SECRET
COR MINUTE SHEET
DATE: 8 Jan 60
REF FILE: S10-136-80/5 (DADR)
VOL 1
Minute (4)
ATSC
Addressee
A review of the estimates on Min (1) indicates that -
Of the five sites mentioned above rather large holes in cover will be opened up should these gap fillers not be installed. Nipigon - 45 x 30 nm (approx), Marathon - 70 x 35 nm (approx), Eaglet River - 75 x 45 nm (approx), Portneuf - 70 x 45 nm (approx), Mt Carleton a triangle 15 x 25 x 30 nm (approx). The gap filled by Mt Carleton is quite small and might be hard to substantiate, this is also true of a number of sites which are less expensive. Eaglet River and Marathon together form a large gap which extends 120 nm in the N-S direction. An alternative to Eaglet River could be the move of Oba 50 miles south-east which would leave a gap 45 x 30 nm approx over Lake Superior. Operationally then, the need for four of the five a/n sites can be substantiated without too much difficulty.
As CADIN is a jointly approved plan and in view of direction not to question the 45 gap fillers this Directorate must concur with CCEs cost estimates.
(EH Evans) G/C
DADR
2-3783