Hello Mike. For our gyros Vortex M912, M2, and SCII we use TIG-welded highest-quality 4130 chrome-moly steel of more than adequate thickness.
The mast is multi-member-triangulated, affording the strongest frame/mast assembly in the industry. This means, for example, that the mast can sustain a rotor strike without catastrophic failure, an event which is typically far more structurally traumatic than a roll-over.
Thanks in part to this Stabilized Geometry, the combination of a generous wheelbase a full-beam tripod main suspension system and massive frame/mast assembly results in roll-over integrity that far surpasses other gyroplanes, or indeed, almost any low-wing aircraft.
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Never has any Vortex M912 mast or rotor ever failed in-flight, or broken upon impact.
Our years of frame/mast, progressive collapse, and Cyberseat development have really paid off for the owner:
In all crashes to date of the Sport Copter Vortex M912: NO fatalities, and NO totaled machines!
According to our records: 11/12 pilots had no injuries, and only 1/12 had light injuries.
4/12 gyros were only lightly damaged, and 8/12 had moderate damages. All were repairable.
It seems that no other gyroplane in the 550-600 lbs empty weight class (which includes some 2-place Euro gyros) can assert such a safety record.
Freely contact us to learn more about the "Sport Copter Difference"!
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503-543-7000