Ruag Aviation signed a dealership agreement with Jetcraft to market the HUD Vision Access for the Challenger 604 and 605. Under the agreement, Ruag will sell and install the enhanced flight vision system (EFVS), which includes an Elbit AT-HUD head-up display and infrared sensor. The HUD Vision Access also allows pilots to descend below decision height at many airports (generally 100 feet lower for ILS and LPV GPS approaches with vertical guidance) thanks to FAA landing credits for an approved EFVS, which displays the infrared EVS image on the HUD. So far, the HUD Vision Access system is the only aftermarket EFVS available for the business aviation market; the benefits of lower landing minimums otherwise are available only in new EFVS-equipped aircraft.