4 GPS !!!!!!!!!!!!!
How big a helicopter do you fly? Where have they fit all the antennas without getting interference problems with other antennas?????
Sounds like very much overkill.
Perhaps they fitted one but it didnt work and they couldnt be bothered to remove the system, patch up the skin and remove the loom etc. Happened again and again and then on the 4th attempt it worked!!!
I've not come across any corporate jet under JAR 25 that has more than 2 GPS/FMS.
Oh well guess you have a quadruple redundant system
