On Wednesday, January 8, 2014 8:03:54 AM UTC-8, wrote:
I suspect there are many pilots of experimentals who forget to submit anything...

Good point, Bruno! However, it bears mentioning that not every experimental sailplane is subject to the requirement for the yearly program letter. Unless specified in the operating limitations (and I have never seen such a requirement), it only applies to Experimental, Racing and Exhibition, and does not apply to Experimental, Amateur-Built.

Thanks, Bob K.