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Single-seat open frame ultra-light helicopter with two rotor-tip mounted Wojcicki pulse-jets. Prot. FF 28 June 1957. 2 built. R.Simpson "Airlife's Helicopter and Rotorcraft", 1998
A new jet-powered helicopter, the JK-1 Trzmiel, designed by J. Kotlinski, a former member of Zurakowski's design team, was completed at the I.L. (Aircraft Institute) in the Spring of 1957 and was flight-tested later in the same year. TYPE: Light pulse-jet-powered helicopter. ROTOR SYSTEM: Two-bladed main rotor with small two-blade servo-rotor above main rotor and two-blade tail rotor. Main rotor blades, with a steel spar in the leading edge, are filled with plastic and have sheet duralumin skin. Servo-rotor of two circular planform blades mounted on short streamline stubs. Two-blade small diameter directional control rotor at the rear end of fuselage frame. Total main disc area 38m2. FUSELAGE: Uncovered steel-tube structure. POWER PLANT: Two 11-kg Wojcicki pulse-jets mounted at tips of main rotor blades. Jane's All the World's Aircraft, 1959-60
| Technical data for JK-1
Engine: 2 x Wojcicki turbojet, rated at 12.5kg,
main rotor diameter: 7m,
height: 2.35m,
take-off weight: 340kg,
max speed: 131km/h,
endurance: 15min
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| blasdfbvg, e-mail, 13.09.2014 | reply |
ENGINES!!!! not pulsejet or turbojet!! its RAMJET 12,5kg thrust at 180m /s (end of blades speed) | ja pierdole... to sa strumieniowe a nie pulsacyjne | Ś.P. Antoni Śmigiel zginął podczas katastrofy tego śmigłoca... | 15 minut lotu to mozna poswirowac ;(, w dodatku dwa silniki impulsowe musialy byc bardzo glosne. | niezłe... czego już takich nie robią? jakby się tak 10% ludzi przerzuciło z samochodów na takie cudeńka, ohh o ile przyjemniej jeżdziłby się po polskich drogach... tylko weź takim w głowe oberwij ;p | | saw, e-mail, 19.12.2007 | reply |
he a ja w swidniku mieszkam :D | | keath, e-mail, 19.12.2007 | reply |
Niesamowite lol !!! |
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