Oh and exhaust trails aren't the issue either lol, the center of mass is high the center of lift is far forward and the problem is I can't find a spot where it balances well @AstleyIndustries

good luck, go and find modded part packs

Again I can't mod @AstleyIndustries

Ok so CoT:
Use dummy engines (engine with no thrust but have exhaust effect) and a hidden engine that has thrust but no exhaust

It's a tall build and it's hard to centralize the center of thrust @Liquidfox

Size isn't an issue with the wings mostly propulsion @AstleyIndustries

Well actually the device I posted on isn't really android the website just classifys it as android but it doesn't support modding @Liquidfox @AstleyIndustries

What's wrong with it?

Since youre on android:
Try to obtain small scaled wings. They have the lift calculation of normal wings.