freefall equivalent in relation to aircraft weight. Note, check initial shock values for your drone weight if the eject velocity can be high.
Descent metrics for the IFC-84-S parachute
| Drone weight, kg | Descent speed, m/s | Impact energy, joules | Freefall equivalent, meters |
|---|---|---|---|
| 6.0 | 3.6 | 38 | 0.66 |
| 8.0 | 4.1 | 68 | 0.86 |
| 10.0 | 4.6 | 105 | 1.08 |
| 12.0 | 5.1 | 152 | 1.33 |
| 14.0 | 5.5 | 206 | 1.54 |
| 16.0 | 5.8 | 270 | 1.71 |
| 18.0 | 6.2 | 340 | 1.96 |
| 20.0 | 6.5 | 420 | 2.15 |
| 22.0 | 6.8 | 508 | 2.36 |
| 24.0 | 7.1 | 605 | 2.57 |
| 26.0 | 7.4 | 710 | 2.79 |
| 28.0 | 7.7 | 823 | 3.02 | 30.0 | 8.0 | 945 | 3.26 |
| No parachute, comparison: | |||
| 10.0 | 50.0 | 12 500 | ∞ (infinity) |
Descent metrics for the IFC-96-SUL parachute
| Drone weight, kg | Descent speed, m/s | Impact energy, joules | Freefall equivalent, meters |
|---|---|---|---|
| 6.0 | 3.1 | 29 | 0.49 |
| 8.0 | 3.6 | 52 | 0.66 |
| 10.0 | 4.1 | 81 | 0.86 |
| 12.0 | 4.4 | 116 | 0.99 |
| 14.0 | 4.8 | 158 | 1.17 |
| 16.0 | 5.1 | 206 | 1.33 |
| 18.0 | 5.4 | 261 | 1.49 |
| 20.0 | 5.7 | 322 | 1.66 |
| 22.0 | 6.0 | 389 | 1.83 |
| 24.0 | 6.3 | 463 | 2.02 |
| 26.0 | 6.50 | 543 | 2.15 |
| 28.0 | 6.71 | 630 | 2.29 | 30.0 | 7.0 | 723 | 2.50 |
| No parachute, comparison: | |||
| 10.0 | 50.0 | 12 500 | ∞ (infinity) |
Descent metrics for the IFC-120-SULR parachute
| Drone weight, kg | Descent speed, m/s | Impact energy, joules | Freefall equivalent, meters |
|---|---|---|---|
| 6.0 | 2.5 | 19 | 0.32 |
| 8.0 | 2.9 | 33 | 0.43 |
| 10.0 | 3.3 | 52 | 0.56 |
| 12.0 | 3.6 | 75 | 0.66 |
| 14.0 | 3.8 | 101 | 0.74 |
| 16.0 | 4.1 | 132 | 0.86 |
| 18.0 | 4.3 | 167 | 0.94 |
| 20.0 | 4.6 | 206 | 1.08 |
| 22.0 | 4.8 | 249 | 1.17 |
| 24.0 | 5.0 | 297 | 1.27 |
| 26.0 | 5.2 | 348 | 1.38 |
| 28.0 | 5.4 | 630 | 1.49 | 30.0 | 5.6 | 463 | 1.60 |
| No parachute, comparison: | |||
| 10.0 | 50.0 | 12 500 | ∞ (infinity) |
Which parachute to choose?
IFC-84-S
In case the lowest deploy time is required, then IFC-84-S is a good choice
This parachute is mechanically strongest in the X85-CF range
In the combination of X85-CF’s double spring force compared to X68-CF, the overall performance is the most optimal
This is a good choice, for instance for R&D labs and other use cases where dozens of ejects are realism and the parachute’s mechanical longevity matters
IFC-96-SUL
IFC-96-SUL has a good combination of optimal deploy time and weight ratio
The parachute is made of the lightest available fabric
When good drag, lowest weight, and the performance matters, the IFC-96-SUL is a good choice
IFC-120-SULR
IFC-120-SULR has the largest canopy of entire Skycat.pro’s direct launcher range, producing the highest drag
The parachute is made of the lightest available fabric
When low deployment weight, highest possible drag and the overall performance matters most, the IFC-120-SULR is a good choice
Mechanical installation
We offer many kinds of mounting options, check them out at the store. The launcher needs to be supported from the base against recoil forces. For custom installation, X85-CF launcher features M3 threads at the base. Velcro can be used to secure the launcher in place.
Parachute installation
The parachute is connected directly to the most durable locations of the airframe. The Pro Harness Upgrade is included to the package as a standard.
Electrical installation
The trigger is controlled via a PWM channel through an RC receiver, an autopilot PWM output, or other device. Multiple control sources can be used by adding an extra trigger for each. Trigger gets its 4.9 - 6.1V operating voltage from a PWM wire.
Note: Pixhawk Cube is seen to have too weak PWM feed and V4 Trigger may pull the line down too low and therefore is not compatible.
The power source for launch can either be the aircraft's own flight battery, or a dedicated launch battery.
To get protection against aircraft’s power loss, it's recommended to use a dedicated launch battery and add a BEC backup guard to the system, to keep receiver and trigger alive, even if aircraft BEC fails.
Technical data
System specifications
Total system weight approx.:
IFC-84-S 765 g (1.67 lbs), including the X85-CF-L2 launcher, the parachute, the Trigger and the 50 cm Harness with an Extension cord
IFC-96-SUL 640 g (1.41 lbs), including the X85-CF-L1 launcher, the parachute, the Trigger and the 50 cm Harness with an Extension cord
IFC-120-SUL 745 g (1.64 lbs), including the X85-CF-L2 launcher, the parachute, the Trigger and the 50 cm Harness with an Extension cord
Launcher
X85-CF launcher is made of carbon fiber tube, combined with precision NC-machined POM plastics
Diameter: 85.3 mm / 3.358 in
Length L1: 218 mm / 8.57 in
Length L2: 256 mm / 10.15 in
Weight L1: 294 grams / 10.37 oz
Weight L2: 314 grams / 10.37 oz
4 x M3 mounting threads at bottom
Temperature range: -25°C - +40°C / -13°F - +104°F (Safety note: Direct sunshine may make the black tube hot to touch.)
Special temperature ranges and colors are available upon request.
Parachute
Maximum aircraft weight is defined by the parachute manufacturer. It is the maximum weight the parachute can withstand when opened in terminal speed (freefall). Model parachutes are designed to open immediately and therefore forces can be extremely high, therefore it's important to stay within the limits.
Note: Fruity Chutes parachutes diameter is represented as an effective diameter when deployed. Especially round parachutes are typically represented as flat diameter measured on the ground, which results in much higher value on paper, but a smaller parachute in real use.
Recommended weight ranges and copter weight limits are given by the manufacturer of the parachute. Weight has two kinds of limits:
Impact speed. What is in the general recommended maximum weight of the copter for achieving reasonable low impact to the ground.
Parachute strength. What is the maximum weight of the copter which parachute manufacturer guarantees that parachute will withstand parachute deploy impact without breaking. Impact from terminal speed (free-fall) when parachute deploys (opens fully) can be huge. These parachutes are designed to deploy immediately and any kind of slowing method for deploy is not used. Therefore shock forces are much higher than could imagine.
Fruity Chutes IFC-84-S
Weight: 367 grams / 13.04 oz
Maximum aircraft weight: 30 kg / 66.2 lbs
Manufacturer's size data: Effective diameter when deployed 84 in / 2.13 m
Fruity Chutes IFC-96-SUL (Ultra Light)
Weight: 256 grams / 9 oz
Maximum aircraft weight: 25 kg / 55 lbs
Manufacturer's size data: Effective diameter when deployed 96 in / 2.43 m
Fruity Chutes IFC-120-SULR (Ultra Light)
Weight: 350 grams / 14.2 oz
Maximum aircraft weight: 40 kg / 88 lbs
Manufacturer's size data: Effective diameter when deployed 120 in / 3.04 m
Trigger
Trigger weight: 26 - 66 grams depending on version and cable length of the final installation
Launch battery voltage: 3-4S; V2 Trigger
Launch battery voltage 3-4S;* V3 Pro Trigger
Launch battery voltage 3-4S*; V4 Pro Trigger
Receiver voltage: 4.9V - 6.1V
Receiver power supply 5V/0.5A: V3 Pro Trigger
Receiver power supply 5V/0.5A: V4 Pro Trigger
*V3 Pro and V4 Pro Triggers are up to 4S with X85-CF launchers. With X48-CF, X55-CF, and X68-CF they are up to 6S.
The unit is shipped with a user’s manual. An instructional video about arming, disarming and parachute packing is sent upon order. Don't hesitate to contact us at support@skycat.pro if you have any questions about this product.
U.S. Patent No. 9,611,044