The 1978 Helicopter Association of America (HAA) annual convention was held at San Diego's Town and Country Resort Hotel next to Interstate 8. The adjacent golf course became a heliport for a few days so helicopter manufacturers could to provide flight demonstrations to prospective customers. This is the second prototype Bell 206L-1 LongRanger II, N16925, powered by a Allison 250-C28 engine, with the single exhaust stack replacing the two exhaust stacks of the Allison 250-C20B powered 206L. This aircraft carries "Experimental" titles. The 206L-II was certified by the FAA on May 17, 1978.

The 1978 Helicopter Association of America (HAA) annual convention was held at San Diego's Town and Country Resort Hotel boarding Interstate 8. The adjacent golf course became a heliport for a few days where helicopter manufacturers provided flight demonstrations to prospective customers and media. This is third prototype Bell 222, N222AX, on the golf course in late January. The prototype Model 222 (N9988K) first flew on August 13, 1976 and the 222 received its FAA Type Certificate on August 16, 1979. This aircraft was later withdrawn from use and its fate is unknown.