www.banggood.com : Easy RC Folding Paper Airplane HM830 - US$28.59
RealBorg
it's amazing how well this flies
especially if mounted to a foamboard
cehteh
for any definition of amazing :D
shaun414
Can't wait for my mobius
Hope its all,i imagined
Also,bought some supplies to make my,own antennas
cehteh
RealBorg: but i think you want some control surfaces
because you loose control in low powered/gliding flight when you want to control it only with motors
RealBorg
do I want them? do I need them?
shaun414
Anyone wanna try my IBMuppet antennas
cehteh
not necessary .. but would make it nicer
shaun414
:)
RealBorg
the control circuit for a quad could certainly be used to control a blimp
cehteh
there is no 'the control circruit' .. its all software each doing things slightly differently
mostly PID control loops
and when the cog and masses are very different to a 'normal' quad you certainly need a lot adjustments
RealBorg
I mean the basic software trying to keep the quad level unless you handle the controls
cehteh
i doubt you can use the controller of a toy quad to stabilize a blimp, since the control loop is not tuned to that
RealBorg
front left propeller would become bottom left, bottom right would become top right
cehteh
in theory its the same, but needs other parameters
RealBorg
the same differential thrust may be applied to a wing
cehteh
sure
the basic idea is the same or at least very similar
but you need access to the knobs to tune the parameters
you know how basic quad stabilization works?
RealBorg
a feedback loop between gyro and motor controls
"turn a quad into a plank" would make an interesting challenge for FT
cehteh
'feedback loop' is a bit oversimplified
but yes .. you get the data from the gyros, feed that into a PID controller of some sort and the outout of the PID gets mixed on the motors
the important part is that the parameters for the PID controler and the parameters for the mixer depend on the vehicle configuration
and if you transform that somhow in flight or (in case you do vertical takeoffs, but at low speed/hovering the wings will have no effect) you need to adjust these parameters
thats the part where you need to have some generic software where you are able to do that, some flight controller from a toy copter where you cant change anything wont do
and i am still oversimplifying ... but if you have access to the software it might work out
RealBorg
I am oversimplifying the plane even more - it's strictly hand launch
cehteh
why that
RealBorg
no thrust vectoring
cehteh
or why dont you just build a normal plane then
RealBorg
leven flight should "feel" to the gyros as lying on the ground
s/n/l/
cehteh
4 motors are less efficent than a single motor
RealBorg
if the plane banks to the left the gyro control will throttle up the motors on the left
shaun414
Lies
The more motors the better
cehteh
lol
RealBorg
if the plane approaches stall and increases angle of attack the gyro controller will throttle up the props above cg increasing speed and bringing the nose down
a dive will throotle up the props below cg bringing up the nose
cehteh thinks that will not work *that* simple
I almost cannot imagine noone ever tried that
cehteh
well props below CG make it hard to land
and when you need to throttle up (or have at least some motors pushing) then you cant glide
when you dive very fast (intentionally) .. the motors need to overcome that too to go up
in some situations it will be a challenge to impossible in some flight situation
thats why i saied you want control surfaces, then each system can augment the other
