CA
3B.
Increase in mapping speed on the macro-economy of the country:
The effects of speeding up, or delaying, a mapping process must be
considered in terms of the macro-economy. In micro-economy, one
strives for the lowest cost of the product (the aerial photography)
irrespective of the country's needs.
In macro-economy, one strives for the optimum fulfillment of the
country's needs, for management and for economic development.
Appreciable budgetary must be invested in development management
and the construction of the country's infrastructure. In mapping for
these purposes, the factor "time" is dominant because the basic
information needed for all planning should be available immediately.
It is fair estimate to assume that the total loss in macro-economy due to
delays amounts to at least 20% of the total development budget
concerned.
Production of additional information:
Any additional information (radar or laser terrain profiling, magneto-
metry, data registered in analogue or digital record, any event observed
during patrol activities and recorded photographically) can be located
by longitude and latitude. The benefit derived from this can be
estimated only roughly but it may be considerable.
Fokker F-27 integrated inertial system
This system is described in the publication “Fokker F-27 survey air-
craft”, Fokker-VFW international B.V. and is illustrated in figure 3.
Basically, it senses, measures and records the six orientation elements
at the instant of each exposure:
position (X, Y), applied to determine the location of each principal point,
and applied to obtain precision survey navigation,
radar height above terrain (Z), and
statoscopic height differences between exposure stations (A Z), applied
to “scale” each photograph and to determine bz,
azimuth angles, heading and drift
verticality angles, roll and pitch (o and 3), which are recorded in a same
order of accuracy as can be done by high precision photogrammetric
instruments.