Fly Gear • Aircraft Startup Guide

Pocket Rocket 3-Inch Getting Started Guide

A sub-249g-class 3-inch package with DJI Goggles N3, RadioMaster Pocket Crush, DJI O4 Pro, 2.4GHz ELRS and GPS.

3-inch4S ONLY550–1100mAhDJI O4 ProPocket CrushPROPS-IN
Small does not mean harmless. This is manual FPV, not a stabilized camera drone. Keep props off during setup and never connect 6S.

Power and equipment

Battery

4S only, approximately 550–1100mAh. Verify the correct connector and secure both main and balance leads.

Radio

RadioMaster Pocket Crush ELRS, configured and paired.

Video

DJI Goggles N3 paired to the DJI O4 Pro with OSD checked.

GPS

Configured for GPS features, but Rescue must be personally verified and safely tested.

Normal routine

POWER ON: RADIO → GOGGLES → QUAD

  1. ARM off and throttle down.
  2. Boot the Pocket; confirm the expected control profile.
  3. Power Goggles N3 using DJI's normal press, then press-and-hold sequence.
  4. Place the quad level, secure the 4S pack, connect power and leave it still.
  5. Verify ELRS, O4 video, OSD and battery voltage.

POWER OFF: DISARM → UNPLUG QUAD → GOGGLES OFF → RADIO OFF

PROPS-IN and controls

This build is configured props-in. With props removed, verify FC orientation, roll, pitch, yaw, throttle, ARM, mode ranges and failsafe. Reinstall each correct prop on the matching CW/CCW motor and confirm it produces downward thrust.

ELRS rebind—only if needed

Do not rebind a working link. If required, use the common three-power-cycle method: two complete power cycles, then leave the receiver powered on the third. Select Bind from the ExpressLRS Lua script, then verify all channels and telemetry with props off.

First flight

Under 249g does not mean harmless. Simulator practice, a clear field and an automatic disarm reflex still matter.