1st flight tests within the ESPOSA project

On Friday, February 13, shortly after noon, a pair of TP 100 turboprop engines began running smoothly on the EM-11C Orka aircraft of the Polish firm Margański & Myslowski. Afterwards, the aircraft took off elegantly into the sky over the Czechowice-Dziedzice aerodrome in the Silesian Voivodeship.  This was the first flight performed within the ESPOSA project, which is coordinated by PBS Velká Bíteš.
The pilot, Krzysztof Galus, right from the very beginning appreciated the high acceleration on the runway. In the first minutes, he tested the rate of climb of the aircraft at 10 m/s. The testing also included flight with one engine. During the test, the Orka climbed up to 2.5 metres per second. After landing, the flight test pilot was really excited. In his opinion, the combination of the TP 100 engines from PBS and the Orka aircraft was excellent. He characterized the aircraft handling during take-off, flight and landing as very simple. During this significant afternoon, the Orka went up three times, with an overall flight length of almost 1.5 hours.

Parameters reached during the test flight

Acceleration from 0 to 60 knots (111 km/h) at 150 metres
Take off speed 148 km/h (80 knots)
Minimum speed 109 km/h (59 knots)
Rate of climb 10 m/s
Rate of climb with one engine  2.5 m/s
Maximum speed 287 km/h (155 knots)
Number and duration of flights 3 (28, 22 and 39 minutes)

EM-11C Orka Specjalny 02 is a Polish shoulder-wing monoplane driven by two TP 100 turboprop engines in pusher configuration, designed for the transportation of up to 4 persons. Effective weight of the aircraft is 550 kg, maximum take-off weight 1,820 kg. Aircraft dimensions: length 8.705 m, wingspan 13.5 m, wing area 16.5 m2, height 2.585 m. Maximum speed 359 km/h. Rate of climb 10 m/s. Manufacturer: Margański & Mysłowski Zakłady Lotnicze.
TP 100 is a 180 kW turboprop engine with a total weight of 61.6 kg. Its base is the proven TJ 100 engine, which fulfils the role of the gas generator, drives the free turbine and, through a reducer, a three-bladed propeller with constant speed (2,158 rpm). Engine manufacturer: První brněnská strojírna Velká Bíteš, a. s.