Can someone aim me towards a modern to older glow prop chart on line?

I have a few 1970's era glow motors that I'd like to use, and need to find modern equavalent propellers for them. They make more noise and breathe a bit more than put out power, and are mounted to a twin to boot.

Wm.

Hi!
What engines sizes are you talking about!
If it's .40 engines anything from a 8x8-12x4 will be fine. Most common sizes are 10x6 and 11x5.
APC , RAM and Graupner Cam-props are good props.

[link=http://www.top-flite.com/accys/topq5000a.html]Top Flite Prop Chart[/link]