discussed above shear devices 120 may be used maintain the angles u03b8 11 between the bottom net poles 104 u2033 and the vertical beam 114 prior to impact because each bottom net pole 104 u2033 moves in synchronization with its respective top net pole 104 u2032 maintaining the angle u03b8 11 of the bottom net pole 104 u2033 using a shear device 120 simultaneously maintains the angle u03b8 1 of the top net pole 104 u2032 the shear devices 120 prevent wind or any other external force from inadvertently interfering with the recovery of the aircraft 300 fig3 b depicts a side view of the mobile aircraft recovery system 100 during impact of the aircraft 300 according to an embodiment of the present invention as the aircraft 300 strikes the net 102 the force of impact releases the shear device 120 and causes the pole pairs 104 to each pivot about their pivot points forward in the direction of impact d the pivoting momentum of the pole pairs 104 allows the net 102 to form a basket like configuration to envelop and capture the aircraft 300 the energy absorbing devices 122 i e the dampers attached to the pole pairs 104 help bring the aircraft 300 to rest in the net 102 as the pole pairs 104 pivot forward the angles u03b8 1 and u03b8 11 of the top and bottom net poles 104 u2032 104 u2033 respectively increase to angles u03b8 2 and u03b8 22 relative to the perpendicular axis a defined by the vertical beam 114 of the arm assembly 110 according to one embodiment the angle u03b8 2 of the top net pole 104 u2032 increases more than the angle u03b8 22 of the bottom net pole 104 u2033 during capture furthermore the impact of.