Dual Sandel SN4500 EHSI Installation in Lear 35A


Working in conjunction with the team at Jet City Engineering, Five Rings Aerospace have certified the installation of dual Sandel SN4500 EHSIs in a Learjet Model 35A.  This modification was carried out as part of a major avionics upgrade which included installation of a Sandel ST3400 TAWS/RMI (Terrain Awareness Warning System) certified for Class A TAWS operations.