List of electronics onboard:
RX: Spektrum AR8360T SAFE&AS3X receiver.
Steering Gyro: Assan AG61 steering gyro.
An additional Freewing LED control box. (For separate wing root landing light control.)
Assemble:
It will take you roughly 1.5-2 hours to put everything together. Unlike some previous Freewing/Flightline products. The PJ50 came with all the control linkages preinstalled. I only needed to do some minor adjustments to the elevator. Being such a large model, another person's help could come in handy.
The fuselage, however, will need to be glued together. My advice is, after applying glue, leave it standing on its nose for over 24 hours.
Minor modifications:
1. I moved the control box afterward, to accommodate the AR8360T receiver. If you do this, it will be harder to reach the cable connected to the control box. I'm transporting this jet without disassembling it. So I don't have to worry about disconnecting cables every time. For easier disconnecting cables. I've recommended the manufacturer relocate the control box right underneath the wing. (I drive a 2015 Audi Q7. For those of you wonder if it gonna fit inside your car)
2. The nose suspension feels too stiff on mine. I cut off 3-4 coils of the stock spring. And added another softer piece of the same length in it.
3. Moved the Rudder link 2 holes inside on the servo arm. The recommended travel for the rudder is too much for my liking. And it is also dangerous during the landing phase. I will talk about this in the flying section of this post.
Radio setting:
Aileron: 100% L/R with manual travel. 23mm L/R. 20% expo
Elevator: 100% up/down with manual travel. 24mm up/down. 20% expo
Rudder: 115% L/R with the 3rd hole on the servo arm. 27mm L/R (So you have a decent taxi turning radius and not too much rudder). 30% expo
Flap: Setup per manual. 15mm half, 29mm full.
CG.
The factory mark underneath the wing feels just right. I fly with an SMC 8100mah Lipo. Weights 910g.
Flying:
Cruise around: This jet is a really efficient flyer. It will fly around with about 50% throttle. Plenty of power. A 6000mah battery should last more than 4m30s for any style of flying.
Taking off: The wing load is around 110g/dm^2. That means it gets up in the air pretty quick. Took about 80-100ft on our geotextile runway with full throttle and half flap.
Aerobatics: The airframe will handle any mild aerobatics just fine. Loops, rolls, inverted.
Landing: I've landed it smoothly in 10-15mph of crosswind (35-45 degrees down the runway). It handles the wind just fine. Also, half flap works better for landing. The full flap feels too draggy for me. U will need to carry a good amount of throttle if you wish to land smoothly with full flap. The strange part is, when landing with a higher AOA, this jet doesn't like rudder at all. Just a little rudder will swing/bank the wing around for you. So I lowered the rudder surface travel to 27mm. And dialed in 30% expo.
Maiden flights:
Other things to watch out for:
1. There is a piece of screw right next to your nose gear, steering servo, and nose light cables. Over time it could damage the wire. I wrap the screw with a piece of thick tape.
2. The LED between two main wheels has exposed wires on mine. It could be a problem if you fly this jet in some confined Area. For example, our runway does not drain very well. And it gets all muddy after the rain. Those exposed wires are not gonna do well with some sodium and water. I wrapped the exposed wire with electrical tape. Then sealed it with some foam glue.
Attached Files
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