DX-6 there are 3 subtypes ( 2 piece drone, 1 *spacecraft) 

Spacecraft DX-6 https://eol.jsc.nasa.gov/SearchPhotos/photo.pl?mission=ISS044&roll=E&frame=45576&fbclid=IwAR2e7lIvigSYNazfpFBTGi4P-AZweb8jQD4kMJDKJrOjFhZWSupKqSzF81g  NASA Photo IDISS044-E-45576 2015.08.10

.

.

.1.) DX-6 type

Photos included in the UFO report from the September 27, 1965, sighting in Swan Lake, NY. (Records of Headquarters U.S. Air Force, National Archives) https://prologue.blogs.archives.gov/2018/04/23/ufos-man-made-made-up-and-unknown/

.

.

.External reconstruction open object (6-element)

.2.) DX-6 type 

3.) DX-6 type

.

.......................................................................................................................

4.) National Archives Identifier: 68405 Local Identifier: 342-USAF-31135 Avrocar Continuation Test Program and Terrain Test Program, 06/01/1960 - 06/14/1961 (UAP-DX-6 type detect) ...

.................................................................................................................................................

5.) One of New Zealand's biggest mysteries and one of the world's best documented UFO cases is the Kaikoura sightings in 1978. Nearly 40 years later, the amazing events are still unexplained. The sightings were confirmed by radar visual sightings -- and also filmed in color aboard a Argosy freighter aircraft flying south from Wellington to Christchurch and back again on the night of December 31 1978.

Brief analysis: