OS Engines 15612 55ax ABL 40k E3071 Engine

OS 55AX

First off I haven't started this engine yet so my impressions are just out of the box. I've been into RC airplanes since 1981. Engine manufacturers have come and gone. My first two engines were a K&B .61 w/pump, great engine. The other was an OS Max .35 and another great engine. Both purchased in 1981 and OS is still building great engines. My new 55AX is much lighter than the .35 and is flawless in looks. Can't wait to put it in my Sig Kadet Senior Sport.Read full review

Verified purchase:  Yes • Condition: new • Sold by: rchobbyexperts

Very nice

Was mailed out with in a couple hours of placing order.showed up in very good shape .runs very well thank you

Verified purchase:  Yes • Condition: pre-owned • Sold by: drvohs

Tune It

ran a full tank of 10% nitro, had some low idle adjustments but now running great.
getting ready for a test flight

Verified purchase:  Yes • Condition: new • Sold by: johgild_0

new os 55

Os max 55 good power plant

Verified purchase:  Yes • Condition: new • Sold by: rchobbyexperts

fantastic quality, powerfull engine

Verified purchase:  Yes • Condition: new • Sold by: omnimodels

great engine

great little power house

Verified purchase:  Yes • Condition: pre-owned • Sold by: propilot1981

In between size

I’d buy bigger.... power similar to 40 two cycle

Verified purchase:  Yes • Condition: new • Sold by: horizonhobby

Motor bueno

Tiene potencia y el mantenimiento es poco.

Verified purchase:  Yes • Condition: pre-owned • Sold by: exorbitant-sell...