# The Ultimate FPV Drone Pre-Flight Checklist: 15 Things to Check Before Every Flight
Most FPV crashes happen in the first 10 seconds. A loose prop, a forgotten arm switch, a GPS lock that never completed — these are the “stupid crashes” that cost hundreds in repairs but cost zero seconds to prevent. A disciplined pre-flight routine takes 90 seconds and will save you more money than any upgrade. Here’s the checklist that professional pilots use.
## The 15-Point Checklist
### 1. Transmitter ON First, OFF Last
Always power on your radio before plugging in the quad. Always unplug the quad before turning off the radio. This prevents the receiver from entering failsafe and the quad from potentially arming on signal loss.
☐ Radio powered on, correct model selected, throttle at zero, arm switch disarmed.
### 2. Visual Airframe Inspection (30 Seconds)
Walk around the quad. Look for:
☐ All 4 props present, no visible bends, chips, or white stress marks.
☐ Battery strap tight — no movement when you wiggle the battery.
☐ All frame screws present — missing screws cause resonance and arm failure.
☐ Motor wires intact — no cuts in silicone insulation where wires exit the arm.
☐ Antenna tubes upright, not bent — a kinked antenna has massively reduced range.
☐ Camera lens clean — a single grass smudge destroys image quality.
☐ XT60/30 connector not loose — should require firm pull to disconnect.
### 3. Prop Nut / Prop Screw Tightness
☐ Each prop nut is hand-tight (if using locknuts) or M2 screws are snug (if T-mount).
☐ On CW-thread motors (all 4 on modern builds), locknuts shouldn’t loosen in flight, but check anyway — a prop departing mid-flight is unrecoverable.
☐ For whoop-style press-fit props, pull up firmly on each prop — it should not come off.
### 4. Battery Voltage
☐ Battery at storage voltage? NO — charge it first. Flying a storage-charge pack (3.8V/cell) gives you 30 seconds before the low-voltage warning.
☐ Battery fully charged? Check cell voltages on charger display or plug into quad and check OSD. All cells within 0.05V of each other.
☐ Battery age check — any puffing, damage to shrink wrap, or corroded balance leads? Reject the pack.
### 5. Battery Mounting
☐ Battery centered and balanced. An off-center battery makes the quad drift and forces the PID loop to compensate.
☐ Battery strap runs through the frame slot, not just around the top plate — in a crash, the top plate can separate.
☐ Two straps for anything above a 4S 850mAh. One strap failure = battery ejection = lost quad.
☐ Balance lead secured — tuck it under the strap or use a rubber band. A dangling balance lead gets chopped by props.
### 6. Plug In and Listen
☐ All 4 ESCs beep (3 ascending tones from each corner).
☐ VTX fan spins up (if equipped).
☐ No smoke, no pops, no unusual smells.
☐ Receiver LED indicates bound (solid on ELRS, solid green on Crossfire).
☐ GPS module LED blinks (searching for satellites).
### 7. Goggles ON — Check Video
☐ Clear video image, no horizontal lines or static at idle.
☐ OSD elements all visible, timer at 00:00, craft name correct.
☐ Battery voltage displayed matches what you measured in step 4.
☐ RSSI / Link Quality showing valid values (RSSI not stuck at 0 or 99).
### 8. GPS Lock (If Equipped)
☐ Minimum 8 satellites locked before arming (10+ for long range).
☐ Home point set — most OSDs show “HOME” or a distance-from-home value once locked.
☐ GPS Rescue configured and tested on a previous flight.
**Never skip the GPS lock for a range flight.** Without a home point, GPS Rescue can’t bring the quad back — it flies to coordinates 0,0 (middle of the Atlantic Ocean, off the coast of Africa).
### 9. Arm and Idle Check
☐ Arm the quad (props spinning at idle).
☐ Listen: all 4 motors sound identical. No clicking, grinding, or uneven RPM.
☐ Quick blip of throttle (10-15%) — all motors respond evenly, no stuttering.
☐ Disarm. If anything sounds wrong, diagnose before flying.
### 10. Control Surface Check
With props spinning at idle:
☐ Roll right → quad tilts right (right-side motors speed up).
☐ Pitch forward → quad tilts forward (rear motors speed up).
☐ Yaw right → quad nose turns right (opposing diagonal motors speed up).
☐ Throttle up → all 4 motors speed up together.
**If any control is reversed**: Land immediately. Do NOT try to fly with reversed controls. Fix the channel direction in your radio or Betaflight Receiver tab.
### 11. Flight Mode Verification
☐ Arm switch disarms immediately when toggled (no delay).
☐ Flight mode switch shows correct modes in OSD (Acro/Angle/Horizon).
☐ Turtle mode (flip over after crash) configured on a separate switch and NOT active — active turtle mode prevents arming on some setups.
### 12. Failsafe Verification (Ground Test)
☐ Arm the quad (props spinning at idle).
☐ Turn off the radio. The quad should disarm within 1 second.
☐ If GPS equipped: confirm GPS Rescue activates on failsafe, not Drop.
**Do not skip this**. A quad that doesn’t disarm on signal loss becomes a flying blender that won’t stop until the battery ejects or it finds something to hit.
### 13. Timer and Battery Alarm
☐ OSD timer resets when armed (starts from 00:00).
☐ Battery warning set correctly (3.5V/cell for LiPo, 3.0V/cell for Li-Ion).
☐ mAh warning set to 80% of pack capacity (e.g., 1040mAh for 1300mAh pack).
### 14. Airspace and Environment
☐ Look up — any obstacles above your flight line (power lines, tree branches, drones already flying)?
☐ People nearby? Warn them before arming. FPV quads are dangerous at close range.
☐ Wind speed acceptable? Above 25km/h, flight times drop and turbulence increases.
☐ No rain, fog, or heavy mist — moisture kills electronics.
### 15. Mental State Check
☐ Are you focused? Flying distracted is more dangerous than flying with a damaged prop.
☐ First flight of the day? Take it easy for the first pack — your muscle memory needs 1-2 flights to warm up.
☐ Trying a new trick? Visualize it once on the ground before sending it.
## Printable Quick Card
Cut this out and keep it in your flight bag:
“`
=== PRE-FLIGHT: 90 SECONDS ===
1. [ ] Radio ON, correct model, throttle zero, disarmed
2. [ ] Props tight, no damage, battery strap secure
3. [ ] Battery: charged, balanced cells, no puffing
4. [ ] Plug in: 4 ESC beeps, receiver bound, GPS searching
5. [ ] Goggles: clear video, OSD correct, RSSI valid
6. [ ] GPS: 8+ sats, home point set
7. [ ] Arm: motors sound even, no grinding
8. [ ] Controls: roll/pitch/yaw correct direction
9. [ ] Failsafe: disarm on radio off
10.[ ] Environment: clear airspace, no people, safe wind
=== NOW FLY ===
“`
## The Most Expensive 90 Seconds You’ll Ever Skip
Every pilot has a story about the crash that happened because they skipped the checklist. The loose prop that flew off at 30 meters. The GPS that never locked before a mountain dive. The reversed roll channel from a radio update. These aren’t bad luck — they’re preventable failures with a root cause of impatience.
90 seconds. Every flight. No exceptions.
—
**Build with confidence. Fly with preparation.** UAVMODEL stocks everything you need for reliable FPV builds — frames, electronics, batteries, and tools. [Shop at uavmodel.com](https://uavmodel.com)