FlyerTalk Forums - View Single Post - Old Timer's Airline Quiz and Discussion.
Thread: Old Timer's Airline Quiz and Discussion.
View Single Post
Old May 4, 2014, 2:58 pm
  #4758  
jrl767
FlyerTalk Evangelist
 
Join Date: Nov 2009
Location: SEA (the REAL Washington); occasionally in the other Washington (DCA area)
Programs: DL PM 1.57MM; AS MVPG 100K
Posts: 21,375
Originally Posted by jlemon
... 47. Also during the early 1960's, United introduced a version of the Douglas DC-8 which they called the "DC-8 Mark IV". What distinguished this model from earlier DC-8 aircraft operated by UA? ...
this would most likely have been the DC-8 Series 50 with JT3D turbofan engines; their first deliveries were turbojet-powered Series 10s and Series 20s (some of which were later re-engined and redesignated)

I have flown on fan-powered N8007U and N8009U (both of which were built as Series 10), and on N8012U (Series 20) with the JT4A smoke and noise generators
jrl767 is offline  
Reply