Academy 4 offers the Advanced UPRT course as a part of it’s ATO approval (SI.ATO.040). It offers Advanced UPRT course and the course for Advanced UPRT instructors.

Virus for UPRT course

The course is conducted on the Pipistrel Virus SW 121 aircraft. The aircraft is superbly fitted for this course. It is certified for spins and features a full glass cockpit with both PFD, MFD and autopilot.

It flies great. It climbs at around 1000 fpm and travels at 120 kt. It has both the performance and automation/information and the great handling characteristics at high AOA to make it a perfect aircraft for this course.

The course in 2021 will be personally instructed by Academy 4 Head of training: Sašo Knez or Cpt. Jago Stemberger.

Sašo Knez is currently also a postholder of Pipistrel’s Chief Test Pilot. In the capacity of Chief test pilot and previously Test Pilot, Sašo was, as the instructor, the primary or first-flight test pilot in seven mayor test programs. This included also the Virus SW 121 certification. This gives him the deepest insight and self-confidence in the handling of the Virus SW.

Jago Stemberger is an ex PC-9 pilot a Citation XLS captain and an aerobatic pilot. He does most of the training for the Advanced UPRT courses these days.

The course is comprised of the following phases:

  1. Entry procedures (signing of training contract, advanced payment and entry into Academy 4 register)
  2. Online learning (an original Advanced UPRT course on
  3. Two days of on-site training.

The online training is based on examining the actual cases of loss-of-control accidents.

AUPRT on-line training

In these two days, the first day is a briefing day practice of the maneuvers in the X-ALPHA 200 simulator. This simulator time is not logged into the logbook. The first flight is also on that day.

The second day is composed of two flights. The total training is five hours of theory (online learning + classroom) and three hours of flight training.

This is the minimum training required. If the student pilot does not reach competency during these three hours, additional flight training is required.

The course can be recorder on video. The Virus SW is equipped with a Garmin Virb camera, that also records intercom communication. If you want this, bring to the course an micro-SD card with write speed of at least 100 MB/sec. For the total three hours you will need about 60 GB of storage space.

The price for the total course is: 1.450 EUR. This price includes both theoretical and practical training and administrative expenses and VAT. It is the total cost of the course if the training objectives are met in minimum hours specified.

The course is taught at Celje airfield, Slovenia (LJCL).

The schedule for the course is highly dependent on availability, weather and state of the runway. The flying training in the course needs about 6000 ft AGL cloud ceiling and good visibility.

Due to comfort, we do not recommend our course to pilots over 185 cm of height or 110 kg of mass.


Interested in taking the Advanced UPRT course Academy 4? Contact Sašo using the contact form below to check general availability of the course.


    If the proposed schedule works for you, please complete the following steps:


    If you are a student pilot from abroad, we recommend the following accommodation:

    The location of our base airport (LJCL) is given on the map below:

    Apart from the Hostel Plus Caffe, we also recommend two locations out of which first is economical (between 50 – 72 € per night), and second is optimum (Hotel Europa, between 96 – 121 € per night). However, apart from the aforementioned, both require the use of the rent-a-car. All of these locations and recommended direction on how to get to the airfield are given on the above map.

    When completing the online test, you will begin detail scheduling of the flying lessons.