Helicopter hovers with full load

Title (Dublin Core): Helicopter hovers with full load
Subject (Dublin Core): en Technology; en Reconnaisance
Article Title and/or Image Caption (Dublin Core): title: Helicopter hovers with full load; subtitle: New-tupe flier makes several vertical ascents held captive like ad observation balloon
Contributor (Dublin Core): WM. H. Hunt (writer)
Language (Dublin Core): eng
Date Issued (Dublin Core): 1921-06
Is Part Of (Dublin Core): Popular Mechanics, v. 36, n. 1, 1921
pages (Bibliographic Ontology): 828-830
Rights (Dublin Core): public domain
Source (Dublin Core): google books
References (Dublin Core): helicopter
Archived by (Dublin Core): Marco Bortolami; Marco Bortolami (editor)