Wing area is 87dm^2 (not including flaperons), predicted weight about 7800g with two 4S 10Ah batteries.<br />"Wing cube loading" calculator: <a href="http://www.ef-uk.net/data/wcl.htm" target="_blank" rel="nofollow">http://www.ef-uk.net/data/wcl.htm</a><br />FMS motor thrust tests: <a href="https://www.rcgroups.com/forums/showthread.php?2136362-PAEP-4250-Dyno-Tests-w-Thrust-Tester" target="_blank" rel="nofollow">https://www.rcgroups.com/forums/showthread.php?2136362-PAEP-4250-Dyno-Tests-w-Thrust-Tester</a><br />Two of those on 4S and 16x8 (~100A together at full throttle) seems viable?<br />...<br /><a href="https://www.youtube.com/watch?v=YzgIeGmoNS8" target="_blank" rel="nofollow">https://www.youtube.com/watch?v=YzgIeGmoNS8</a>