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May 13, 2019, 09:26 PM
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Wing a Ding Ding ( my sub 100 gram wing )

Spirit 600mm Wing

A long time ago I made it my goal to build a sub 100 gram flying wing ..
For some reason it became a wall hanger . might have been those DLG gliders .

So today I decided to take it off the wall and go fly ...
Oh the problems !

The FrSky Rx just refused to bind to my transmitter ( yeah , also lost the bind for some reason )
So that ended up being a massive PITA that wasted over an hour of my morning .
Yes, after removing the Rx from the wing I managed to get a bind ..

Some re-assembly later ! and re-mixing functions .
I was ready to go play the CG game ( After all this time - I forgot where it was supposed to CG )
A 300mAh 2s battery seemed to be close .. ( See Pictures )

I went to my CG test area , and gave the wing a Chuck ! , it seemed to be ok ...
Elevator was given 50% Expo , Ailerons had nothing . Flying weight 93.3 grams
300mAh 2s battery ( Still over 8v when I got home )
CG is about 112mm from LE ( measure up against the fuse ) , maybe a little rearward ?

It flies ..
Most of the test flight was 50% throttle ..
There were times the breeze was strong enough to almost take my hat off my head , and at those times throttle had to be increased .
The Wing really got jittery in the strong breeze .. ( Is the CG too far back ? )
It flew well enough in a mild breeze , but I might try a slightly larger 350mAh 2s in the nose .

Over all I have to say the light wing project was a success !
Flying weight was 93.3 grams and the wing flies @ 50% throttle at a very comfortable ( slow ) speed .
It does turn tight when you want it too ( again - maybe a little rearward CG ) .
But in calm conditions it should be very , very , easy to fly .

My nemesis during this test was the wind , at times strong enough to almost take my hat off .
Not great weather for testing , but I had an itch .
Is this wing Noob Friendly .. YES !
Depending on how Noob you are , maybe have some one help with the first flight ..

You should be able to put one of these wings in the Air for under $50
ATM ( Time of Post ) the wing is $23.10 USD
With some careful shopping , you should be able to do it for $50 USD

I would love to see Banggood do a BNF wing for $50 USD ( FrSky - Flysky - DSM )

Anyways , I finally flew the light wing . And it shows great promise .

Part 2 + Flying video
Last edited by old4570; May 21, 2019 at 12:58 AM.
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