Re: TR4A fan 4 or 6 blade?

[Tony Rhodes <ARhodes@compuserve.com>]

Message text written by fred thomas
>T/R 4A had a 6 bladed "Tropicial" fan (Moss pg. 9 # 68 part # 834-010), 
only made for about 6 months<
>>>>>>>>>>>>>>>>>>>>>>
Where in the series of production was the 6 months of production
of the tropical fan?  I presume it was optional.  I also presume
that since it was called "tropical" it puller more air than the 4 blade.

-Tony