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jcflyer · 01-25-2015, 05:31 PM

Has anyone figured out where the best location is for these ducts? Like how far up or down the canopy it should be for the best cooling!!!

wblombard · 01-26-2015, 01:57 AM

5cm from the front of the nose

Vinger · 01-26-2015, 06:16 AM

The nose position we all tried on the TDR and did not work really well as we know that airflow at speed is nearly at 90deg to the NACA duct, better position would be to put one each side of the canopy just in fromt of the motor angeled up at about 20-30deg.

Just my two cents!

jcflyer · 01-26-2015, 06:27 AM

Do you guys have any pic's?

wblombard · 01-26-2015, 06:49 AM

Quote:

Originally Posted by Vinger

The nose position we all tried on the TDR and did not work really well as we know that airflow at speed is nearly at 90deg to the NACA duct, better position would be to put one each side of the canopy just in fromt of the motor angeled up at about 20-30deg.

Just my two cents!

Peter, your comment is noted, however..just by adding the naca duct 5cm from the nose I had a drop of over 15 degrees in temps...however my climate is very different from any body out there. 5cm from the front is directly on the kosmik..it was perfect...

I also installed a heat sink..there are pictures under "what did you do with your banshee" now I cant remember the exact figures but those two items dropped the temps by almost 20 degrees.

Vinger · 01-26-2015, 06:54 AM

I see even Gert on the Diabolo site recommends it either side. Any hole that brings airflow into the canopy will lower temps, but I think for least drag and most effective cooling it should be two either side angeled upwards to be inline with airflow at speed, that is the way the NACA duct works at it's most efficient. There is also a large suction from the bottom back of the canopy so it helps.

http://www.minicopter.de/catalog/pro...59&language=en

wblombard · 01-26-2015, 07:02 AM

Quote:

Originally Posted by Vinger

I see even Gert on the Diabolo site recommends it either side. Any hole that brings airflow into the canopy will lower temps, but I think for least drag and most effective cooling it should be two either side angeled upwards to be inline with airflow at speed, that is the way the NACA duct works at it's most efficient. There is also a large suction from the bottom back of the canopy so it helps.

http://www.minicopter.de/catalog/pro...59&language=en

My TDR insane canopy has them like that...infact I have three NACA ducts...LOL Dubai heat is intense.

No wonder my banshee is slower than my DS

all that blady drag...Just joking Peter

jcflyer · 01-26-2015, 06:52 PM

Ok guys thanks ordered two ducts today!!!

ArguZ · 01-27-2015, 07:34 AM

Judging from my Diabolo experience I will not use them anymore.
Sure, Denmark is very different from Dubai, so I got not more than 5 degree of a difference.
And that is logged temp, not measured one.
But I also think my motor is so much better with the new winding, so temps under the hood are under control.
I wish i could say that about the weather right now..

jcflyer · 01-27-2015, 05:59 PM

Quote:

Originally Posted by ArguZ

Judging from my Diabolo experience I will not use them anymore.
Sure, Denmark is very different from Dubai, so I got not more than 5 degree of a difference.
And that is logged temp, not measured one.
But I also think my motor is so much better with the new winding, so temps under the hood are under control.
I wish i could say that about the weather right now..

So what temps were you having before and after?

jcflyer · 01-30-2015, 01:40 PM

OK in looking at the position for installing the naca duct, 5cm from the nose would put it below the esc and just above the packs. Don't know if that is gonna work? Any comments? I am running a kosmik 200 with a fan!!!

Vinger · 01-30-2015, 10:16 PM

Maybe a little higher and a bit more forward, the idea is to get air moving inside the canopy and if the entry point is to far back it will still stagnate inside the front portion of the canopy. Flow should be past hot components and out the back/bottom of the canopy where it is open and suction are created.

jcflyer · 02-01-2015, 03:46 PM

Well so much for adding a naca duct!!! I added one made some flights today and there was just about no change!!! The esc showed about a 5* cooling but the the motor was the same as before adding the duct!!! Gonna try adding some hole else where in the canopy...

jcflyer · 02-08-2015, 04:48 PM

I did some more testing and I am getting about an 8* reduction in temps on the esc, so it is working for the most part.

Oat Insane · 02-11-2015, 07:43 PM

https://www.helifreak.com/showthread.php?t=681551

01-25-2015, 05:31 PM	#1 (permalink)
jcflyer Registered Users Join Date: Jan 2011	Naca Duct Has anyone figured out where the best location is for these ducts? Like how far up or down the canopy it should be for the best cooling!!! __________________ Helicopters Don't Fly - They Beat The Air Into Submission Logo 500SE Minicopter Diabolo 700 Banshee # 45 700 LE and 850

01-26-2015, 01:57 AM	#2 (permalink)
wblombard Registered Users Join Date: Jul 2011	5cm from the front of the nose __________________ William Blake Team Kontronik TDR1, Banshee 850 # 22 Diabolo 700

01-26-2015, 06:16 AM	#3 (permalink)
Vinger Registered Users My HF Map location Join Date: Sep 2007	The nose position we all tried on the TDR and did not work really well as we know that airflow at speed is nearly at 90deg to the NACA duct, better position would be to put one each side of the canopy just in fromt of the motor angeled up at about 20-30deg. Just my two cents! __________________ Henseleit TDR, TDR2, TDF, TDS, TDSF Kontronik, Scorpion ESC, iChargers, VBar, VControl Old hand at Planks Peter

01-26-2015, 06:27 AM	#4 (permalink)
jcflyer Registered Users Thread Starter Join Date: Jan 2011	Do you guys have any pic's? __________________ Helicopters Don't Fly - They Beat The Air Into Submission Logo 500SE Minicopter Diabolo 700 Banshee # 45 700 LE and 850

01-26-2015, 06:54 AM	#6 (permalink)
Vinger Registered Users My HF Map location Join Date: Sep 2007	I see even Gert on the Diabolo site recommends it either side. Any hole that brings airflow into the canopy will lower temps, but I think for least drag and most effective cooling it should be two either side angeled upwards to be inline with airflow at speed, that is the way the NACA duct works at it's most efficient. There is also a large suction from the bottom back of the canopy so it helps. http://www.minicopter.de/catalog/pro...59&language=en __________________ Henseleit TDR, TDR2, TDF, TDS, TDSF Kontronik, Scorpion ESC, iChargers, VBar, VControl Old hand at Planks Peter

01-26-2015, 06:52 PM	#8 (permalink)
jcflyer Registered Users Thread Starter Join Date: Jan 2011	Ok guys thanks ordered two ducts today!!! __________________ Helicopters Don't Fly - They Beat The Air Into Submission Logo 500SE Minicopter Diabolo 700 Banshee # 45 700 LE and 850

01-27-2015, 07:34 AM	#9 (permalink)
ArguZ Registered Users Join Date: Dec 2011	Judging from my Diabolo experience I will not use them anymore. Sure, Denmark is very different from Dubai, so I got not more than 5 degree of a difference. And that is logged temp, not measured one. But I also think my motor is so much better with the new winding, so temps under the hood are under control. I wish i could say that about the weather right now..

01-30-2015, 01:40 PM	#11 (permalink)
jcflyer Registered Users Thread Starter Join Date: Jan 2011	OK in looking at the position for installing the naca duct, 5cm from the nose would put it below the esc and just above the packs. Don't know if that is gonna work? Any comments? I am running a kosmik 200 with a fan!!! __________________ Helicopters Don't Fly - They Beat The Air Into Submission Logo 500SE Minicopter Diabolo 700 Banshee # 45 700 LE and 850

01-30-2015, 10:16 PM	#12 (permalink)
Vinger Registered Users My HF Map location Join Date: Sep 2007	Maybe a little higher and a bit more forward, the idea is to get air moving inside the canopy and if the entry point is to far back it will still stagnate inside the front portion of the canopy. Flow should be past hot components and out the back/bottom of the canopy where it is open and suction are created. __________________ Henseleit TDR, TDR2, TDF, TDS, TDSF Kontronik, Scorpion ESC, iChargers, VBar, VControl Old hand at Planks Peter

02-01-2015, 03:46 PM	#13 (permalink)
jcflyer Registered Users Thread Starter Join Date: Jan 2011	Well so much for adding a naca duct!!! I added one made some flights today and there was just about no change!!! The esc showed about a 5* cooling but the the motor was the same as before adding the duct!!! Gonna try adding some hole else where in the canopy... __________________ Helicopters Don't Fly - They Beat The Air Into Submission Logo 500SE Minicopter Diabolo 700 Banshee # 45 700 LE and 850

02-08-2015, 04:48 PM	#14 (permalink)
jcflyer Registered Users Thread Starter Join Date: Jan 2011	I did some more testing and I am getting about an 8* reduction in temps on the esc, so it is working for the most part. __________________ Helicopters Don't Fly - They Beat The Air Into Submission Logo 500SE Minicopter Diabolo 700 Banshee # 45 700 LE and 850

02-11-2015, 07:43 PM	#15 (permalink)
Oat Insane Registered Users Join Date: Aug 2010	https://www.helifreak.com/showthread.php?t=681551 __________________ Email: InsaneCanopy@hotmail.com

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