RC Slope Soaring in Hong Kong

A forum for rc sailplane pilots
It is currently Sat Nov 09, 2024 7:56 am

All times are UTC + 8 hours




Post new topic Reply to topic  [ 3 posts ] 
Author Message
 Post subject: EPP HandLaunch converted
PostPosted: Mon Jan 29, 2018 2:59 pm 

Joined: Wed Aug 26, 2015 7:01 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~


Attachments:
File comment: this is with Test transmitter

[ Play Quicktime file ] WhatsApp Video 2018-01-23 at 11.33.40 PM.mp4 [ 1.67 MiB | Viewed 16497 times ]
WhatsApp Image 2018-01-23 at 11.31.53 PM.jpeg
WhatsApp Image 2018-01-23 at 11.31.53 PM.jpeg [ 168.78 KiB | Viewed 16497 times ]
Top
 Profile  
 
PostPosted: Tue Feb 06, 2018 10:18 pm 
User avatar

Joined: Thu Feb 26, 2004 3:51 pm
Posts: 3719
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!


Top
 Profile  
 
PostPosted: Thu Apr 26, 2018 5:53 pm 

Joined: Wed Aug 26, 2015 7:01 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


Top
 Profile  
 
Display posts from previous:  Sort by  
Post new topic Reply to topic  [ 3 posts ] 

All times are UTC + 8 hours


Who is online

Users browsing this forum: No registered users and 1 guest


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
cron

RASAIL Home

WindGURU at Ma On Shan, Clearwater Bay and Fei Ngo Shan

Powered by phpBB® Forum Software © phpBB Group