Saito FA-40A - 1st Tank (clip) (1 min 34 sec)

First run, very rich break in run, of my nib 40A. This is a short clip of the run. The day's temperature was likely around 72F, iirc.

Engine was running quite cool. I did run it a bit harder near end of tank.
With Hi-Speed at about ~5.5 turns out, and my limiting throttle teavel, it likely never went past 7k rpm per instryction manual.

i bought this engine off E-bay a while back. Finally made a mount for it

This is a nice engine. It is unbelievably small for the power it makes:
-Running Xoar 11x6 wood prop
-10% Powermaster
-New OS F plug (came with Saito SS)
-Engine is make 'C' btw

I noticed a new ignitor battery really helped with starting it.

Saito FA-40A - 2nd Tank (clip) (1 min 29 sec)

Second tank. It was about 63F out, the high for today, Saturday.

We have gone through days of non-stop cold-ish rain lately. One day was as low as 42F thanks to Hurricanes on each side of USA. That's right, our Fall started out around 73F then, within a week, dropped to 42F. Wowzers! It went from Fall to Winter.
It felt nice to sit outside & return to sunny Fall weather

Running full throttle, and very rich.
With Hi-Speed at about ~5 turns out, the engine finally started heating up. Maybe spinning at max 7,200 rpm. My tacho has trouble reading in the shade...

I varied throttle at times and monitored temperature. It runs a bit smoother now and definitely picked up some power (vs initial run).

This engine is tiny and finely crafted--like a jewel. 'It would be a joy to fly in a .25-size plane', i imagined as it ran.
I am used to flying mini and micro foam planes.

BunnyKiller -

I have two of these. They will wind up on a twin (Twinstar) that is being overhauled. The neat thing about these is that Saito made the mounting bolt dimensions match OS 25FX and clones. It's a no-brainer drop in, which is good for me!

Also, they seem to really like an APC 11x5.

Jim

Nice! I have two as well. One is nib, still.

I plan to get flying glow planes next year. My next plane (likely an ARF) may fly the FA-40A...