Efficient long range FPV UAV

Made a real life inspired Aleron servo link for this project.
I had printed the old servo links out, they worked fine but the problem was they relied on adhesive to work, and on my aircraft i had used transparent tape over paper as reinforcement so it had 0 hold to it, hence i decided to model a real life inspired servo link with ziptie like behavior, this one doesn’t rely on glue but on the strength of your control surface to hold on, so this ones a lot better and a lot cleaner, the only downside is that it requires a bit of support material to print but that’s okay as aesthetically it looks a lot better, i might make a version that doesn’t require support material if you don’t care about aesthetics so lmk abt that.
also this versions step and 3mf file is aslo available on the github

Made the templates for airofoil, servo horns, motor mount, and the rib template in cad aswell, the rib and airfoil templates have to be traced on cardboard, cut out and have their edges sanded to work properly, motor mounts should be printed twice and there are already way more servo horns than you might need.

Even printed these out on my Anycubic Kobra 2 neo to speed up the build process as soon as i get eligible for building

What if life-saving supplies could reach places of distress without roads, traffic, or human pilots? This project presents a long-endurance autonomous UAV designed to deliver payloads upto 300g using an energy-efficient airframe, autonomous flight planning, and low-cost hardware and really low cost maintenance, most parts of this build are easy to find and the build processes that are used in this aircraft are personally developed worked and tested in real life by me personally.

Built from the ground up as a practical engineering platform, the aircraft demonstrates how modern autonomous systems can make aerial logistics more accessible, affordable, and adaptable for real-world challenges.

The build uses cheap/easily available parts, and every dime serves a purpose in this project, ive linked the github (currently unfinished) on my project page aswell, please check it out and if yall like it then drop a like aswell.

in the images attached, i have made out a flight plan for how it would go in real life, ive ran CFD sims on the aircraft and made a wing profile of 45cm out of thermocol of the SD7037 airfoil to test its stall characteristics to have a better idea about the cruise speed estimation, this testing was done by me sitting in a car with this airfoil outside the window and strapping a MPU gyro to read the angle readings and telling my dad to speed up or slow down.

Currently dont have a pixhawk board, but thought learning to plan a mission wont be that hard, installed mission planner, and now am trying to get a hang of things in this, ill have a servo attached to the AUX port of the pixhawk and ill plan it so the plane reaches X m/s amount of gps speed before dropping the payload and then before X-C m ill drop the payload so that the landing of the payload is as precise as possible here C is the drag coefficient, ill also have to take into account the paracute ill be making out of old plastic bags and how much they will reduce the speed.

Made some realistic changes like adding 2 motors instead of one, estimate weight is around 1.7kgs and ill be using 12 inch fiber props in this build, the battery will be made up of either 3000 or 5000 cells if i manage to get my hands on them, the rear stab LOOKS small but its enough for this build providing 1 vbar ratio, this with differential thrust the aircraft will have insane yaw authority, which can be increased to even more by just moving the thrust motors a little outward on the wing, i have added the pixhawk ESC and my motor models to the document aswell

Changed the entire design from a flying wing to a conventional UAV type design 2m wingspan and 18cm chord length with a SD7037 airfoil payload capacity of around 500g, there’s a dedicated space for the payload, the entire aircraft will be built out of lightweight pharmocol carbon spars and my own special building techniques that uses trash to reinforce the aircraft.

Ive ran CFD sims on this aircraft aswell and im satisfied by the results for now

Starting out as a flying wing UAV design, uses efficent flying wing type airfoils and will have max payload capacity of around 500g, this aircraft will be mostly responsible for delivering medicines to remote areas without stopping, it’ll use a bomb dropping type mechanism with a parachute strapped to the package.

Main aim of this project is to finish everything in as cheap as but as perfect as possible, in india expensive tech doesnt work out, so im making something that people can actually use