thank you both again for replies ,..
one thing to concider ,.I think I mentioned in a previous post the bag is 6 inches fully extended ,..if I did not mention that ,..my bust,.. this would allow the top arm to move 3 inches per side toward the bag in a flat landing scenario,..or 4 and 2 etc.the forces on the linkages don't change,.they just increase in one dirrection due to the force of the landing,..and recoil is buffered by the "recoil buffer's" shown in a seperate drawing above,..as for the wheel travel ..if the linkage moves3 inches at the bag,..the linkage should allow total travel of 6 inches plus ,..at then end of the arm where the gear is ,..it will or should travel near 10 inches,..the gear leg's are longer then the linkage's almost 7 times longer if the gear leg is around 30 inches and since the pivot of the leg and the pivot of the arm/linkage is not in the same place it reduces the full travel of the wheel,..if the pivots where closer ,..between the linkage and the landing gear pivot,.it would move the wheel further ,..it increases the load on the bag on intial impact of landing ,..but because the arms are short ..the inherent load on the airframe is not a hi impact load ,..or should not be ,.because of the linkage.
I did not draw all of the airframe components around the gear so visual of the linkage would not be obsstructed,..
thanks again for your input
I guess a working model is the next step,..I'll get on it