The Importance of WAAS with LPV

Mark Wilken – Director of Avionics Sales with Elliott Aviation
www.elliottaviation.com

Traditionally, ground-based landing systems have been the only method for low visibility approaches. Many business aircraft, however, are operated from airports without ground-based systems and are restricted to using non-precision approaches. If your aircraft is equipped with WAAS and LPV you have many more options to get to where you are going safely and efficiently.

There is a common misconception in the industry that WAAS and LPV are one in the same, however, they are two completely different systems.

WAAS, or Wide Area Augmentation System, was developed by the FAA to augment GPS to improve accuracy. Put simply, it is a corrected GPS. It is accurate to about one meter of your actual position. Combined with LPV, it can get you into more airports in a more direct manner. Without LPV, WAAS is just nothing more than an accurate sensor.

LPV, or Localizer Performance with Vertical Guidance, gives you an enhanced database in your FMS GPS and allows ILS-like approaches at airports that do not have an ILS or ground-based system. LPV approaches allow for minimums to be as low as 200 feet.

If LPV approaches are not available at the airport you are traveling, they likely have LP approaches available. LP, or Localizer Performance Approaches, provide precision lateral guidance using the enhanced accuracy WAAS provides. As an example, an LP approach into Telluride, Colorado allow for minims of an additional 460 feet for days when the weather is less than perfect.

Mark Wilken is the Director of Avionics Sales for Elliott Aviation which employs over 40 avionics technicians at their headquarters in Moline, IL. Mark began his career at Elliott Aviation in 1989 as a bench technician repairing radios and quickly became the manager of the department. Mark helped launch Elliott Aviation’s Garmin G1000 retrofit program where the company has installed more King Air G1000’s than all other dealers in the world combined. Recently, he has headed STC programs for the newly-launched Aircell ATG 2000 system for Hawker 8000/850/900, Phenom 300 and King Air 350/B200/B200GT. Mark is a licensed pilot and holds an associate’s degree in avionics and a bachelor’s degree in aviation management from Southern Illinois University.

Elliott Aviation is a second-generation, family-owned business aviation company offering a complete menu of high quality products and services including aircraft sales, avionics service & installations, aircraft maintenance, accessory repair & overhaul, paint and interior, charter and aircraft management. Serving the business aviation industry nationally and internationally, they have facilities in Moline, IL, Des Moines, IA, and Minneapolis, MN. The company is a member of the Pinnacle Air Network, National Business Aviation Association (NBAA), National Air Transportation Association (NATA), and National Aircraft Resale Association (NARA).