Avantair Gulfstream?

Avantair has a Gulfstream??

http://flightaware.com/live/flight/VNR15

flightaware.com/live/flight/VNR850 is a funny one too

VNR15 is our IAI Astra. Tail # is N157GA, but we already have a 157SL and they can’t both be VNR157, so they use 15. The Astra is mostly used for supplemental lift.
VNR850 is the TBM used by management and sometimes used for MX transportation.