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PLEASE NOTE: Currently we are still only open for Telephone and Internet Orders.
(Please respect our decision not to re-open yet. We want to see how things go over the next few weeks)

At present suppliers are low or out of a lot of Stock, and some deliveries may take slightly longer than usual.

Telephone Hours will be 10am-3pm, Mon-Fri till further Notice. 



Unfortunately this product is no longer available, please try searching for a similar product in case we have re-listed as a special combo or the product has changed.

O.S. OS 65AX MAX w/E-4010A Silencer [L-OS16521]
FREE Delivery on this product!

Designed as a replacement for the long established Max 61FX, the new Max 65AX has all the features of the new AX series, such the same mounting bolt pattern and silencer bolt dimensions, making a direct replacement for most 61 class engines. The real bonus is more power and torque for the same basic external dimensions.

Like all the AX series, cooling has been improved by the use of deep finning on the crankcase and cylinder head combined with the new fin pack shape.

The silencer is effective and a great benefit to flying fields with sensitive noise iossues. Effective silencing is very much part of the AX design philosophy.

Carburation is the usuall OS 'exemplary' standard and very much why OS engines are regarded as the best! That comes from careful design and testing allied to stringent manufacturing standards.

Weight:497.0g (17.53oz) w/o Silencer
Weight:653.og (23.03oz) w/Silencer
Propeller Range:12 x 6, 13 x 6/7, 14 x 6
Displacement:10.63cc (
Bore:24.0mm (0.945in)
Stroke:23.5mm (0.925in)
Power Output:1.75PS @ 16000rpm
Practical RPM:2,500 - 12,000