Step 1: be driven to the airfield while wearing a hood
Step 2: be brought on board as a "friend" to an esteemed scientist, regardless of "no friends" restrictions. The agent there will call it in.
Step 3: while on board, wait until there's a lull in the conversation and introduce yourself by making smug remarks
Step 4: while the agent on board remarks on your bigness, have your backup plane approach.
Step 5: While the agent jokingly asks about your "master plan", your hired guns will have already rapeled down to the outside of the plane you're in, shooting through the windows at everyone
Step 6: the hired guns will have attached magnetic hooks on the fuselage, causing the plane to hang down, losing its wings in he process
Step 7: the back of the plane will be blown off, allowing your men to rescue you and anyone you wish to take. Substitute a corpse for the kidnapped passenger to avoid suspicion
Step 8: if they expect one of you in the wreckage (brother), leave a man behind.
Step 9: as you are carried by your bigger plane, cut the lines and let the old plane fall. Congratulations! Now is not the time for fear! That comes later.