DJI Agras T70P: Preflight, Takeoff, Flight Modes e Return-to-Home
DJI Agras T70P: Preflight, Takeoff, Flight Modes e Return-to-Home
A seção 3 do DJI AGRAS T70P User Manual v1.0 (2025.11) organiza normal flight em compass calibration, preflight, motor start/stop, takeoff, landing, flight modes e RTH.
Resumo: carregue devices, revise propulsion/sensors/antennas, secure battery/tank/arm locks/cables, confirme no blockage/leaks e revise DJI Agras warnings. Calibre compass quando o app solicitar, preferencialmente com empty tank. Start motors com DJI Combination Stick Command. Emergency motor stop: C1 + C2 + Flight Pause. Smart RTH exige Home Point + strong GNSS. Low Battery e Failsafe RTH seguem regras separadas.
1. Compass calibration
Only when DJI Agras prompts.
2. Magnetic interference
Avoid utility poles/steel walls.
3. Ferromagnetic items
Remove keys/phones during calibration.
4. Empty tank
DJI recommends.
5. Do not recalibrate without reason
Follow app guidance.
6. Charge all devices
Power readiness first.
7. Genuine components
Manufacturer requirement.
8. Motors/props
Inspect.
9. Vision
Clean/unobstructed.
10. Radar/antennas
Good condition.
11. Battery
Secure.
12. Tank
Secure.
13. Arm locks
Engaged.
14. Cables
Secure/undamaged.
15. No blockage
Spray path ready.
16. No leaks
Preflight fail if leaking.
17. Sprinklers
Operate normally.
18. Clear debris
Bags/film removed.
19. DJI Agras warnings
Review all.
20. Payload
Do not exceed current recommendation.
21. Start motors
Use DJI CSC.
22. Do not improvise CSC
Use manufacturer-defined input.
23. Emergency motor stop
C1 + C2 + Flight Pause.
24. Causes crash
Emergency risk reduction only.
25. Takeoff area
Open/flat.
26. Orientation
Rear facing operator.
27. App normal
No unresolved status errors.
28. Home Point
Confirm before takeoff.
29. Gentle throttle
Rise to safe height.
30. Initial hover
Check response/telemetry.
31. Landing area
Open/flat.
32. Stop motors
Throttle down until stop.
33. Low battery
Land as soon as possible.
34. Normal mode
Precise positioning.
35. Attitude mode
No precise horizontal hold.
36. Wind in Attitude
Drift risk.
37. Unexpected Attitude
Land safely ASAP.
38. Smart RTH requirements
Home Point + strong GNSS.
39. Start Smart RTH
Press/hold RTH.
40. Cancel Smart RTH
Possible if manual flight safer.
41. Low Battery RTH
Aircraft calculates return margin.
42. Critical battery separate
Can force auto landing.
43. Failsafe RTH
Lost signal + RTH configured.
44. >3 seconds signal loss
Triggers configured action.
45. Lost-signal options
RTH, land or hover.
46. Link restored
Operator can regain control/cancel RTH.
47. RTH obstacle avoidance
Conditional.
48. Power lines/small obstacles
Still hazards.
49. Landing Protection
Normally hover at 3 m.
50. Fixed RTK exception
Direct landing.
51. Full preflight
- compass;
- charge;
- propulsion;
- sensors;
- battery/tank;
- locks/cables;
- spray system;
- clear area;
- warnings;
- payload;
- Home Point.
52. Takeoff acceptance
- flat/open ground;
- rear to operator;
- app normal;
- Home Point;
- correct CSC;
- stable hover.
53. Plan RTH before takeoff
Know lost-signal action and route hazards.
54. Verify Home Point
Do not assume.
55. Erro: calibrating near steel
Avoid.
56. Erro: ignore one warning
Review all.
57. Erro: emergency stop as normal stop
No.
58. Erro: RTH sees everything
No.
59. Perguntas frequentes
Compass?
When prompted.
Motor start?
DJI CSC.
Emergency stop?
C1 + C2 + Flight Pause.
Failsafe RTH?
Signal loss with RTH configured.
Landing Protection?
Normally 3 m hover.
Fonte e revisão
Fonte: DJI AGRAS T70P User Manual v1.0, 2025.11, sections 3.3–3.7.
60. Preflight deve terminar em decisão clara
O checklist não existe para simplesmente confirmar que itens foram observados. Um leak, loose arm lock, unresolved warning, damaged propeller ou unstable positioning deve produzir um no-go até a condição ser resolvida.
61. Home Point deve ser confirmado visualmente no app
Antes de confiar em Smart RTH ou Failsafe RTH, confirme que o Home Point registrado corresponde ao local correto da operação atual.
62. Lost-signal action deve entrar no briefing
Ground crew e pilot precisam saber se o aircraft está configurado para RTH, land ou hover quando o C2 link se perde por mais de 3 seconds.
63. Initial hover é um systems check
Use os primeiros segundos depois do takeoff para observar GNSS/RTK state, flight mode, controller link, propulsion response e qualquer warning novo antes de sair para a route.
64. RTH path precisa ser revisado para obstacles
Power lines, poles, trees e small obstacles podem continuar perigosos durante RTH. Planeje o return corridor antes da mission.
65. Landing Protection não elimina pilot responsibility
O hover a 3 m normalmente dá uma oportunidade para verificar a landing area, mas o operator ainda precisa avaliar people, obstacles e ground condition.
66. Post-flight shutdown checklist
- aircraft landed on safe ground;
- motors stopped;
- aircraft powered off;
- controller powered off;
- warnings/logs preserved;
- propulsion inspected if abnormal;
- battery removed only after shutdown.
67. Flight-readiness record
Para fleet operations, registre compass prompt status, Home Point, lost-signal action, payload recommendation, takeoff battery level e any warnings. Isso torna repeated issues mais fáceis de diagnosticar.
68. Compass calibration deve ser prompt-driven
A DJI orienta calibrar quando solicitado pelo app. Evite fazer calibration perto de utility poles, steel-reinforced walls ou outros magnetic sources, e não carregue keys/phone durante o procedimento. A source recomenda empty tank.
69. Home Point deve ser confirmado antes do takeoff
Smart RTH depende de um Home Point registrado e GNSS suficiente. Verifique esse state antes de sair do launch area, especialmente em missions que utilizarão RTH como lost-signal response.
70. Payload recommendation pertence ao preflight
O DJI Agras calcula um recommended payload limit com base no aircraft condition e surroundings. Não adicione material ao tank acima desse valor mesmo que o nominal model payload seja maior.
71. CSC e emergency motor stop são comandos diferentes
O Combination Stick Command inicia os motors no chão. C1 + C2 + Flight Pause é um emergency-only motor-stop command em voo. Misturar esses dois procedures é um training risk.
72. Landing Protection normalmente cria um checkpoint a 3 m
Durante auto landing, o aircraft normalmente desce até aproximadamente 3 m e hovera para o operator verificar a landing area. Com fixed RTK positioning, a source diz que ele lands directly em vez desse hover step.
73. Low Battery RTH e critical low battery são branches separados
Low Battery RTH avalia se a remaining energy é suficiente para retorno. Critical low battery entra no emergency chapter e pode forçar automatic descent/landing que não pode ser cancelado.
74. Failsafe RTH depende da lost-signal action configurada
Depois de signal loss superior a três segundos, o aircraft executa a configured action. RTH é o default citado, mas landing ou hover também podem ser selecionados. Revise isso antes de cada mission.
75. Preflight acceptance checklist
- compass sem prompt pendente;
- all devices charged;
- propulsion/sensors/antennas normal;
- battery/tank/arm locks/cables secure;
- spraying system sem blockage/leak;
- payload recommendation revisada;
- Home Point recorded;
- lost-signal action conhecida;
- landing area clear;
- DJI Agras warnings resolvidos.
