RE: Tips for first four stroke please
 

Try a Graupner - You'll never go back. Of course, you can always use your old props for stirring paint :D

RE: Tips for first four stroke please
 

What size prop will you put on a Seagull Extra 300S (60) with a ASP 71 Four Stroke engine upfront?

RE: Tips for first four stroke please
 

12x7

RE: Tips for first four stroke please
 

Okay then I guess my friend is using the right prop. He says his plane is slow and says the plane has little vertical now wants to change the prop (he is comparing it to my 61 2 stroke which is on my 46 Edge). Thanx Minn. So if he changes it shouldn't be to far from the 12x7.

RE: Tips for first four stroke please
 

Start with a 12x7. If he wants more vertical, he could try a 13x6

RE: Tips for first four stroke please
 

Why does the 7 drop to a 6 - is this your pitch?

Minn, should that Extra with that engine perform well?

RE: Tips for first four stroke please
 

Yes, the second number is the pitch, Dropping down in pitch is the equivalent of going from 4th to 3rd gear on a car