There is currently a milestone in Vertipedia that shows that first helicopter Type certificate was awarded to the Bell 47B on Mar 08, 1946 (see link below).
https://vertipedia.vtol.org/milestones.cfm?milestoneID=10
Other sources (e.g. the FAA TCDS site do not support this date. The FAA site indicates that a Bell Model 47 received the first Type Certificate (H-1) in May 1946, with the Bell 47B receiving a Type Certificate later. I have also seen another reference from Vertiflite May/Jun 1984 indicating a date of Mar 28 1946 for the Model 47. Can anyone help clarify what is one of the most significant dates in helicopter history?
* Last updated by: comodo15 on 6/11/2017 @ 1:32 PM *
