Zephyr1
Elite member
So I know I said I’d be attempting a flight, but my tx conked put so I’m kinda grounded for a little while...it’s all ready for the maiden though
Aero L-39 Albatros - 50mm EDF jet
So I know I said I’d be attempting a flight, but my tx conked put so I’m kinda grounded for a little while...it’s all ready for the maiden though
Grifflyer
WWII fanatic
I don't think so, If someone did make a modular design it probably wouldn't fit, the EDF just fits in the fuse.
That will be really, really cool. Make sure you take a few pictures!!
That's pretty bad, is it still under any kind of warranty?
bracesport
Legendary member
@Grifflyer - I have been following this one - awesome - master craftsman! 
whackflyer
Master member
Just to confirm, y’all are running this bird on 4s for the edf version? I want to build one, but don’t have any 4s batteries, and I’m on a budget. I’ve seen there’s 3s versions of 50mm edf’s with 4800kv fans, would one of those work? I’m clueless about edf’s haven’t ever owned one.
Grifflyer
WWII fanatic
Yes, there running on the 4s version, the 3s fans that I've seen produce less thrust than the 4s version and not enough thrust to have a fun time flying this particular jet.
whackflyer
Master member
Thanks I’ll see if I can get some 4s batteries...
whackflyer
Master member
What size of 4s battery is the best for this bird?
Grifflyer
WWII fanatic
I use a 4s 1300mah 70c lipo
Grifflyer
WWII fanatic
whackflyer
Master member
What kind of flight times are you getting from that?
Grifflyer
WWII fanatic
I fly for 3 min.
whackflyer
Master member
As far as CG goes could it handle a little larger battery? How about the weight side of things?
Grifflyer
WWII fanatic
Yes there is plenty of room to shift the battery around, I don't think the airframe can take much more weight. What size battery are you thinking of?
whackflyer
Master member
Possibly up to 1800 or so. If I’m not mistaken I’ve seen people running 2650s in @Zephyr1‘s f86, so if I build that I want to have some larger batteries to balance it out...
Grifflyer
WWII fanatic
I believe his F-86 has quite a bit more wing area, his wing cubic loading is around 10 while the L-39's is at 15. He does recommend a 1300 for his F-86 so I'm pretty sure you'll be fine.
whackflyer
Master member
Well I ordered a 1300mah 50C 4s, Hyperion G5. Best deal I could find on eBay, cheaper even then the Chinese “Ovonic” batteries... not sure when I’ll get an EDF, but for the meantime I’ve got some free 30a escs and some nice durable 3 blade props so I’ll have some fun with that...
Grifflyer
WWII fanatic
Nice that's a good batt. Are you planning on building V1 or V2?
