Re: MD-80 tailcone

Date:         10 Jun 97 00:35:00 
From:         Bob Mann <>
Organization: R.W. Mann & Company, Inc.
References:   1
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Hans Jakobsson wrote:
> I have a question regarding the "new" tailcone on the MD-80 series. When
> did it first appear on any MD-80's and how was it changed - was it simply a
> matter of changing the emergency exit/tailcone during a longer stop or was
> more advanced engineering needed?

My understanding is that the "beaver tail" was developed and deployed on
deliveries after (approx.) 1988, to solve a fuel burn over guarantee
problem and to enhance directional stability (yaw-related).  Some
retrofits (e.g. AA) were accomplished, but obviously not all were
- Bob Mann
  R.W. Mann & Company, Inc.
  office 516-944-0900,  fax-7280