A ROTARY W4NG -AIRCRAFTBEARING FOR-ROTARY WING AIRGRAFT-MOTIONS This application claims the benefit of U.S. Provisional Application 611263,799 filed on 11/23/2009 (A ROTARY WlNG AIRCRAFT BEARING FOR ROTARY WlNG AIRCRAFT MOTIONS) which is herein incorporated by reference. Field of the lnvention The invention relates to the field of rotary wing aircraft such as helicopters. The invention relates to the field of rotary wing aircraft bearings for connecting rotary wing vehicle members and providing relative motion between the connecting rotary wing vehicle members. More palticularly the invention relates to the field' of elastomeric high capacity laminated bearings for rotary wing aircraft. Summary of the Invention In an embodiment the invention includes a rotary wing aircraft bearing to provide a constrained relative motion between a first rotary wing aircraft member and a second rotary wing aircraft member. The bearing includes an elastomeric mold bonded laminated bearing stack, the elastomeric mold bonded laminated bearing stack including a plurality of mold bonded alternating layers of nonelastomeric shim member layers and elastomeric shim members layers, the alternating layers having an exterior surface and an interior center distal from the exterior surface. At least one of the elastomeric shim members layers comprised of an interior elastomer region distal from the exterior surface, the interior elastomer region comprised of an interior cured elastomer composition having at least a first interior optical characteristic ingredient, and an exterior elastomer region encompassing the interior elastomer region, the exterior elastomer region proximate the exterior surface, the exterior elastomer region comprised of an exterior cured elastomer composition having at least a second exterior optical characteristic ingredient, the at least a second exterior optical characteristic ingredient different than the interior cured elastomer composition first interior optical characteristic ingredient, wherein with an elastomer void crack propagating from the exterior surface inward towards the interior elastomer region and a repeated rotary wing airciaft' I-eldlive Imotion-- between--the first rotary -wing--aircraft -member -and theseG6nd rotary wing aircraft member generates a plurality of interior cured elastomer composition crumbs to be expelled from the elastomer void, the interior cured elastomer composition crumbs optically distinguishable from the exterior cured elastomer composition. In an embodiment the invention includes a method of making a rotary wing aircraft bearing to provide a constrained relative motion between a first rotary wing aircraft member and a second rotary wing aircraft member. The method includes providing a plurality of nonelastomeric shim members. The method includes providing a plurality of elastomeric shim member layers. The method includes providing at least one of the elastomeric shim member layers with an interior elastomer region, the interior elastomer region comprised of an interior elastomer composition having at least a first interior optical characteristic, and an exterior elastomer region, the exterior elastomer region comprised of an exterior elastomer composition having at least a second exterior optical characteristic, the at least a second exterior optical characteristic different than the interior elastomer composition first interior optical characteristic, with the exterior elastomer region disposed out from the interior elastomer region. The method including bonding the nonelastomeric shim members and the elastomeric shim member layers together to provide an alternating laminated bearing stack with the exterior elastomer region exterior of the interior elastomer region, the exterior elastomer region proximate an exterior surface of the alternating laminated bearing stack, the exterior elastomer region comprised of an exterior cured elastomer composition, the at least second exterior optical characteristic different than the interior cured elastomer composition first interior optical characteristic, wherein with an elastomer void crack propagating from the exterior surface inward towards the interior elastomer region and a repeated rotary wing aircraft relative motion between the first rotary wing aircraft member and the second rotary wing aircraft member generates a plurality of interior cured elastomer composition crumbs to be expelled from the elastomer void, the interior cured elastomer composition crumbs optically distinguishable from the exterior cured elastomer composition. +n.-an-embudiment the invention includes a -rotary wing -aircraft beafirig to provide, a rotary wing motion between a first rotary wing aircraft member and a second rotary wing aircraft member. The bearing including an elastomeric bonded laminated bearing stack, the elastomeric bonded laminated bearing stack including a plurality of bonded alternating layers of nonelastomeric shim member layers and elastomeric shim members layers. The bearing including a predetermined first elastomeric shim member layer comprised of a first elastomer region, the first elastomer region comprised of a first cured elastomer composition having at least a first optical characteristic. The predetermined first elastomeric shim member layer comprised of a second elastomer region, the second elastomer region proximate an exterior surface, the second elastomer region comprised of a second cured elastomer composition having at least a second optical characteristic, the at least second optical characteristic different than the first cured elastomer composition first optical characteristic, wherein a rotary wing motion elastomer void crack propogating from the exterior surface inward towards an interior of the bearing interior elastomer region with the rotary wing motion generates a plurality of first cured elastomer composition crumbs expelled from the elastomer void, the first cured elastomer composition crumbs optically distinguishable from the second cured elastomer composition. In an embodiment the invention includes a bearing to provide a constrained relative motion between a first member and a second member. The bearing includes an elastomeric mold bonded bearing stack, the elastomeric mold bonded bearing stack including at least, a first mold bonded elastomeric shim layer, the at least first mold bonded elastomeric shim layer having an exterior surface and an interior center distal from the exterior surface. The elastomeric shim layer is comprised of an enclosed interior elastomer region distal from the exterior surface, the interior elastomer region comprised of an interior cured elastomer composition having at least a first interior optical characteristic ingredient. The elastomeric shim layer is comprised of an exterior elastomer region encompassing the interior elastomer region, the exterior elastomer region proximate the exterior surface, the exterior elastomer region comprised of an exterior cured elastomer composition having at least a second exterior optical dkafaeteristic-ingredient; theL-a-tl east --seconde--x terior. optical charade~isficin- gredient different than the interior cured elastomer composition first interior optical characteristic ingredient, wherein an elastomer void crack propogating from the exterior surface inward towards the interior elastomer region and a repeated relative motion between the first member and the second member generates a plurality of interior cured elastomer composition crumbs to be expelled from the elastomer void, the interior cured elastomer composition crumbs optically distinguishable from the exterior cured elastomer composition. Preferably the interior cured elastomer composition crumbs come from the interior cured elastomer composition, preferably the solid interior cured elastomer is broken up into crumbs with the repeated relative motion proximate an interior portion of the propogating crack and expelled outward towards the exterior, with the interior cured elastomer composition crumbs optically distinguishable from exterior cured elastomer composition crumbs and the exterior cured elastomer surface. Preferably the bearing is installed in a bearing location for bearing a compressive load between the first member and the second member in a first direction and the repeated relative motion comprises an alternating shear load in a first and second shearing direction with the compressive load first direction nonparallel to the first and second shearing direction. Preferably when installed the interior elastomer crumbs are visible by an observing inspector. Preferably the expelled interior cured elastomer composition crumbs are persistent with the crumbs preferably collecting and sticking to the exterior surface, and preferably persistent to an exposed fluid stream, preferably with the expelled interior cured elastomer composition crumbs sticking the exterior surface when the bearing is moving through air or exposed to a water streamlcurrent. Preferably the at least one elastomeric shim layer is visible by an observing inspector when installed in a bearing location for bearing a compressive load between the first member and the second member in a first direction and the repeated relative motion comprises an alternating shear load in a first and second shearing direction with the compressive load first direction nonparallel to the first and second shearing direction. Preferably the at least one elastomeric shim layer has an elastomer layer thickness t and an exterior surface bulge area BA, with the elastomeric shim layer having a bonded elastomer interface load area LA , with the elastomeric shim layer having a shape factor SF with .1