<div dir="ltr"><br><div>Hello Piort,</div><div><br></div><div>In my opinion everything depends on the surface extensions. Flying an extension of 500 ha with a multi-rotor drone would be practically unfeasible, would consume many batteries, for those surfaces are recommended fixed-wing drones capable of flying surfaces up to 1000 ha in a single flight, some have up to an hour of autonomy, but these drones are out of your budget, cost more than 2000 $</div><div><br></div><div>If the surfaces are very extensive, it would be better idea to think of satellite images as the colleage said, you could study if you serve the images of Sentinel-2, with resolution of 10m, are free.</div><br><div class="mt-signature"><img src="https://s3-eu-west-1.amazonaws.com/mailtrack-crx/icon-signature.png" width="16" height="14"> <font color="#999999" class="mt-signature-text">Enviado con <a href="https://mailtrack.io/install?source=signature&lang=es&referral=alechamizo@gmail.com&idSignature=23" class="mt-install">Mailtrack</a></font></div><img width="0" height="0" class="mailtrack-img" src="https://mailtrack.io/trace/mail/f073fe675dfdbb22feff9d39fcda93d5f36b978d.png?u=27890"></div><div class="gmail_extra"><br><div class="gmail_quote">2016-12-01 15:46 GMT+00:00 Piotr Kania <span dir="ltr"><<a href="mailto:p.kania@op.pl" target="_blank">p.kania@op.pl</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi!<br>
<br>
I'm sorry if my question is out of the main topics - my current employer would like to buy drone. They would like to use it for "registration" such things as (for example) - small areas without trees in dense forest, that were cut (it's not a national park, but normal typical forest -> so here we have timber harvest etc.); here is link to Google Maps, that shows what I mean -<br>
<br>
<a href="https://goo.gl/maps/iEPchbrTYyQ2" rel="noreferrer" target="_blank">https://goo.gl/maps/iEPchbrTYy<wbr>Q2</a><br>
<br>
Normally I (or someone else) must walk with gps receiver, then digitize that "holes" in qgis. The idea is to use drone for that - and here is my question - what would you recommend? - I know the max. acceptable price is about 2300 usd, but it's better to assume 1200 usd. I think my employer would be already happy if such "drone" just make aerial photos that can be used for mapping, I don't think that my company would like to have some 3d data (DEM, DSM).<br>
<br>
Thanks for any hints<br>
<br>
<br>
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