Suspension system for aircraft auxiliary power unit with elastomeric member

An aircraft motion control auxiliary power unit suspension system comprising:

• a first suspension linkage including a first and a second terminal end, each having a helical threaded portion having a same hand;
• a first elastomeric rod end having a helical threaded portion and a first motion control elastomer operatively interconnecting a first motion control nonelastomeric member and a second motion control nonelastomeric member, said helical threaded portion of said first elastomeric rod end having a hand corresponding to said hand of said helical threaded portion of said first terminal end of said first suspension linkage;
• and
• a second elastomeric rod end having a helical threaded portion and a first motion control elastomer operatively interconnecting a first motion control nonelastomeric member and a second motion control nonelastomeric member, said helical threaded portion of said second elastomeric rod end having a hand corresponding to said hand of said helical threaded portion of said second terminal end of said first suspension linkage, wherein said helical threaded portion of said first elastomeric rod end and said helical portion of said second elastomeric rod end are of said same hand and wherein the helical threaded portions of said first and second elastomeric rod ends each have at least two transitional imperfect threads.