On Jun 20, 12:45*pm, Bret wrote:
Hi, inhttp://www.sailplanedirectory.com/ndxtype.htm, I see the
notation *"ATC" for some planes and some planes are described as EXP.
Help me out here

Thanks

ATC- ?Type Certification (I presume the A was meant to be an S, for
Standard, and that is actually a typo...)

EXP- Experimental certification

-Paul