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Date: April 2015

This is an evolution of my previous designs but using a very rigid frame to get rid of any possible frequency coupling, and in any case minimize levels of vibrations. The design shows a 161Hz natural frequency of arms/legs against 80Hz of excitation (for a 1.5KgAUW). This design criteria is the oposit of most ususal designs having excitation above frame resonances (and harmonics).

This waranty that any increase of payload mass up to 3000Kg+ is well covered by the frequency gap. For 3Kg AUW excitation grows up to 108Hz, still well below frame resonances. The price to pay is a bit more of frame weight and mass (not too much), but it really worth!

It has been tested with both PID and QUATOS control very succesfully.

Details:

  • Motors: TM3508 700kv
  • ESC32V2
  • Propellers: TM 12×4
  • Arm tubes: 25mm x 1mm carbon
  • Dry weight: 1.1 Kg
  • Flight time: 25 min with 5000mA, 4S
  • ACC levels < 1m/s2

Files for 3DPrint available to share. Send me a PM

DSC_0150p

DSC_0153p

Q5 ext 2

This page was created on 16-Apr-15 by Angel. Last modified on 26-Oct-15 by kinderkram.