This is the talk page for discussing improvements to the Edward L. Hoffman article. This is not a forum for general discussion of the article's subject. |
Article policies
|
Find sources: Google (books · news · scholar · free images · WP refs) · FENS · JSTOR · TWL |
Page views of this article over the last 90 days:
|
This article is rated Start-class on Wikipedia's content assessment scale. It is of interest to the following WikiProjects: | ||||||||||||||||||||||||||||||||||||||||
|
Draft copied from my sandbox. User:Peteschulz210 (talk) 01:02, 3 May 2020 (UTC)
Untitled
editThanks to Fuddle for the help starting Draft and moving practice lines from sandbox. User:Peteschulz210 (talk) 01:04, 3 May 2020 (UTC)
User:Peteschulz210 (talk) 02:24, 8 May 2020 (UTC)
On 28 April 1919 using the "Type A" 28 foot backpack parachute, volunteer Leslie Irvin, flying in a Smith piloted de Havilland DH9 biplane at 100 mph and 1500 feet above the ground, jumped (with a backup chute strapped to his chest) and manually pulled the ripcord fully deploying his chute at 1000 feet.[1]Irvin became the first American to jump from an airplane and manually open a parachute in midair. The new chute performed flawlessly, though Irvin broke his ankle on landing. Floyd Smith filed the Type A patent No. 1,462,456 on the same day. The McCook Field team tested the Type A parachute with over 1000 jumps. These successful tests resulted in the Army requiring parachute use on all Air Service flights.[2] [3] [4]
References
- ^ "An Early History of the Parachute".
{{cite journal}}
: Cite journal requires|journal=
(help) - ^ "Wright State University".
{{cite journal}}
: Cite journal requires|journal=
(help) - ^ Ladino, Marie. "Pulling the Rip Cord". USPTO.gov. Retrieved 7 May 2020.
- ^ "Milestones".