ORIGINAL: N2ECW
With no tuned pipes allowed in SPA, it (Hanno) would be of little use in classic pattern flying. No, I'm not trying to tick you off, my friend(s).
What is or isn't classic pattern truly depends upon when one was born, I suppose.
I sincerely doubt that the .65 LA is tuned/timed similarly to the .61SF and is capable of pulling an 11/11 at the same rpm with the same consistency in throttling. Plus you must run lots of "extra" lubrication in order to keep the LA's bushings happy. No, I haven't tried it empiracally, so I could be wrong. But I doubt it.
I'm not trying to be disagreeable this morning. Sometimes I just wake up that way. <G>
Ed Cregger
I hear ya! I guess what engine you use depends on the rules. With Classic Pattern generally meaning the old FAI F3A rules, you would be limited to a .61 engine so the LA would be out. I also doube that the LA would come close to real world performance if an SF or FSR for very long if they are build any where near what the 40 and 46 LA models were!