hi all, I am new to drone hobby, just bought a DJI mini 4 pro, and is studying it.
its spec is saying the take off altitude is 4000 meters, and the default flying height is 120 meters, and up to 500 meters high if registration is completed.
ok. what is “takeoff altitude” in simple term? i did a few searches and also IA searches, their explanation sounds understandable, but applying back to the mini 4 pro, does it mean the mini 4 pro can fly up to 4000 meters high when it is taking off? but its fly height is capped at 120 meters, it does not sound right to me.
can you please give me some explanation with examples if possible, thank you.
The takeoff altitude refers to your physical location when you launch the drone. For example, you might take off from a low-altitude location like a beach, or a high-altitude location like the top of a mountain.
The performance of the aircraft and its battery is limited when flying at high altitudes. Fly with caution. The maximum takeoff altitude of the aircraft is 4,000 m (13,123 ft) when flying with the Intelligent Flight Battery. If the Intelligent Flight Battery Plus is used, the maximum takeoff altitude drops to 3,000 m (9,843 ft). If a propeller guard is installed on the aircraft with the Intelligent Flight Battery, the maximum takeoff altitude becomes 1,500 m (4,921 ft). DO NOT use the propeller guard together with the Intelligent Flight Battery Plus.
The maximum flight height for the DJI Mini 4 Pro is 500 meters above the takeoff point. However, whether you’re legally allowed to fly that high depends on the regulations of the country where you’re flying. In many countries, it’s illegal to fly beyond visual line of sight (BVLOS).
If your location is within the United States, You need to acquire the TRUST Certificate.
Link to the TRUST Certificate at the Pilot Institute Web Site (FREE…)
If you are using propeller guards and/or the Intelligent Flight Battery; both or either pushes the weight over 250-grams and you are now required to register it at a cost of $5.00… Link to the FAADroneZone
thanks for the reply. that’s a very good explanation.
mt fuji in Japan, it is 3776 meters tall (below 4000 meters), it will be no problem to take off at the top of Mt Fuji. on the other hand, Mt Everest, it is 8848 meters tall (extreme example, ignore the low temperature for now). does the drone (mini 4 pro) have the sensor to tell what location altitude it is at when taking off?
I always thought the Altitude limits were based on the AGL as the launch site is considered Zero Altitude and the MSL was irrelevant and a “wage” at best… I also thought the 4,000-meter limit was based on the Low Density Air and the props just were not designed nor expected to grab enough air to fly safely…
Yes, I think that’s all true. From the wording in the DJI manual, it sounds like DJI is advising against flying at high altitudes as it could negatively affect performance.