Bell: YOH-4A

General data

Producer info

Pictures

Video clips

Data sources

Names and dates
Project name
D-250
Project name (english translation or spelling)
D-250
Factory original model designation
Model 206
Market original model designation
YOH-4A
(...)
HO-4
Market model designation (english translation or spelling)
YOH-4A
(...)
HO-4
Also known as
Ugly Duckling
Also known as (english translation or spelling)
Ugly Duckling
First flight date and time
1962-12-08
Config info
Rotorcraft typeHelicopter
0.04