Sandwich: my little (and really cheap) cargo drone

Hi this is my little cargo drone, it can lift about 2000g and the maximum flight time is about 50 minutes, I also have a site so if you want just click the link, take a look and subscribe to the newsletter https://www.sandwichdrones.it/ 

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Comment by Pascal Fust on July 6, 2017 at 2:07pm

Ciao Nicolai,

mi piace molto la tua intensione, volonta e (naturalmente) anche il tuo concept. Bravo !! Po dare qualque informationi tecchnichi supplementari della drona?

Comment by Nicolai Valenti on July 7, 2017 at 6:10am

Hi Pascal, thank you for your words, on the site, there are a few specs https://www.sandwichdrones.it/specs/    but I will give you some other information, the drone without battery has a weight of 700g, each motor can lift about 800g, and by adding batteries in parallel you can fly how much you want (obviously if you add batteries you will have less cargo weight) each motor have a consumption of 12 A (for the cheapest version) or 5 A (for the more expensive version that will cost about 100$ more, this version is now under construction) I think a modular battery system is a good solution so you can select how much you want to fly and how much io need to lift, we hope to finish soon the prototypes and start for commercial production, if you want to stay in contact with me and my little project you can sign up my newsletter http://eepurl.com/cUJnJr  and if you have any other question can write here or at this email nicolai.valenti@gmail.com   If you have any suggestions for new drone versions or changes I will be happy to hear them.

Comment by Subatomic on July 8, 2017 at 10:39am

Show us a video of these claims, or it didn't/doesn't happen. 2kg of usable lift, 50 mins flight time, 40km range, excuse me if just a tad bit skeptical. It's some HobbyKing motors on wooden frame with a show box on the bottom. (eye roll)

Comment by Nicolai Valenti on July 8, 2017 at 11:25am

Hi subatomic, glad to hear your comment, what I'm working on is a drone with a modular battery system (more flight time means less cargo weight, in fact, I wrote that the maximum lift is 2 kg and maximum range is 40 km) my actual motors have a usage of 12 A and a thrust of 770g per motor you can simply calculate the flight time with every battery with this formula: battery (A / usage A) X 60 = flight time in MINUTES these are really cheap motors but I'm developing a drone with sunnysky motors that with 30 A battery (you can choose the battery to mount obviously) can fly for 60 minutes with a usable lift of 2kg all at the same time without sacrificing flight time for weight, I will not link my motors because I want to sell it one day but with a really simple google search you can simply find my components, at this moment I'm working on the navigation system (gps multiwii) and I don't have a video of my drone flying for 50 minutes, but I've made some tests with a cargo box of 2 kg, I have a small video of that and some photos that I will publish today or tomorrow, thank you for your comment, if you have any suggestion please write to me (I know you are skeptic but I will try to convince you, if you want to see if you are wrong or right you can see my future post's here, ask me at this email nicolai.valenti@gmail.com or simply sign up to the newsletter of my project http://eepurl.com/cUJnJr)

Comment by Nicolai Valenti on July 8, 2017 at 11:26am

*(battery A / usage A) X 60 = flight time in MINUTES

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