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oneskyjet
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Trans Caribbean Airways: "the 5th engine jetline"

Sat Jun 25, 2016 1:08 am

Came across an ad from the early 1960s for Trans Caribbean AIrways. Their slogan at the time was "the 5th engine jetline". They flew Dc-8s from JFK to San Juan and a DC-6 from San Juan on to Aruba. Anyone know what the "5th engine" reference was for? Did they count the APU as a 5th engine and decide to use it as a marketing slogan?
 
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longhauler
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Re: Trans Caribbean Airways: "the 5th engine jetline"

Sat Jun 25, 2016 2:03 am

Actually, their DC-8s were not equipped with APUs.

It is probably reference to their DC-8-51s with the extra power of it's fan jet engines. In the early 1960s, "fan jets" were quite a marketing coup over plain old regular jets!
Just because I stopped arguing, doesn't mean I think you are right. It just means I gave up!
 
MD88CLE
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Re: Trans Caribbean Airways: "the 5th engine jetline"

Sat Jun 25, 2016 3:02 am

A quick search yields this, which makes it clear it's about the relative power of the turbojet:

The 4 big Fan Jet engines on every Trans Carib jet give it the speed, power and quiet comfort of five ordinary jet engines.
 
Viscount724
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Re: Trans Caribbean Airways: "the 5th engine jetline"

Sat Jun 25, 2016 11:34 pm

longhauler wrote:
Actually, their DC-8s were not equipped with APUs.

It is probably reference to their DC-8-51s with the extra power of it's fan jet engines. In the early 1960s, "fan jets" were quite a marketing coup over plain old regular jets!


Yes, the under-powered original Boeing 720 became a completely different aircraft when the 720B arrived with JT3D turbofans. It was roughly the same as adding a 5th engine and converted the 720 into Boeing's hotrod of that era. I remember some amazingly short takeoffs on 720Bs, unlike the usually sluggish standard 720s like United's and Eastern's.

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