For those of you who may get or while waiting for the YS 110 or an OS 91 theres another option for 90-110 size pattern planes . It's the new OS 120 AX (still side exhaust[]). If you need additional info just go to www.singahobby.com. Below are the specs.


Displacement: 19.96 cc
Bore: 30.4 mm
Stroke: 27.5 mm
RPM: 1800 ~ 9500 r.p.m
Output: 3.1 ps / 9000 r.p.m
Weight: 647 g (without silencer)

For me that sounds like a perfect match for the 90 sized planes. I wonder if they will be available in the states? Do you know what the price is through Singapore Hobbies?

-Mike

Wow, that looks nice, and all engines should have that muffler. PLEASE PLEASE send to US

According to GP, the AX 120 will show up in their system in approx 2 weeks so you can check for availability and price.
Gordie

The 46 AX has no ring. I wonder if the 1.20 went over to a ring at that size?

As regards the bearings, I make it a standard practice to swap in a Boca Stainless bearing before I run an OS these days. OS tends to use "same" size bearings in a lot of their motors so I am expecting that this will an easy to obtain bearing set.

Regards,

Eric.

Eric,

I get my stainless OS bearing from the Memphis Bearing supply. It took the guy behind the counter about 2 minutes to find the right size and saved about $20 off the Boca price - not including shipping either. . . You may want to check your local bearing dealer for bearings. . .


Keith

A RE 2-stroke would have been nice

Two new options in the 90-120 motor segment before Christmas then.

O.S. 120 AX and Saito FA-125A AAC

O.S. 120 AX

Displacement: 19.96 cc
Bore: 30.4 mm
Stroke: 27.5 mm
RPM: 1800 ~ 9500 r.p.m
Output: 3.1 ps / 9000 r.p.m
Weight: 647 g (without silencer)

Saito FA-125A AAC
http://www.horizonhobby.com/Shop/ByC...rodID=SAIE125A

Type: 4-Stroke
Displacement: 1.25 cu in (20.52 cc)
Bore: 1.24 in (31.7 mm)
Stroke: 1.02 in (26.0 mm)
Cylinders: Single AAC
Total Weight: 24.69 oz (700 grams)
Engine (Only) Weight: 21.87 oz (620 grams)
Muffler Weight: 2.89 oz (80 grams)
Crankshaft Threads: M8 x 1.25 mm
Prop Range: 15x7 - 17x6
RPM Range: 2,000 thru 10,000 rpm
Fuel: 10% - 30% nitro Synthetic mix
Mounting Dimensions: 152 x 60 x 126 mm
Muffler Type: Cast
HP: 2.2
Cylinder Type: AAC
Carb Type: 2 Needle
Crank Type: Dual Ball Bearing

Hmm Just waiting for YS