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(   4_1/4"   /  11  cm  Diameter  )

AERO PRODUCTS RESEARCH, INC. LosAngeles, California / USA   (1991)
                                              Model » APR  E6-B2 «

The upper picture shows the CALCULATOR SIDE of the Flight Computer
on top of the  OPEN CASE  with the USER's MANUAL  & PLOTTER »PV-5«

The  CALCULATOR  of the computer  consists  of a  special circular
slide rule with  10..100  scales for multiplication  and division.
The associated  third scale  is calibrated in  hours  and minutes.

The picture below shows the WIND SIDE of the Flight Computer right
in a  S K E T C H  taken from the USER's MANUAL ...

The WIND SIDE of the computer  consists of a  rotating azimuth and
a rectangular  SLIDING GRID  that slides  up and down  through the
azimuth.  The  azimuth circle  rotates  freely  and  is  graduated
into 360°.  The transparent portion  is frosted  so that it can be
written on with a pencil.

The  C O N T E N T  of the USER's MANUAL (= An Excellent Primer!)
The  Flight Computer  is made of  aluminum  and  came  in a  blue
soft-plastic case with a (48 pages) User's Manual  and the »PV-5«
IFR Enroute Plotter, made by Jeppesen ...


    Have a look at other Flight Computers, e.g. JEPPESEN CSG-9

                    Historical Remarks ...
© C.HAMANN   11/17/12