Hey everybody, I am new to rc flight but not to the rc world. I have had 2 old thunder tiger 20 model 7701 in a box for about 10 years . well I am trying to figure out what type of fuel and what size glow plug I need to use . I am looking to build a plain what would be a good starter to go with this motor ? Thanks for the help
Dan

Are those engines NIB or have they been used?

They are used but in great shape

You could check the ACE website for suggestions but I would throw out a guess a long OR short plug should work. I've used plugs that have sat for 10-25 years and SURPRISE: they worked! Guess sitting in a box that long didn't have too bad an effect on them