As part of a piece of coursework, I need to be able to calculate the total wetted area of the Saab Gripen 39A.(adsbygoogle = window.adsbygoogle || []).push({});

Firstly, I have found several conflicting definitions of the term 'wetted area', although I now believe it is the sum of the projected areas from the top and bottom, port and starboard, and front and back views. Is this correct?

Secondly, before I set to work with a general arrangement drawing and start scaling up lengths to calculate areas, etc. is there an analytical way I can do this? I've collected basic data for the Gripen such as Lift coefficient and cruise and stall, drag coefficient at max speed, max. thrust, aspect ratio, wing loading, etc. I'm sure there must be a way to do it using a selection of the data we've been told to find because it clearly says 'calculate', and somehow basic geometry doesn't seem to involve much calculation. Also I can expect large errors doing it geometrically (which ideally I don't want).

Thanks very much,

Chris

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# Wetted Area

Can you offer guidance or do you also need help?

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