PPRuNe Forums - View Single Post - Improving Direct Operating Cost (DOC) help please
Old 7th Feb 2013, 19:21
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Bearcat F8F
 
Join Date: Sep 2011
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Ha-ha. We could call the cocktail bar "Fokk This"

There are no outlined rules or details however I assume that for a 4th year Aeronautical Engineering project, the fact that it has to keep flying is kind of a prerequisite.

On the plus side, I spoke the guy that runs this nonsense and he said we are allowed to justify stuff using verbal reasoning, fractions, cost difference etc and do not require the use of a DOC formula alone. At least this makes it slightly more doable now.

WRT the avionics, any upgrades I do should improve DOC just about anywhere unless the plane really does fly only between 2 dirt strips in the middle of nowhere all year long.

But anyway, I would really appreciate some technical knowledge now regarding the following things:

1) Why do aircraft have dual GPS units?

2) What costs (or time) are involved in maintaining something like a GNS 430W

3) Similarly, what amintenance costs would be involved in maintaining a dual flight display unit such as a Garmin G3X

4) How much could it (very roughly) cost to maintain the original F27 avionics?

Any help, hugely appreciated as this sort of info just can't be found in google search
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