The Schempp-Hirth Discus B is a modern single seat aircraft. It can be loaded up with water for competition flying, and is the fastest most efficient flying glider in the fleet.
NOTE This is a different version of the C4 from what's in XP. Operation manual for the SDI C4 Competition glide computer. Study this before you fly, DO NOT try to figure it out when you are flying. The C4 is similar to a Cambridge LNAV but a little more advanced and easier to follow (unless you already have an LNAV. Take some time studying and take some notes before you use the computer. File Size 767KB
Filename sdi_c4_competion.pdf
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