Hobbyking Jetiger

[Nesal]

Hi guys,
Been wanting an EDF Jet for a while and Im finally set on getting one, I recently crashed my Nitro Spacewalker due to loss of battery in flight which of course didnt end too great. Where I fly is flat BUT the ground is compact dirt with little rocks, so I immediately ruled out anything not hand launched (can you hand launch an f-18? just wondering).
What im getting is a Hobbyking Jetiger, here you go:
http://hobbyking.com/hobbyking/store...dProduct=10358
I have a couple questions:
First of all, a lot of people have reported burnt out motors on it, it has a 4000kv inrunner, can you please direct me to a decent replacement on hobbyking? or should I just go ahead and get a whole 64mm EDF unit, this one specifically: http://hobbyking.com/hobbyking/store...d__252W(4300kv)
Will that be ok being 4300kv? Easy change out once my original motor goes?

How about this motor? http://hobbyking.com/hobbyking/store...idProduct=4195

Or this one? http://hobbyking.com/hobbyking/store...hless_Inrunner

As I said before I will be landing on compact dirt with little rocks, is that ok? Would I be better off landing in some tall grass?
Since this is a flying wing what mode or mix do I need on my Dx6i? the Delta setting? Is that hard to setup? How does it work? If for example I want up and right what happens? Both elevators go up but the right one goes up a little more?
What run times can I expect on 1300mah batteries? 5 min?
Im familiar with brushless setup on cars, what happens when the lipo runs out? lipo cut off kicks in and leaves me enough power for servos?

Thanks for the help guys!

Read more: http://www.rcuniverse.com/forum/m_98...#ixzz0umzKnjis

[babylon5]

Yes Nesal. if it is a 4KV inrunner motor , it is likely to burn sooner or later.
Change it to a suitable outrunner motor of around 4KV or a better motor.
At 4Kv motor , the current drawn is 26amps ( I assume the fan is a 64mm EDF)so use at least a 1800mah 3S lipo.
Enlarge the battery compartment so you can fit the larger batteries and if necessary add weight to the tail if nose heavy with the larger battery packs to get the correct c.g.

Forgot about the 1300mah batteries that comes with the kit , they will die sooner or later.The current drawn is too high for this puny batteries to perform properly.

Cheers and all the best.

Cheers

[babylon5]

Hi Nesal the motor you selected are 20mmx30mm are just too small and current rated for the 64mm EDF.Its not suitable.
You need a bigger motor that can handle around 22 amps or more. Since the 64mm EDf allows you to put in a 24mm diameter you should select a 24x40mm siize inrunner at around 3.9-4kV with around 22-30amps rating
Better still get a suitable outrunner motor that can fit into the EDF see link

http://www.hobbycity.com/hobbycity/s...dProduct=10986

This out runner motor 4KV rated at 22amps and is design for 55/64mm EDF.
You have to order the correct motor shaft diameter that suit your EDF


You can go up to 4.3Kv but you will require a minimum 40amps ESc and a 2200mah 3S lipo. Also check the motor shaft diameter can fit into the EDF unit.

Just a friendly advise do not go to 4.8Kv or higher KV motor on the 64mm EDF as the current drawn will be over 50amps.
Assuming the Blade survive, however, motor, batteries may not survive with this set up.


all the best.