asa wrote: There's a little operation out west called cubcrafters that bought the PA18 type certificate and did exactly that.
I believe Piper still owns the PA18 TCDS (#1A2).
Cub Crafters got their own TCDS in 2004 for their CC18-180 Top Cub TCDS (#A00006SE),
but after they got going on their carbon cubs the Top Cub TCDS was sold in about 2015 to a chinese outfit.
FAA shows the current owner of that TCDS as Topcub Aircraft Inc of Portland Oregon.
Four or five years ago, an assembly plant was built on the Arlington WA airport KAWO,
rumored to be for building TopCubs, but that operation never materialized,
The building is currently being used by Vashon Aircraft to assemble their Ranger LSA's.