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 Post subject: EPP HandLaunch converted
PostPosted: 29 Jan 2018 02:59 pm 

Joined: 26 Aug 2015 07:01 pm
Posts: 8
Ehlo,

This is my 5th plane, this time i decided to convert a hand launched glider to a RC with with a 30MM EDF fan in Wingeron Configuration,

Maiden flight was a bit shaky as the support spar wasn't fixed in properly and wasn't holding the wings properly in place.

Specs as below,
32" wingspan,
300Mah 3s
5 blade 30mm EDF with 14000kv
2 x 9g servos for the Wingeron config
10inch 5mm CF support spar,
*and a VERY Sharp box cutter... it is absolute hell to cut the foam using a dull blade.
Flying weight appx 290-310gms

I plan on adding a cheap Betaflight F3 board for auto stabilization as i am not very confident in my flying skills. for the same reason i also chose an EDF to avoid any kind of personal or property damage.

all thoughts and comments are welcome~


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PostPosted: 06 Feb 2018 10:18 pm 
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Joined: 26 Feb 2004 03:51 pm
Posts: 3639
Location: Hong Kong
Are you sure it is setup as a flying wing?
There should have a tail elevator, isn't it?
I guess if there is a long tail, the elevon setup for delta wing is not effective at all, it would be impossible to fly!


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PostPosted: 26 Apr 2018 05:53 pm 

Joined: 26 Aug 2015 07:01 pm
Posts: 8
oops, sorry for late reply,

Yes, it has an elevator, initially setup did not work well so i had to add an elevator. the maiden and succeeding flights showed that it was nose heavy, i had to modify the Elevator cut out to fit in a Bolt with Nut which was adjustable allowing for minor field CoG adjustment.

in the end after all the adjustments to facilitate CoG, i realized that a 30mm EDF is not enough for this plane... it cannot glide well on its own and has difficulty maintaining altitude, addition of FPV camera and a 600mw vtx killed it.

My next build will focus on a nose mounted Propeller at least a 5045 prop with 3 blades or a 6040 2 blade prop with 1860 motor and 1000mah 3s lipo.

Cheers


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