Also, compared to larger airfields, smaller airfields are less likely to have hard-surfaced runways.

Originally the airfield was grass-surfaced but hard-surfaced runways and a perimeter track were laid down early in 1943.

Airports generally have long, fully lit, hard-surfaced runways, full air traffic control, and navigation and landing aids.

An asphalt perimeter track and several hardstands for aircraft parking followed and in 1941 hard-surfaced runways were put down.

The airfield had three 2,100' active hard-surfaced runways and five local axillary airfields for emergency and overflow landings.

They consisted of hard-surfaced runways and taxiways, concrete parking areas and permanent buildings for the support units and barracks.

China had built a hard-surfaced runway on Spratly Island and had reinforced some stronger reefs and atolls around it enough to create naval support facilities.

In 1942, the Army constructed a base and hard-surfaced runways and designated the airport as Groton Army Airfield.

Conditions became so bad that on 21 April, the serviceable P-47s were flown to RAF Ibsley, three miles to the north which had hard-surfaced runways.

The location of each airport and presence of control towers is indicated with a circle, or with an outline of the hard-surfaced runways (if over 8,069 feet long).

With the increasing use of hard-surfaced runways in the post-war years many Spitfires were either manufactured, or retro-fitted with, larger mainwheels which were of a "three spoke" pattern.

Plans called for three hard-surfaced runways (four were eventually built), however time was of the essence in the construction of the base, as the air defense of Dutch Harbor was dependent on them.

A hard-surfaced runway, runway landing lights, a primitive aircraft approach control (a siren blew once for landing, twice for takeoff), and improved buildings demonstrated that the transportation of mail, commodities, and passengers by air was here to stay.