Re: India:747/Tu154 collision +TCAS

Date:         25 Nov 96 06:18:51 
From: (John Wright)
Organization: Me at home with my cat
References:   1 2 3 4 5
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On 17 Nov 96 20:04:01 , Karl Swartz wrote:
>>Are you sure 747-100s were built with RB211s ?
>>I thought only JT9Ds were available until the -200.
>Read carefully, paying extra attention to the series -- the accident
>aircraft was a 747-168B, not a 747-100.  Subtle, but significant.
>The only place I've ever seen this sub-series mentioned other than in
>passing is in the British publication Airplane.  Volume 1 Issue 7 has
>an article on the 747 and under further variants says
>   "In 1978 Boeing introduced the Model 747-100B as an updated re-
>    placement for the Model 747-100 with strengthened structure and
>    more powerful engines."
>Can anyone shed more light on the 747-100B?

"Boeing Aircraft since 1916" (Peter M. Bowers) lists only Japan Air
Lines (5 aircraft, -146B), Saudi Arabian Airlines (8 aircraft, -168B)
and Iran Air (1 aircraft, -186B) as customers for the -100B. First
delivery listed as Feb. 8th, 1979. (A total of 14 aircraft, not many
compared to 167 -100s and 323 -200Bs)

It is described as follows:

"An improved 747-100 announced in September 1977, with reinforced
structure, later series P&W JT9D engines, and options for several series
of GE CF6 and RR RB211 engines, features already incorporated in the
pre-existing 747-200B. Allowable taxi weight increased to 753,000 lb."

John Wright