The RV 8 Travel Jack was designed and manufactured by RV-8 builder / pilot Steve Jackson.
All steel construction, weighs less than 3 pounds. Jack mast easily removes from base plate for compact storage.
Uses 3/4" wrench to operate (wrench not included). Tested to 1350 pounds. Has securing arm that positions between the gear leg & brake to stabilize the jack works on both left and right gear leg with a simple adjustment.
Base measures 3-1/2" X 8"; mast stands 10" tall. Designed for RV-8 flat spring gear legs (only -- will not work on the other RVs with round gear legs).
Per the supplier: The Grove gear RV8 Jack works with the Grove gear as long as it has the Cleveland brakes supplied by Vans Aircraft. It does not work with Grove brakes.