Delta wing question

Captain Jay

Elite member
Captain Jay
I am a bit surprised that you said the CofG was spot on. There are many variables in a delta so the CofG is simply where it needs to be as a result of flight testing. ;)

I fly a Delta with the EDF right at the back with no problem except the battery has to go well forward to compensate. This does have the benefit it is well forward of the bifurcated inlet duct.
If your delta needs some up elevator to fly then it is at least stable. You can move the CofG back so it needs less up elevator but do so very gradually thoroughly testing each time but beware don't go too far. An unstable delta is virtually uncontrollable without some very clever electronics.

Just as an aside.
Work out what the area of the duct actually is around the motor body. I bet it is close to 90% of the FSA. This means an EDF truly right at the back (i.e. the end of the motor flush with the end of the duct) actually has a reduced area thrust tube without having to do anything! ;)
View attachment 164896
It works for me.
Insteresting. You guys are so much help.
Working it out...
Thx all
 
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