THE GRAND PRIZE WINNER FOR THE MOST MANEUVERABLE HELICOPTER AT THE
PARIS AIR SHOW IN JUNE OF 1961,
THE GYRODYNE YRON ROTORCYCLE
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The photograph above was taken during the filming of "A ride
in a Rotorcycle" in 1958 with our test pilot and the inventor of
the tip brake control Jim Ryan at the controls of our famous
XRON tail number 4008
This helicopter was designed for the US Navy to be a
disposable aircraft for down pilot behind enemy lines
Photograph of our famous XRON tail number 4008
completely restaured and flown by
Avo Kalaydjian at Van Nuys Airport, CA on the final
approach in 1997.
The design TBO for the transmission and all rotating
components was 50 hours.
After 56 years, they are still flying!!!
NEW AND EXCITING DEVELOPMENTS AT GYRODYNE!!!
As the original equipment manufacturer of the XRON, YRON Rotorcycle, we at GYRODYNE achieved major design changes and
improvements for our main XRON and YRON rotor transmission with higher mast separation for improved performances.

We also designed and manufactured new composite main rotor blades with improved profile and new tip brake control system.
Closed circuit bench testing program has been completed on the main rotor transmission and all rotating components.

For more information please contact: AVO KALAYDJIAN at gyrodyneca@aol.com
Avo Kalaydjian, our Pres., in a demonstration flight at
Van Nuys airport, California
Avo Kalaydjian on a final approach on a GYRODYNE XRON at
El Monte airport, California
Ferry Porsche, the son of Dr. Porsche, with Jim Ryan at Gyrodyne facility
in New York.
US Navy purchased 75 specially designed 356 Porsche engines from Porsche
GmBh in the 1960's
US Army photo of three XRON helicopters in flight in the 1960's
Jim Ryan on a XRON in flight at Gyrodyne facility in New York in the 1960's
THE DISPOSABLE XRON HELICOPTER PACKED FOR SHIPPING TO US
NAVY TO BE RE-PACKED FOR PARACHUTE DROP FOR DOWN PILOT BEHIND
ENEMY LINES
US MARINE ON XRON IN CAMP PEDDLETON CALIFORNIA
CONCEPT DESIGN OF SMALL UAV
THREE US MARINE TEST PILOTS ON SHIP DECK WITH XRON HELICOPTERS
XRON NAVY/MARINE DISPOSABLE HELICOPTER POWERED BY SOLAR GAS
TURBINE SPECIFICALLY DESIGNED FOR THE US NAVY CONTRACT
TO RUN ON REGULAR GASOLINE.
THE TBO BY SOLAR FOR THIS GAS TURBINE WAS 50 HOURS. THAT WAS
AUTHORIZED OPERATING INTERVALS FOR THE SOLAR GAS TURBINE.
YT62
-S-2 SOLAR TITAN GAS TURBINE ENGINE

THIS ENGINE WAS HIGHLY MODIFIED BY SOLAR FOR THE US NAVY
CONTRACT. ONLY TWO WERE PRODUCED
: SERIAL #00007 AND 8
GYROCYCLE CONCEPT