I received some emails this morning that offer some updates on NASA 836. The most recent project for NASA 836 has been sonic boom reduction. It was at the Gulfstream Facility at Savannah International Airport to have the "Quiet Spike" equipment removed. The Quiet Spike is a nose mounted device developed by Gulfstream for sonic boom mitigation.
There is an article in the Savannah Morning News about 836's visit that has some great photos of the aircraft (I particularly like the 3rd photo): http://savannahnow.com/node/228414
Mac McCormick, KF4LMT
kf4lmt@comcast.net