Thingiverse
the GrumpyStick
door Grumpy_Old_Nerd
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Safely launch any (fpv) model airplane up to 5kg AUW with ease and 100% success !
Especially FPV pusher prop planes like the Funjet, Mini Drak, AR Wing Pro or the upcoming Mojito need a sophisticated launch technique to successfully get them airborne. INAV auto-launch helps a lot, but cannot deal with any user-induced launch mishap. Things get even harder the heavier the build and/or the more the drivetrain is propped for speed.
Most common launch techniques and their downsides:
Side-launch: needs to be trained. Tends to either induce a spin or a roll input into the plane. Uncomfortable for heavier planes 2kg AUW and up. Uncomfortable with wingspans 1 metre and up
Double-handed overhead launch: most uncomfortable launch. Tends to induce too much upwards pitch into the plane. Weakest launch speed. Prop may cut your face. Plane can only be launched with radio on the ground or by a second person
Discus lauch: most powerful toolless hand launch. Spin input similar to side launch, thro
Especially FPV pusher prop planes like the Funjet, Mini Drak, AR Wing Pro or the upcoming Mojito need a sophisticated launch technique to successfully get them airborne. INAV auto-launch helps a lot, but cannot deal with any user-induced launch mishap. Things get even harder the heavier the build and/or the more the drivetrain is propped for speed.
Most common launch techniques and their downsides:
Side-launch: needs to be trained. Tends to either induce a spin or a roll input into the plane. Uncomfortable for heavier planes 2kg AUW and up. Uncomfortable with wingspans 1 metre and up
Double-handed overhead launch: most uncomfortable launch. Tends to induce too much upwards pitch into the plane. Weakest launch speed. Prop may cut your face. Plane can only be launched with radio on the ground or by a second person
Discus lauch: most powerful toolless hand launch. Spin input similar to side launch, thro
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