L-39 Albatross Blackhorse - RC Groups (2024)

Aug 31, 2014, 07:56 AM

discovery

Registered User

Thread OP

Discussion

Hello from France ! I just made the fifth flight of my new big L-39 and I can't resist to the pleasure of posting the video of that Marvel !

Here is the url to the factory product !

here is the url to the video !

Bye !

JPM.

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Aug 31, 2014, 08:37 AM #2
jetjock50
jetjock50 Registered User	Nice flight, looks good. The camera man did great job as well!! Thanks, Roger

Aug 31, 2014, 07:49 PM #3
sam51401
sam51401 Fly more Foam	I am interested in this plane and as of current will have to order from overseas. Like to find a turbine version of a L39 but limited funds may direct me to this instead so can you pass on your setup info? More video also if you can, looks good and flies light!

Sep 01, 2014, 04:09 AM #4
discovery
discovery Registered User Thread OP	Thanks "jetjok50" ! i 'll tell your congratulations to my cameraman who is 72 old ! @+

Sep 01, 2014, 04:16 AM #5
discovery
discovery Registered User Thread OP	Hello "sam51401" ! In the video, the L-39 is powered by a schubeler 51 HDS and a HET 700/68/1200! the controler is a castle creations edge160HV!The batteries used are Hobbyking Zippy Flightmax 11S 5000mah 45C ! The weight of the aicraft is 5.3kg and the thrust delivered is 4.3kg ! Note that I have removed the inlet ducts and change the exhaust duct by a rolled radiography with the exhaust enlarged to 80mm ! the native ducts were rolled with the rough surface inside.... Note also that this aircraft is flighing as well with a Jetfan 90mm and the same motor and batteries but take 15Amps more ! @+

Sep 01, 2014, 05:56 AM #6
CoolerByTheLake
CoolerByTheLake Do it Right, the first time!	Quote: Originally Posted by discovery Hello "sam51401" ! In the video, the L-39 is powered by a schubeler 51 HDS and a HET 700/68/1200! the controler is a castle creations edge160HV!The batteries used are Hobbyking Zippy Flightmax 11S 5000mah 45C ! The weight of the aicraft is 5.3kg and the thrust delivered is 4.3kg ! Note that I have removed the inlet ducts and change the exhaust duct by a rolled radiography with the exhaust enlarged to 80mm ! the native ducts were rolled with the rough surface inside.... Note also that this aircraft is flighing as well with a Jetfan 90mm and the same motor and batteries but take 15Amps more ! @+ discovery , here's a question for you. You said " schubeler 51 HDS and a HET 700/68/1200--thrust delivered is 4.3kg -Flightmax 11S 5000mah 45C " Then you said the ( Jetfan 90mm and the same motor and batteries but take 15Amps more !) You forgot an imortant part here: So how much thrust does the Jetfan deliver??? Another point is , the JF on the 1200KV motor does better on 12s --( for thrust) it has less blades then the schubeler
	Last edited by CoolerByTheLake; Sep 01, 2014 at 06:01 AM.

Sep 01, 2014, 07:32 AM #7
discovery
discovery Registered User Thread OP	Hello! The jetfan deliver 4.2kg on 11S and 5kg on 12S but it needs 15Amps more on 11S and 25Amps on 12S ! @+

Sep 01, 2014, 08:50 AM #8
sam51401
sam51401 Fly more Foam	Great info and thank you. I have HET 90mm and also EVO rotors to that I was going to install in my A10. Im thinking of a 12s setup or maybe drop to 10s to save a little weight. So what is the reason for removing the inlet ducts??? You went with an open intake and inlet ring instead I assume? Still deciding on whether I get to go with this plane or able to find a turbine instead. Again, thanks and another video please!!
	Last edited by sam51401; Sep 02, 2014 at 06:27 PM.

Sep 01, 2014, 10:50 AM #9
CoolerByTheLake
CoolerByTheLake Do it Right, the first time!	Quote: Originally Posted by discovery Hello! The jetfan deliver 4.2kg on 11S and 5kg on 12S but it needs 15Amps more on 11S and 25Amps on 12S ! @+ With all these numbers, you have dont even said what the amps on the schubeler 51 HDS were.. 15/25 amps more tells me nothing until I have something to comapare it to. How many amps does the schubeler 51 HDS draw on 11s, and 12s And what was the thrust on 12s?
	Last edited by CoolerByTheLake; Sep 01, 2014 at 10:56 AM.

Sep 01, 2014, 11:43 AM #10
discovery
discovery Registered User Thread OP	Sorry ! on the 51HDS 81Amps on 10Sgiving 3.75kg, 90Amps on 11S giving 4.25kg and on 12S,105Amps giving 5kg! All that with inlet ring and no inlet ducts ! @+

Sep 01, 2014, 11:45 AM #11
discovery
discovery Registered User Thread OP	Other videos ! https://www.youtube.com/results?sear...l39+blackhorse

Sep 01, 2014, 12:16 PM #12
CoolerByTheLake
CoolerByTheLake Do it Right, the first time!	Thanks, up till now there hasn't been any data posted that I've seen. I've been using these numbers for the JF90 specs below Same motor similar batteries. This is installed.

Sep 01, 2014, 01:40 PM #13
discovery
discovery Registered User Thread OP	happy to help ! @+

Sep 02, 2014, 06:39 PM #14
sam51401
sam51401 Fly more Foam	Hey Jean I have a fellow flier wanting to know what CG your are set at???

Sep 02, 2014, 08:22 PM #15
EDF Guy
EDF Guy Registered User	Hello, Sam was kind enough to ask for me about the CG location. I have the BD-5J from Black Horse and found the manual's suggest CG was to far towards the tail for good flying. I now have the Black Horse L-39 and will maiden on Thursday. Can you please tell me what CG point you are flying at? thanks, Carl