Sapac Typhoon Eurofighter

[JieZ]

Hi forumers,I have a quetion for EDF gurus here.I am interested in the Typhoon jet.I have a 3850kv motor.I want to ask if can i use the 3850kv motor?Instead of the recommended 4300kv motor.What is the difference?

Thanks.

SAPAC TYPHOON EUROFIGHTER:
Material : FOAM / Wing Span: 950mm / Wing area: 18sq.dm
Wing Loading:36g sq.dm / Weight: 620 grams
Length: 1000mm / Fan Included: 64mm EDF Fan / RadioRequired : Min 4 channels, 4x8gram servos, 1 ESC (not included)
Recommended Lipo : 3S 2200mAh
Recommended ESC : 30A
Recommended Motor : 4300KV Inrunner

[Warbird]

Hi JieZ,

this really depends on the motor, it's true specs and on the battery you are using. KV alone only tells you at what RPM the motor will turn per volt without load. Ultimately you will also need to check if your motor can take the load/current resulting from installing it in the EDF fan.
You would need to provide more info on your motor.

In general however I assume that your motor will provide less power on 3S then the motor indicated below on the recommended 3S pack (simply based on KV).

The Typhoon is rather heavy and especially if you want to ROG you need all the power you can get. Unless you can use your motor with 4S (provided it can take the current and voltage) you should think about upgrading the motor or even better use a 70mm fan with matching motor instead.
You will have much more fun with this kind of setup.

cheers,
Eric

[SPHB]

err... pardon me for being such a newb but what is ROG?

[Warbird]

Ground take off

[SPHB]

O.o
so weird how come the abbreviation is ROG

[romihensem]

hmmm

if i'm not wrong its Running On Ground... dont know whether its correct or not

[JieZ]

O.o
so weird how come the abbreviation is ROG

Rise Off Ground i guess

[jansonfinn]

O.o
so weird how come the abbreviation is ROG

Rolling On Ground

[SPHB]

oh oh! i get it now
thanks

[buckman]

Rise Off Ground i guess

Yes it's Rise Off Ground, as opposed to a hand launch. In some cases, it has evolved to Roll Off Ground and also commonly used in the U.S.A. as Rise Off Grass.

Whichever the case, it's just another way of getting your plane into the air.

[Raven]

Hi forumers,I have a quetion for EDF gurus here.I am interested in the Typhoon jet.I have a 3850kv motor.I want to ask if can i use the 3850kv motor?Instead of the recommended 4300kv motor.What is the difference?

Thanks.

SAPAC TYPHOON EUROFIGHTER:
Material : FOAM / Wing Span: 950mm / Wing area: 18sq.dm
Wing Loading:36g sq.dm / Weight: 620 grams
Length: 1000mm / Fan Included: 64mm EDF Fan / RadioRequired : Min 4 channels, 4x8gram servos, 1 ESC (not included)
Recommended Lipo : 3S 2200mAh
Recommended ESC : 30A
Recommended Motor : 4300KV Inrunner

Smalle EDF needs higher KV motor.

EDF64 ah? advice to get 35amps or even better 40amps ESC. I am using 30amps on my 4300kv F-15 and sometimes throttle happy it will cut. I dont think the Euro-F is as forgiving as the F-15. ESC cut only "bye bye" liao.

[simonwoo]

AUW 620g - personally I think you can still fly with the 3850KV motor but it will be a slow flyer. But try at your own risk ya

30A ESC is also a bit too close for comfort, in case you get any inefficient component, you might overshoot that amp draw. I'd also say at least 40A to be safer...

[Babylon5]

Hi forumers,I have a quetion for EDF gurus here.I am interested in the Typhoon jet.I have a 3850kv motor.I want to ask if can i use the 3850kv motor?Instead of the recommended 4300kv motor.What is the difference?

Thanks.

SAPAC TYPHOON EUROFIGHTER:
Material : FOAM / Wing Span: 950mm / Wing area: 18sq.dm
Wing Loading:36g sq.dm / Weight: 620 grams
Length: 1000mm / Fan Included: 64mm EDF Fan / RadioRequired : Min 4 channels, 4x8gram servos, 1 ESC (not included)
Recommended Lipo : 3S 2200mAh
Recommended ESC : 30A
Recommended Motor : 4300KV Inrunner

Hi JieZ,
I am not sure if it is the same EDFas the one I have tested(as there are many version or copies of the 64mm 5 blade EDF)

I have tested a 5blade 64 EDF that runs a 4.3KV (20-40 -4.3KV)motor for a friend.
This EDF has a seperate intake lip.
During the test, the current is 32-33amps on 3S lipo.
Anyway after 3 flight the blade depart. I think the blade cannot take the high KV. In addition the motor does not have a heat sink and it
run very hot.


If the motor quits during flight , there is a good chance that the ESC is inadequate to handle the current or is there is just too much heat built up in the ESC.

Your query on 3850KV motor ...yes it will probably work .

Usually a lower Kv motor will run at lower power for the fix number of lipo cells(there are exception depending on the motor characteristics). Whether there is sufficient thrust after changing to lower KV motor for your Typhoon jet remains to be seen or tested.


Another similar 64mm 5 blade is the RICCS. This one comes with a fix intake lip and a 3.9KV/V motor with heat sink.
This one runs around 25-27amps on 3S lipo. So far I have made over 10 flight and EDF is still running OK.

Like most affordable EDF, you need to balance the blade to ensure that everything is OK before trying out. In addition the specified current may be understated, so you need to check out the running motor current during testing , don't always believe everything that is written on the box or manuals .


I hope this info will help you.

Cheers and all the best.

[wireless]

Hi forumers,I have a quetion for EDF gurus here.I am interested in the Typhoon jet.I have a 3850kv motor.I want to ask if can i use the 3850kv motor?Instead of the recommended 4300kv motor.What is the difference?

Thanks.

SAPAC TYPHOON EUROFIGHTER:
Material : FOAM / Wing Span: 950mm / Wing area: 18sq.dm
Wing Loading:36g sq.dm / Weight: 620 grams
Length: 1000mm / Fan Included: 64mm EDF Fan / RadioRequired : Min 4 channels, 4x8gram servos, 1 ESC (not included)
Recommended Lipo : 3S 2200mAh
Recommended ESC : 30A
Recommended Motor : 4300KV Inrunner

Hi Bro,

I recommend this motor from Sky Hobby, cost only $35, very powerful.



TOPBAND OUTRUNNER 4900KV
For 64mm DUCTED FANS
(with connectors 3.5mm pre-soldered)

TOPBAND AE2810D-01E
Dimensions:22x10mm
Shaft: 2.3mm
Voltage(v): 11.1
KV: 4900
Weight:61g
No load current : 3.1A
No load RPM: 54400
Load current(A): 36
Load RPM: 39000
Thrust(g): 660
Test condition: 64mm Ducted Fan

I am using it on my F4 phantom and F-15, lots of thrust, take note that full throttle draws 44 amps on a 6 blade GWS prop. I am using the Turnigy 40A on F4 cos I don't fly at full, and 60A ESC on my F-15.

I already bough 4 of these..hehe..

[JieZ]

Hi Bro,

I recommend this motor from Sky Hobby, cost only $35, very powerful.



TOPBAND OUTRUNNER 4900KV
For 64mm DUCTED FANS
(with connectors 3.5mm pre-soldered)

TOPBAND AE2810D-01E
Dimensions:22x10mm
Shaft: 2.3mm
Voltage(v): 11.1
KV: 4900
Weight:61g
No load current : 3.1A
No load RPM: 54400
Load current(A): 36
Load RPM: 39000
Thrust(g): 660
Test condition: 64mm Ducted Fan

I am using it on my F4 phantom and F-15, lots of thrust, take note that full throttle draws 44 amps on a 6 blade GWS prop. I am using the Turnigy 40A on F4 cos I don't fly at full, and 60A ESC on my F-15.

I already bough 4 of these..hehe..

I have a 45amp ESC and i think a 5 blade fan on my F15.More blades = higher amp draw or less blade = higher amp draw?