Saito 56 Performance (Bench)

Stuka Stunt Main Forum · 4 of 4 known posts recovered

godzilla · Oct 25, 2001 12:51 PM

I have my new Saito 56 bench broken in now (almost a gallon of fuel/approximately 5 hours).

I switched to Bolly 13-6 for comparison to the ST 60. Wow. The Saito will spin the Bolly to almost 10,000 at full throttle. No more than 9,400 should ever be needed for that prop, even at 5 to 5.5 pitches. I used to run the Bolly at 8600 on a ST 60.

The Bolly 13-6 was one of the premium ST 60 props when the ST 60 was in its heyday. So was the 12.5-6.5 Bolly three blade. Somebody ought to has a ton of these props lying around!

The Bolly 13-6 should be a natural for the Saito 56. It was a great prop with the ST 60; the only problem was that is was not enough LOAD and would wind up in the wind. This appears to not to be as important with the 4 strokes. Am I wrong?

The carbon props are just so easy to repitch compared to the wood props. The thrust is typically better also.

You know what’s funny? I have been running my PA 65 around 9600 RPM with the Bolly 12.5-4.5 three blade. I wonder if the Saito would pull that prop also.

The City Smasher

Ted Fancher · Oct 25, 2001 06:34 PM

#1 source

>
>You know what’s funny? I have
>been running my PA 65
>around 9600 RPM with the
>Bolly 12.5-4.5 three blade. I
>wonder if the Saito would
>pull that prop also.

Know what, 'zilla. I think you broke the code.

Ted

godzilla · Oct 29, 2001 10:59 PM

RE: Saito 56 Performance (In Flight)#2 source

Maiden flights Saturday with Dougie Moon at the stick.

Daddy like…

This looks like fun.

The City Smasher

Brett Buck · Oct 30, 2001 12:08 AM

RE: Saito 56 Performance (In Flight)#3 source

>Maiden flights Saturday with Dougie Moon
>at the stick.
>
>Daddy like…
>
>This looks like fun.

I flew Larry "Joey Jr." Fernandez' P-40 this weekend. Ted an I talked him into trying a Bolly 12.25-4.25 3-blade on his OS52 Surpass, instead of the Master Airscrew 12-6 3b. After a few fiddling flights, it ran perfectly steady at a nice 5.3 second lap. This was a huge improvement over the 4.6 second laps, backed way off, and with large speed variations. The run was almost perfectly constant RPM, and the feel was like the 40/46 VF at it's best. The higher revs offset the poor fuel draw from the *grossly excessive* carburetor throat.

Bear in mind, this was one data point in near-ideal conditions, but it was quite impressive.

Brett