RE: SCREAMIN' DEMON / JETT46
Well, I didn't get the launcher built yet, but it's on the way. I flew this thing just once to get it clocked.
The results were so-so, but at least the 8x8 prop was pulling it's weight for the given rpm.
158 mph and 20,700 rpm.
This was the umpteenth run on a R5 plug, so the compression must be set pretty low.
I have to wait for a lathe drive belt to show up before a new head can be turned out.
Unless there is some kind of explosive rpm jump just lurking around the corner with more experimenting, it's beginning to look like the Webra 50 is a "9X8" type of engine.
For the sake of comparison I'd like to know how much exhaust timing the OS46DF has and how well it turns a 8x8.