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  1. K

    For Sale Motors and props for big multirotors

    Hi Dennis, I'm really Hi Dennis I am currently writing this from the airport heading back home I am really sorry for the delayed response as I had limited access to internet I am afraid those items are sold already but I have other similiar yet much better condition components that I...
  2. K

    For Sale Motors and props for big multirotors

    Hi I have U8 Pro 100KV T-motors slightly used in very good condition ... run time no more than 30 mins ... they were originally bought for certain project then decided to buy the U10 motors ... All accessories are included ... I also have 28X9.2 " T-motor Carbon prob in very good condition...
  3. K

    Hybrid multi-rotor , gas engine for lift and electric motors for control

    Thanks a lot for the reply ... this is really useful info .. On another note .. there is something interesting I've noticed in this hybrid Quadrocopter and I'd like to share it with you and see if it is really possible During my study of the videos I've noticed that the Radio program used to...
  4. K

    Hybrid multi-rotor , gas engine for lift and electric motors for control

    Although I think it is very difficult to achieve, but my Boss is looking for 2.5 hours duration .. he has deep pockets with too little patience .. also very stubborn when it comes to "it is difficult or cannot be done " ..
  5. K

    Hybrid multi-rotor , gas engine for lift and electric motors for control

    Thanks a lot for the input ... I'll reconsider investing in this concept So MR is simply Multi-rotor ... I got it now :) Khaled
  6. K

    Hybrid multi-rotor , gas engine for lift and electric motors for control

    I completely understand ... and I agree with you Hi Old Man I completely understand ... and I agree with you .. and I apologize for not introducing myself before asking such questions .. 1st of all my forum name is my real name over all the forums I'm registered in .. although some do not...
  7. K

    Hybrid multi-rotor , gas engine for lift and electric motors for control

    Thanks a lot for the inputs gents .. Could you please tell me what you mean by MR ?? I'm researching this idea for a long endurance .. but then again ... like a gent just said a large gas heli will do just fine Khaled
  8. K

    Hybrid multi-rotor , gas engine for lift and electric motors for control

    Hi Please correct me in order to build a hybrid multi-rotor like the one in this video, assume I will use a Naza .. this means I will NOT connect the throttle channel from the receiver to the NAZA throttle input .. but directly to the throttle servo .. This is to save the electric power of the...
  9. K

    100 KV U10 Motors on 12S and 28X9.2" props ... not efficient !!!??

    I like that ... and I enjoyed hovering that roaring beast , it flew with 10 kg payload as if it was not carrying anything at all .. According to Tiger motor specs of the U10 . on octo , 12S, 28" props .. AUW is 36 KG ... and this is only 4.5Kg of thrust per motor , while max thrust is 8.1 KG...
  10. K

    100 KV U10 Motors on 12S and 28X9.2" props ... not efficient !!!??

    I hovered for 7 mins with 10 Kg payload at 2700W / 60A with 10,000 mah 12S
  11. K

    100 KV U10 Motors on 12S and 28X9.2" props ... not efficient !!!??

    Hi I'm really learning new things from all the replies in here ... Thanks a lot to you all gentlemen Okay I flew today for 5 mins ... and put back 2400 mAh back to the 12S 10,000 mah Gens Ace lipo pack I was just hovering about 1 meter from the ground so I can see the watt meter ... I...
  12. K

    100 KV U10 Motors on 12S and 28X9.2" props ... not efficient !!!??

    I'll measure the flight time and amp draw tomorrow and report back ... to be more precise .. Please elaborate more about 8s being more efficient than 12S ... I've seen several efficient 8S setups .. and I thought if I go higher to 12S then I will be more efficient .. Please enlighten me :)...
  13. K

    100 KV U10 Motors on 12S and 28X9.2" props ... not efficient !!!??

    Hi FerdinandK, Your videos were my inspiration for this build ... but for sure I don't have your knowledge ... AUW is about 10.7 Kg including 2 X 12S old Gens ace lipo batteries that are 3.2 Kg for both of them Empty frame is 7.5 Kg Batteries is 3.2 Kg What low c batteries do you recommend...
  14. K

    100 KV U10 Motors on 12S and 28X9.2" props ... not efficient !!!??

    Hi I was under the impression that the U10 100 KV T-motors on 12S and 28X9.2" props .. are the way to go for maximum efficiency .. but I've just maidened my X8 Gryphon Dynamics 1400mm frame using only 12S 10,000 mah for testing and I flew for about 5- 10 mins and the batteries were 3.85 when I...
  15. K

    Can I land at any valid waypoint through ground station software ??

    dronesforgood.ae ..... this is a contest for the best good usage of drones ... and I need to know if my Multi-rotor UAV can land in a certain waypoint .. to claim that I it can do package delivery ... like Amazon ..this is why :) ? I understand why you asked , I'm gad you did since this is my...
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