This is a pulse jet engine.  I have never seen it in action so selling as not working for parts only.

I  am sure it will work again in the future when it has had a full work over by an expert.

I have included some extra pictures for you to see all the parts. You can see there is a little damage on the alumium

intake. I take it is for starting the fuel injection system. Can be corrected.

Any questions please email me.