Rothe's Grob Twin Astir
Here are some documents on the glider you might wish to peruse:
Airworthiness checklist
Conversion factors
Flight log and weight & balance
Variometer manual
Page 9 and 10 of flight handbook (emphasis)
The entire Flight handbook
(2.3mb
PDF
)
Knowledge quiz
(here is
the quiz in docx - Word 2007 - format
)
Here's a photo of Frank and Randy landing the Grob. Stop drooling.