Recent content by TechDIYaspirant

I'm not here to argue with you. But I'm genuinely curious to know the following. How is someone who is not versed in the relatively rarefied field of aerospace engineering supposed to know before asking the question what is or is not valid source material? The plane in the video flies does it...

I see your point.

If at any point it appears that I am making a claim of any type please don't read it as such. I'm no engineer so my description of these problems is based on my rudimentary understanding of fluid dynamics and material science, as a result I'm not writing with precision but just with the language...

See my reply to your initial post.

Would transpiration be greater than evaporation? I suppose the added surface area of the plant would account for that?

What about a swept back design? Apologies for the crude sketch? Also see another post with attached pic for more detailed description.

Well you caught me I didn't watch the video. I was just using the thumbnail as a visual reference. I've seen other model aircraft of the same design that seemed to have better performance but I'm not sure I can find it now. As to your questions I'll try to answer them as succinctly as possible...

I imagine squashing the ring into an oval whose shortest radius was perpendicular to downward pull of gravity would reduce some of the drawbacks you mentioned.

I've seen a number of recent videos on lake Meade's declining water levels and as I have an amateur interest in aquaponics I've wondered if a large scale project might go some distance towards tackling at least one source of water loss, evaporation. Probably the biggest water draw is downstream...

By annular wing I mean something what is seen in this video. I'm fascinated by this design because it seems to lend itself to fluid entrainment and a greater lift profile for a smaller radius of wing. They are said to be quite stable.

https://www.amazon.com/dp/B081STBZ8F/?tag=pfamazon01-20 I'm pretty sure this is the model I have. at least the dimensions and wrapping are identical (though the connections differ slightly. I'm guessing they are 20ah based on this.

I'm looking for a way to use these batteries that is safe and also useful. I've looked into buy inverters to turn them into portable battery packs but am out of my depth and don't want to create a device with serious potential fire hazards without thoroughly understanding the ins and outs and...