7 ms·

That's surprisingly light! Well done. I happened to fall into a flying group that is very serious and they obsess about weight. My personal flying skills are no

That's surprisingly light! Well done. I happened to fall into a flying group that is very serious and they obsess about weight. My personal flying skills are not to the same level, but they are competing in (and winning) several competitions nationally. They've gotten down to 260g (everything but battery) with 12:1 thrust to weight ratio. Definitely a racing machine, no bells and whistles. I like the idea you've got. How sturdy are the arms? We found with trial and error that a straight connection between the motors (think an 'X' and a 'box' overlayed) really improved crash durability.

x0054 11y ago
I am guessing you are talking about Bolt XBR? It's a very awesome frame! I was considering adding webs for reinforcement, and may still add them as an optional extra bolted under the main frame in the front and the back. But the durability should be solid, of course I don't want to say much before I test it properly, I have a motto of under-promise and over-deliver :) What I really wanted to concentrate on in this design is thrust path for the motors. Bolt is pretty good about this, but still not ideal. Many other frames really don't take this into consideration at all. But if you have a prop that develops 1,000g of thrust, but well over 30% or more of the area under the prop is blocked by the body of the quad and the arms, you are not really getting 1,000g of thrust at all. This is also my main objection to tilt rotor designs. I tried to slim down the arms as much as possible while maintaining rigidity, and still being able to place ESCs in the thrust path to keep them cool. Again, I don't want to say much until I build a few final design prototypes and test them though :) If you would like, could you send me an email through my blog. I would love to talk to you more, perhaps see if guys from your group would want to test a prototype when I have a few done.

x0054 11y ago

I am guessing you are talking about Bolt XBR? It's a very awesome frame! I was considering adding webs for reinforcement, and may still add them as an optional extra bolted under the main frame in the front and the back. But the durability should be solid, of course I don't want to say much before I test it properly, I have a motto of under-promise and over-deliver :) What I really wanted to concentrate on in this design is thrust path for the motors. Bolt is pretty good about this, but still not ideal. Many other frames really don't take this into consideration at all. But if you have a prop that develops 1,000g of thrust, but well over 30% or more of the area under the prop is blocked by the body of the quad and the arms, you are not really getting 1,000g of thrust at all. This is also my main objection to tilt rotor designs. I tried to slim down the arms as much as possible while maintaining rigidity, and still being able to place ESCs in the thrust path to keep them cool. Again, I don't want to say much until I build a few final design prototypes and test them though :) If you would like, could you send me an email through my blog. I would love to talk to you more, perhaps see if guys from your group would want to test a prototype when I have a few done.