I had looked at the TP for most of the same reasons everyone else
had.The idea of a low cost,simple build,( I may be wrong here )UL was
interesting. Contacting the group,I found out the UL part was nearly
impossible. I chose a larger ac,designed by someone with 50 years of
experience designing homebuilts that became certified and have again
become homebuilts. I decided with costs spread out over 5-6 years and
a VW powerplant made it affordable,and inexpensive to operate.I know
the design is sound, all the numbers have been run, the only thing
that is yet to be determined are my skills and judgement in
construction.

Jodel D 18 builder,
Griff