Amateur Built GY-20-1, Serial Number RHR 1 Manufactured by Mr Kurt Riesen in Switzerland as homebuilt (Non - EASA) after the original drawings Empty Weight: 338.5 kg MTOW: 515 kg Noise: ICAO Annex 16, Vol. 1, Chapter 6, 63.3 dB(A), Swiss Category C Cruise Speed: 85 Kts with 16/17 Liter Fuel Consumption