===== Overview =====

==== Comparison of search approaches ====

How does the search operation from vessel, plane and with a drone compare? This document also includes a discussion about the camera angle of view and ground resolution calculations.

{{:sw-areacalc.pdf|Friedrich Beckmann, Searchwing - Search Area Calculations, January 2019}}

==== Requirements ====

After some experience with the vessels where the drone is supposed to be used I have put together some
requirements for the drone.

{{ ::sw-requirements.pdf |Friedrich Beckmann, SearchWing - Requirements, May 2020}}

==== Weight, Dimensions and Power ====

The weights and the dimensions of the X-UAV Mini Talon drone with the payload and the
power consumption.

{{ ::sw-weight.pdf | Friedrich Beckmann, SearchWing - Weights, Dimensions and Power, May 2020}}

==== Impact of weight, drag and speed on range ====

How does weight, drag and speed impact the range of the drone?

{{ ::sw-range.pdf | Friedrich Beckmann, SearchWing - Flight physics for dummies, November 2021}}

==== Books ====

[[https://soaneemrana.org/onewebmedia/MECHANICS OF FLIGHT BY A.C KERMODE.pdf|A.C. Kermode, Mechanics of Flight, Pearson 2006]]

[[https://ntrs.nasa.gov/search.jsp?R=19760003955|T.A. Talay, Introduction to the aerodynamics of flight, NASA Technical Report NASA-SP-367, 1975]]

[[https://onlinelibrary-wiley-com.ezproxy.hs-augsburg.de/doi/book/10.1002/9781118352700|Mohammad H. Sadraey, Aircraft Design - A Systems Engineering Approach. Wiley, 2013]]

==== Images per Mission ====

As described in "Searchwing - Search Area Calculations" page 4, at 550 m attitude a vertical field of vision (image) is 495 m long (Table 4). For covering boots at the surroundings of an image an overlapping of 5 % is needed, so that approximately every 470m an image is taken.

With a avg flight speed of 13,8 m/s the drone is moving to a new image every 34,06 seconds. This means with a mission time of 1 hour we shot approximately 106 Images. An image has a avg size of 1 MB, so every mission produce approximately 106 MB of images per hour, per Camera.

Raspberry Zero W can transfer images over Wifi with 4,46 MB/s, so 23,77 seconds is needed for transmitting the images to a laptop.

==== Dataflow Drone with Data downlink ====

{{ ::dataflow.jpg?1300 |}}