wich one should I choose tri or quad?

[jobbzz]

My mate has been flying TriCopters for some time . . until the last one sunk in a lake . . but that's another story.

saw that already on your youtubechannel

 

[voipmonkey]

well i have both and when i can keep them in the air they are great

 

[jobbzz]

I have start making a price list and my first question raises what are the best motors for a quad below 25usd? or are all motors below 25$ crap?

for esc I would like to go for turnigy plush (I read that that were of the best on the market?)

 

[colorex]

I have start making a price list and my first question raises what are the best motors for a quad below 25usd? or are all motors below 25$ crap?

for esc I would like to go for turnigy plush (I read that that were of the best on the market?)

Well, the DT750's are very much recommended for RCExplorer type tricopters, I don't see the difference with performance in a quad - around $11 each. They have low Kv (750kv) and high torque.

And yes, the Turnigy Plush are very reputable.

 

[jobbzz]

they look thin but that doesn't matter?

and is 750kv not to low?

 

[colorex]

they look thin but that doesn't matter?
and is 750kv not to low?

Well, if you check out the specialized motors for multicopters on HobbyKing here:

http://www.hobbyking.com/hobbyking/store/__503__501__Multi_Rotors_Parts-Motors.html

you'll see that they have even less kv. They are even slower. That, according to RCExplorer, allows them to change RPM much faster, and they'll be more stable. If I my calculations are correct (someone correct me if I'm wrong) then lower Kv will need a higher pitched prop (slow-fly prop) and that will make the yaw faster.

By thin I assume you mean flat - this is good because then they'll have higher torque. Torque is the force that makes it keep spinning even if you take off the power.

 

[jobbzz]

Well I made a list with possible motors so can any of you tell which one is the best for a quad copter?

NTM Prop Drive Series 28-30A 750kv / 140w

www.hobbyking.com/hobbyking/store/__16229__NTM_Prop_Drive_Series_28_30A_750kv_140w.html

Turnigy D2836/11 750KV Brushless Outrunner Motor

http://www.hobbyking.com/hobbyking/store/__12922__Turnigy_D2836_11_750KV_Brushless_Outrunner_Motor.html

Turnigy L2215J-900 Brushless Motor (200w)

http://www.hobbyking.com/hobbyking/store/__14737__Turnigy_L2215J_900_Brushless_Motor_200w_.html

hexTronik DT750 Brushless Outrunner 750kv

http://www.hobbyking.com/hobbyking/store/__6247__hexTronik_DT750_Brushless_Outrunner_750kv.html

This is just a quick list didn't go through every motor on hobbyking so if the best motor misses on this list please let me know.

 

[glydr]

I'm rolling DT750s on my Tri. Should fly this weekend.

 

[colorex]

I'm rolling DT750s on my Tri. Should fly this weekend.

+1. I'm using those as well. Haven't been able to run them up, I don't have a working ESC yet.

 

[jobbzz]

I made a shopping-list for my quad

please let me know what your thoughts are and if I have something wrong or if I miss some part please let me know and does anyone have suggestions for props?

I am also interested if I have the right batteries on the list.


here we go:

shopping list quad copter

motor hexTronik DT750 Brushless Outrunner 750kv x 5
http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=6247

esc TURNIGY Plush 30amp Speed Controller x5

http://www.hobbyking.com/hobbyking/store/__2164__TURNIGY_Plush_30amp_Speed_Controller.html

kkboard HobbyKing Multi-Rotor Control Board V3.0 (Atmega328 PA)

http://www.hobbyking.com/hobbyking/store/__21977__HobbyKing_Multi_Rotor_Control_Board_V3_0_Atmega328_PA_.html

Battery Turnigy 3600mAh 3S 30C Lipo Pack (DE Warehouse) x 3

http://www.hobbyking.com/hobbyking/store/__14340__Turnigy_3600mAh_3S_30C_Lipo_Pack_DE_Warehouse_.html

Heatschrink
http://www.hobbyking.com/hobbyking/store/uh_viewitem.asp?idproduct=3832&aff=61689

Heatschrink
http://www.hobbyking.com/hobbyking/store/uh_viewitem.asp?idproduct=13839&aff=61689

Connector xt60

http://www.hobbyking.com/hobbyking/store/uh_viewitem.asp?idproduct=9572&aff=61689

Connector 3.5mm bullet

http://www.hobbyking.com/hobbyking/store/uh_viewitem.asp?idproduct=68&aff=61689

Wires red silicone 16awg x 5

http://www.hobbyking.com/hobbyking/store/uh_viewitem.asp?idproduct=9681&aff=61689

Wires black silicone 16awg x 2

http://www.hobbyking.com/hobbyking/store/uh_viewitem.asp?idproduct=9680&aff=61689

Wires 10CM Male to Male Servo Lead (JR) 26AWG (10pcs/set)

http://www.hobbyking.com/hobbyking/store/uh_viewitem.asp?idproduct=21758&aff=61689

Batterystrap

http://www.hobbyking.com/hobbyking/store/uh_viewitem.asp?idproduct=17410&aff=61689

with approx 75$ shipping costs that comes on a total for spending by hobby king $348.45 but I need some aluminium booms and some wood which I get in a local store which will also be 50$ so that makes a total of $398.45


note I have listed 5 motors/esc so I have a spare one

 

[jobbzz]

I already saw that I forgot this one

http://www.hobbyking.com/hobbyking/store/__10412__Servo_Extention_Lead_420mm_5pcs_bag_.html

but has anyone suggestions or is this list complete=