4 channel Doppler Weather Radar Processor.  
160 Mhz xcv2000e-6 on GV Associates GVA-290 board (2 identical devices).  

This design flew inside hurricanes Gustav, Isidore and Lili in 2002, collecting unprecedented 
dual-polarized radar reflectivity and Doppler data simultaneously at two frequencies

Each FPGA has two channels of processing.  Each channel has a 40 MS/sec AD converter.  The FPGA demodulates to a 10 MHz baseband, does a 200 tap matched filter, and configurable multipulse doppler processing.

With a reported equivalent gate count of 4.8 million gates and the 160 Mhz process clock, these parts needed extra cooling.