IFR Enroute Low Altitude Chart, US, from AeroNav

IFR Enroute Low Altitude Charts (Conterminous U.S. and Alaska) provide aeronautical information for navigation under instrument flight rules below 18,000 feet MSL. This four color chart series includes:

• Airways and RNAV Routes
• Limits of controlled airspace
• VHF/UHF radio aids to navigation (frequency, identification, channel, geographic coordinates)
• Airports that have an Instrument Approach Procedure or a minimum 3000' hard surface runway
• Off Route Obstruction Clearance Altitudes (OROCA)
• Airway distances
• Reporting points and GPS/RNAV Waypoints
• Special use airspace areas
• Military Training Routes

(Scales vary from 1 inch = 5nm to 1 inch = 20nm, 50 x 20 inches folded to 5 x 10 inches) Revised every 56 days.

Area Charts, which show congested terminal areas at a large scale, are inclued with subscriptions to any conterminous U.S. Set Low (Full set, East or West sets). Chart L-28 covers the Washington-Boston corridor at a scale similar to an Area Chart. Contours and terrain tints are shown on selected Area Charts. Charts are revised every 56 days.