Frangible tube energy dissipation

Claim 1

A LOAD ENERGY DISSIPATION MEANS FOR AERIAL VEHICLES COMPRISING, IN COMBINATION: AN AERIAL VEHICLE AND A LANDING GEAR ARRANGEMENT THEREFOR; SAID LANDING GEAR ARRANGEMENT INCLUDING A PLURALITY OF TUBULAR MEMBERS PERPENDICULARLY ADJACENT SAID VEHICLE AND A PLURALITY OF REACTION MEMBERS EACH HAVING A SHANK PORTION POSITIONABLE WITHIN THE END PORTION OF EACH INDIVIDUAL TUBULAR MEMBER SPACED FROM SAID VEHICLE; SAID REACTION MEMBERS BEING OPERATIVELY CONNECTED TO TARGET ANTICIPATOR MEANS AND EACH SAID REACTION MEMBER SHANK MERGING WITH A CIRCULAR GROOVE OF HEMISPHERICAL CROSS-SECTIONAL AREA FORMED ON SAID REACTION MEMBER WHEREBY, WHEN SAID TARGET ANTICIPATOR MEANS ENGAGES A TARGET, THE LOAD ENERGY FORCE OF SAID AERIAL VEHICLE WILL ACT ESSENTIALLY ALONG THE LONGITUDINAL AXIS OF SAID TUBULAR MEMBERS CAUSING SLIDING MOVEMENT THEREOF RELATIVE TO THE INDIVIDUAL REACTION MEMBER SHANKS ASSOCIATED THEREWITH TO EFFECT MOVEMENT OF SAID TUBULAR MEMBERS INTO INDIVIDUAL ONES OF SAID GROOVES TO THEREBY PROGRESSIVELY STRESS PORTIONS OF SAID TUBULAR MEMBERS BEYOND THE ULTIMATE TENSILE STRENGTH THEREOF AND CAUSE PROGRESSIVE FRAGMENTATION OF SAID TUBULAR MEMBERS WITH SIMULTANEOUS UNIFORM DISSIPATION OF SAID LOAD ENERGY FORCE RESULTING IN CONSTANT DECELERATION OF SAID VEHICLE.