1. Drone type: Foldable quadcopter;
2. Components: Airframe, propellers, motors, flight controller, onboard data link unit;
2. Wheelbase: 900mm;
3. Folded dimensions: ≤350 x 450 x 600mm (L x W x H);
4. Unfolded dimensions (excluding propellers): ≤750 x 750 x 600mm (L x W x H);
5. Aircraft weight: ≤7kg (including one 30,000mAh 6S battery);
6. Maximum load capacity: 5kg;
7. Effective payload: 3kg;
8. Maximum takeoff weight: ≤12kg;
9. Maximum horizontal flight speed: ≥23m/s;
10. Economical cruising speed: 12m/s;
11. Maximum vertical flight speed: ≥4m/s;
12. Wind resistance: Level 6;
13. Hovering accuracy: 0.5m;
14. Navigation/Positioning: BDS/GPS;
15. Operating temperature: -10°C to 60°C (battery requires thermal insulation below 0°C);
16. Maximum flight altitude: 4500m (payload <1kg);
17. Flight altitude (AGL): ≤500m;
18. Endurance specifications:
1> ≤60 minutes (unloaded, normal temperature/pressure, hovering at 3m altitude, no wind);
2> ≤30 minutes (takeoff with 3kg payload, payload drop at 5km range, return flight unloaded, normal temperature/pressure, no wind);
3> ≤15 minutes (takeoff with 5kg payload, delivery at 3km range, return flight unloaded; tested at ambient t