Search Results for: Surveying equipment
august , and became a dirigible pilot. he was commissioned as a st lieutenant in the officer's reserve corps on december , to date from november . he was placed on active duty on december , . during world war i , he commanded a balloon observation company. he later taught aerial photography and surveying
period[ edit ] due to the post war draw down, mckinley's appointment as captain was vacated and he was made a nd lieutenant in the army air service on september , (to rank from july , ). he was promoted to st lieutenant on april , . [ ] on april , , mckinley resigned from the army to begin an aerial surveying...
https://en.wikipedia.org/wiki/Ashley_Chadbourne_McKinley