The U.S. aircraft register, updated daily
Who holds what · as the FAA records the name

Willow Mountain Ranch

Named as the FAA publishes it on its approvals.

Holds 2 approved modifications, most of them for the Piper PA-18 Super Cub. FAA spelling: Willow Mountain Ranch.

Approved modifications 2 · newest first

Piper PA-18 Super Cub 2Piper PA-19 1Piper PA-11 Cub Special 1Piper J-3 Cub 1
2023-12-21SA02579AK · Installation of Swing bar · J3C-40, J3C-50, J3C-50S
2011-06-28SA02384AK · Installation of a cabin forward battery box in accordance with Willow Mountain Ranch, Drawing No. WMR-FBB-05, Rev.... · PA-18, PA-18-105 (Special), PA-18-125 (Army L-21A)

Source: FAA Dynamic Regulatory System (type certificate data sheets, supplemental type certificates, parts manufacturer approvals, technical standard order authorisations). An organisation's name is as the FAA spelled it on each record; related spellings are separate pages.