OVERDRIVE  M2

The OverDrive focuses on maximum reaching speed with increased twist and less back-hand pressure. A lighter weight means improved handling characteristics.

A moderate width sleeve, 7 battens and 3 cams provide draft stability through a huge wind range. Combined with a higher aspect ratio, the OverDrive M2 has impeccable handling characteristics; a lightweight feel, with softer flex.

Smaller sizes (5.5 and down) have 6 battens to increase flex and control for when conditions get extreme. The new OverDrive M2 benefits directly from advances made on the Mach2 development. Increased depth below the boom adds drive and stability whilst the mid and upper leech have been opened more to decrease drag. Flow aligned battens further improve aerodynamics. The resulting performance is explosive acceleration and big numbers on the GPS.

The OverDrive M2 can be run on either RDM masts or SDM masts. The 4.6 is fully set up for RDM with three RDM cams. The sizes 5.0 to 7.8 are setup for SDM. They run one RDM cam (top) and two SDM cams below. The RDM top cam fits and rotates prefect on our Apex shaped masts.

To set up the 5.0 to 7.8 on RDM, simply change the two SDM cams to RDM cams and the sail is fully setup to rig on RDM masts.

KEY DIFFERENCES BETWEEN MACH2 AND OVERDRIVE M2;

SLEEVE WIDTH:
33% narrower than Mach 2 for lower weight and less water retention.

WEIGHT:
Lighter, softer feel

BOOM LENGTH:
10cm shorter on most sizes for less back-hand pressure.

RDM COMPATIBLE:
Compatible with both RDM and SDM masts

 

OVERDRIVE M2LUFFBOOMBATTENSWEIGHTCAMSHEADRECOMMENDED MASTRDM/SDM CAM SETUP
4.638216463.83FIXEDSEVERNE 3703x RDM cams
5.040216763.93FIXEDSEVERNE 4001xRDM(top cam), 2xSDM included. Option to change bottom 2 cams to RDM.
5.541617864.13FIXEDSEVERNE 4001xRDM(top cam), 2xSDM included. Option to change bottom 2 cams to RDM.
6.243218674.53FIXEDSEVERNE 4301xRDM(top cam), 2xSDM included. Option to change bottom 2 cams to RDM.
7.046219174.83FIXEDSEVERNE 4301xRDM(top cam), 2xSDM included. Option to change bottom 2 cams to RDM.
7.849020275.13FIXEDSEVERNE 4601xRDM(top cam), 2xSDM included. Option to change bottom 2 cams to RDM.
8.651221075.33FIXEDSEVERNE 4903x SDM
9.452022075.63FIXEDSEVERNE 4903x SDM
* RDM top cam also works for SDM masts

TECHNOLOGY

KEY FEATURES

/ MONOFILM BODY
MAXIMUM STABILITY AND PERFORMANCE

/ KEVLAR X-PLY LUFF SLEEVE
MINIMAL VERTICAL STRETCH WITH HORIZONTAL ELASTICITY

/ TUBE BATTENS
HIGH PERFORMANCE STABILITY
Severne Gator 2019 - crossover sail
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SEAMLESS HEAD PANEL

This high abrasion area is made from only 1 panel and does not carry any exposed seams, preventing any potential weak point in this area. As a result, seam creep and seam-related failure have been eliminated.

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LEADING EDGE

Tuned entry with a finer leading edge rotation for reduced drag.

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OPTIMIZED AERODYNAMICS

By aligning the battens with the direction of airflow drag has been reduced. Clean panels with minimal seams further improve the aerodynamics.

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DIRECT DRIVE TENSIONERS

DIRECT DRIVE TENSIONERS

The DDT 4 and DDT 5 tensioners directly connect the tube batten to the leech of the sail. This new design eliminates the heavy section of tube that is needed for the standard batten tensioner and being smaller, has superior aerodynamics. It is used on all lower tension battens in the OVERDRIVE M2 and the MACH 2.

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INCREASED MID-LEECH TWIST

INCREASED MID-LEECH TWIST

The mid leech has been opened more to decrease drag. Fast and slippery.

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OPTIONAL CLEW POSITIONS

OPTIONAL CLEW POSITIONS

POSITION 1:

This is the recommended setting and carries the adjustable outhaul fitting. It creates the perfect balance between a comfortable clew height and leech tension. This is the setting that Matteo Iachino and Tristan Algret will use for 99% of their PWA slalom races.

POSITION 2:

This setting is lower and further in. It softens the feel of the sail and may be more comfortable for smaller, lighter riders looking for more control in higher winds.

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PERFORMANCE MONOFILM CONSTRUCTION

Monofilm Construction to maximise performance and minimize weight. Construction mimics the exact sail prototypes that were tested by our racers.

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BOOM HEIGHT REFERENCE

Boom height gauge for ease of reference.

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MODERATE SLEEVE WIDTH

MODERATE SLEEVE WIDTH

Wide enough for performance, the OverDrive M2 sleeve is 30% narrower than the Mach2 for lower weight and less water retention.

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3&4 ROLLER TACK PULLEY

Roller tack pulleys are matched to the sails downhaul requirements and aligned for friction free downhauling and threading ease. Rig your sails with the Severne Hardware Division extensions for function and simplicity.

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RDM CAM CONVERSION

RDM CAM CONVERSION

The RDM Cam is an aftermarket option that converts the larger Turbo GT's and OverDrive M2 for use on a RDM mast. This option increases the access to the sail as many speed converts may already have a RDM mast. Speed sailors may prefer the extra level of mast reliability that the RDM mast gives you.

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AUTO-ADJUST FOOT

Previously we focused on drag reduction in the upper parts of the sail, but with the Mach 2 and OverDrive M2 even the foot sections have been analysed and refined. Less tension on the foot edge combined with more forward oriented shaping allows the foot to twist and auto-adjust.

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SPIDERFIBRE RACE

SPIDERFIBRE

SpiderFibre on the leech of the sail massively increases the perimeter strength and inhibits vertical stretch between the sail panels.

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ACCELERATED LEECH

Automating the dynamic twist has enabled us to remove the Reflex system. The lower leech twist is now pre-loaded to mimic the twist pattern induced by the Reflex batten under load. Significant advantages are simpler tuning, reduced weight, and increased durability.

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SDM CAM V2.0

SDM CAM V2.0

A redesigned SDM cam improves rotation, ease of rigging and allows minimal downhaul settings without risk of the cam popping off.

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SEAMLESS FOOT CONSTRUCTION

A single panel in the foot area with hidden load patches and zero exposed stitching eliminates seam abrasion and seam creep in this high load area. Maximum durability and minimum weight.

UPGRADES 2019
 

 

/ FLOW ALIGNED BATTENS

/ REDUCED WEIGHT

/ IMPROVED SPEED AND ACCELERATION

 

2019 UPGRADES

/ FLOW ALIGNED BATTENS

/ REDUCED WEIGHT

/ IMPROVED SPEED AND ACCELERATION

 

SUPPORT

Download our Overdrive M2 rigging guide by following this link.