Arrow Shark Billet M8 Stern Drive-Brilliant Red
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Billet M8 Scale Drive-Red
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Price: $598.00

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We offer group purchase on this item, please email us for the pricing detail.

Introduction of Arrow Shark 2013 Billet M8 Steerable Drive- Brilliant Red

Arrow Shark Hobby is especially proud to announce the release of our new M8 steerable stern drive. Following on from our highly successful MC611 drive, this latest design features new metallurgy and even more precise machining for internal strength and reliability along with a superb external finish that will add both eye-appeal and performance to your boat.
The M8 is a near-scale version of the trophy-winning full size Mercury Racing M8 drive that has achieved domination in the unforgiving world of offshore racing. Also matching its full size equivalent, the Arrow Shark M8 can handle left or right hand rotation props and is ideally suited to twin installations for ultimate performance.
With strengthened gear-sets in advanced alloys, the M8 can take engines rated up to 10hp. Add your choice of red or black anodizing for the upper units over a shining silver lower unit, and the M8 is an irresistible choice to enhance the transom of your next boat.

The Arrow Shark M8 steerable drive was inspired by the latest full-size Mercury Racing Dry-Sump M8 Drive. This is used by the very top offshore racing teams and has built a reputation for bullet-proof operation under the most extreme conditions. That reputation is one we aim to reproduce with our near-scale version for gas-powered RC boats.

The Arrow Shark M8 drive is precision-engineered with CNC-machined components that are anodized in brilliant red or jet black with shining silver for the lower unit gear casing and skeg.
The lower unit is machined from 7075 aluminum alloy for durable performance. More than six hours CNC-machining is required to achieve the close-tolerance internal specification and the visually superb external finish.

The M8 gear set is not machined from just standard hardened alloy, but from alloys made with a compacting process of powder metallurgy; this is the same technology used for gears in full size automotive transmissions.

The gears have thicker and stronger teeth designed to permit engines up to 10hp to be used for blistering speeds. As well, the gear design allows for counter-rotation when you go for the ultimate and fit twin M8 drives on your boat.
The M8 has no less than nine ball-bearings and one thrust bearing to provide the best possible support for drive shafts. This results in ultra smooth operation and negligible power loss through the drive train.

The M8 has an exclusive design for the stainless steel prop shaft barrel which enables it to be screwed in and out for easy removal and maintenance.

The innovative design of the M8 prop shaft barrel assembly, and of the top gear input shaft assembly, prevents either oil leaking out or water leaking in during operation. The top gear input shaft takes a standard 1/4 inch flex shaft with a squared end for easy connection to your engine.
Precise gear engagement in the M8 delivers smooth performance at both low and high speeds whilst minimizing wear.
The design for gear installation on the hardened shaft enables the gears to be easily installed without them having too loose a tolerance whilst in operation.
The newly designed M8 back cover allows a 9mm stuffing tube to be easily inserted until it neatly sits against the front of the in-built bearing; the latter then helps protect your flex shaft from wearing when turning the M8 to steer your boat.
The upper casing design of the M8 allows simple fitting of a Tie-Bar for twin M8 installations; and the M8 can handle right or left hand rotation props without any modifications.
The upper section of the M8 has an inlet for easy oil-refilling to lubricate the upper gears; when not in use, the inlet is sealed with an M5 hex nut.
The base of the M8 has been cleverly reduced in size compared with our previous MC611 drive. This suits a wider range of hull designs as well as making twin installations easier to set-up.
The M8 is very light for its size; this offers significant benefits when setting the correct CG for your boat.
To assist you to accurately locate and drill mounting holes for an M8 in your boat's transom, we include with each drive a laser cut wooden template.
Every M8 will be well packed in a custom foam box to insure no damage during shipping.
Boat Rigging below done by one of our dealers , Chip's R/C boat center Pembroke Ma. U.S.A.
You can reach him at 1 781 293 9462  for twin M8 electric power set up tips.

Gallery

M8 Owner Manual

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