在1992年12月10日,法兰克·罗宾逊先生(Mr.Frank Robinson)从美国联邦航空局官员手上接过了R44的型号认可证书,从而写下了美国当今轻型直升机发展史上新的一页。 罗宾逊公司在领取直升机型号认可证书方面独占熬头。在过去几十年中,只有罗宾逊生产的轻型直升机被授予型号认可证书。而所有其它轻型直升机,包括无尾桨直升机及涡轴9发动机直升机在内,都只是基于在过去原有的型号认可证书之上延续发展的,而不是单独领取的。 On December 10, 1992, Mr.Frank Robinson took the model number R44 from the FAA officials and wrote a new chapter in the development history of today’s light helicopters in the United States. Robinson company in the helicopter model approval certificate exclusive. In the past few decades, only Robinson-made light helicopters were awarded type approval certificates. All other light helicopters, including the tail rotor-free helicopters and the turboshaft 9 engine helicopters, are based on a continuation of the original type approval certificates of the past and not on a separate basis.