Frequently Asked Questions

Have any questions ? Let us help you find the answers in our FAQ section below.


Due to our ultra-long endurance, the aircraft will reach the maximum data communication range long before you run out of fuel. Standard systems have a communication range of up to 20km and we also offer longer range options of 50km, 100km and 150km.

The ALTI Ascend can fly for up to 6 hours, around 4 hours fully loaded with payload. The ALTI Transition and Reach endurance is up to 12 hours with flights of typically around 6-8 hours fully loaded with payload. 

With an average cruise speed of 40kts (75km/h) and endurance of up to 12 hours, it's possible (and tested) to cover up to 900km in a single flight with the ALTI Transition and up to 450km with the ALTI Ascend.

Aircraft telemetry data and payload video uses a 2.4GHz radio system. The separate control link is 868MHz or 915MHz (country specific).

Two operators are recommended, depending on the application. Generally, a pilot in command who is responsible for all flight operations along with a co-pilot to assist with ground control operations, mission planning and camera/payload control. For more basic applications a single operator can easily operate the system.

From in the case to in the air, the aircraft can be ready to fly in under 10 minutes. This includes unpacking, assembly, mission planning, fueling and conducting all the pre-flight checks.

Our standard models are sold without Transponders, but we offer a range of ADS-B Transponders that can be installed. We have used and recommend uAvionics products.

We usually ship out between 8-12 weeks after an order is placed, depending on custom integration requirements and other optional extras. 

We suggest an area of between 4m to 6m squared. The aircraft takes off and lands vertically so any area larger than the aircraft itself will do, but any larger areas available are recommended.

VTOL stands for Vertical take-off and landing. Meaning the aircraft ascend and descend vertically and do not require a runway, bulky launch equipment or parachutes for take-off or landing. This ensures safety and increases the aircraft lifespan significantly.

Depending on the actual weather condition, The ALTI Ascend and Transition aircraft design does not permit operating in wet weather conditions. The ALTI Reach is capable of flight in wet and rainy conditions, depending on payload and other options required.

Yes, subject to our technical department conducting a feasibility analysis to check whether the requested modification or upgrade can be made. We also offer advanced custom development and integration services.

Yes, an experienced UAV pilot is required to operate and fly ALTI aircraft. While the aircraft are capable of autonomous flight from take-off to landing, a safety pilot is highly recommended for all flights. We have minimum operator requirements that can be used as a guideline to safely operate our aircraft.

Our hardware components are rated to handle temperatures between -10° and +50°

The aircraft has various autonomous failsafe features that allow for safe operations in all flight modes. In the event of a main engine failure, the Autopilot will detect the drop in airspeed and initiate the VTOL motors to immediately regain safe hover flight before the aircraft stalls.

Not yet, alternative landing gear incorporating floating devices are being developed for this purpose.

Command & Control

Yes, the video feed is digital (IP based) and can be streamed from the C2 over an internet connection or local network.

Not as standard but different encryption options are available.

After 30 seconds (adjustable) of data link signal loss the aircraft will go into an automatic Return-to-Land (RTL) mode and fly back to the take-off location and land.

After 1.5 seconds (adjustable) of control link signal loss, the aircraft will go into an automatic circle or loiter mode to regain connection. If after 30 seconds (adjustable) the link has not been re-established, the Return-to-Land (RTL) mode will be initiated.

For added redundancy and frequency allocation. Lower frequencies allow for a more stable and reliable connection and further range.

Yes. The data link is used to control the aircraft via the C2 mission planner (Guided mode, auto mission flight etc), meaning there is no direct input required from the pilot. This is also used in normal long range flights where you may fly outside the range of the pilot control link, which is only primarily used by the safety pilot for take-off and landings, if required.

All data and video footage can be recorded and stored directly on the C2 command and control hard drive and can be viewed or transferred to another storage device. Some payloads also offer on-board recording.

Of course, every aircraft includes the ALTI C2, our highly advanced long range dual screen command and control system.

Support & Training

Yes, the autopilot stores all flight telemetry and data for each flight. This data can be viewed by the operator remotely in-flight as well as downloaded from the aircraft on the ground. Flight logs can be sent to ALTI Support for post-flight analysis and for preemptive support services.

ALTI provides free full technical support (via email or telephonically) to all our clients.

Yes, we offer key spares for maintenance when purchasing a ready to fly aircraft.

Yes, we do offer a comprehensive training course for ALTI aircraft. Please note this is not flight training for learning how to fly unmanned aircraft, but rather an ALTI system familiarization training and how to operate and maintain ALTI aircraft.

Training is typically conducted on site with the client at their location/country, pending availability.

Depending on the experience of the client, we usually do training over 2 to 3 days, with an additional weather day for backup.  

Request a Quote

Our expert sales team is ready to assist you with package & pricing information along with any other questions you may have. Kindly fill in the request form via the link below and we will get in touch right away. 


Head Office TH15, Thesen Island
Knysna, Westen Cape
South Africa

Manufacturing 1 Waenhout Ave, Industria, Knysna, Westen Cape
South Africa


Head Office:
+27 (044) 008 5014

Manufacturing Office:
+27 (044) 382 7051