MANTARAYA Delta Challenger
Military & Rescue, missions.

MANTARAYA Delta Challenger is an only underwater propelling device, because the diver stays in the wake of that device without pointless efforts, reducing air consumption and turbulence.

THAT BI-TURBO SYSTEM improves the hydrodynamic coefficient of penetration [Ch = Rv= Cv.(Re.K/L)], saves energy, increases the velocity and the autonomy. In addition the maneuverability is exceptional.

MANTARAYA Delta Challenger is an adaptation of the original work MANTARAYA, created in 1992. That only symbolic “Art & Technique concept” insures the visibility on the market place and the worldwide protection according to the Berne Convention.

APPLICATIONS: Military & Rescue, operations. Sportive activities and speed records. The rehabilitation of disabled persons. Diving centres, sub aquatic dance, submarine adventure movies.

THE MARKET POTENTIAL can easily reach up to 4000 devices / year.

ENGINEERING: SOLIDWORKS / RHYNO / INVENTOR FUSION
RAPID PROTOTYPING: www.tredim.it

TWO BRUSHLESS MOTORS 2215-12 + P62 Gear box (4200 continuous W / 8400 surge W).
1.540 Kg http://neumotors.com/Site/Welcome.html

TWO HYPER-TURBINES 160 mm, anti-cavitations diffusers, 5970 rpm maxi.

ELECTRONIC SPEED CONTROL and stopping by reversing the rotation of the motors.

BATTERIES LiPo KOKAM SPLB 7570270, Pack 6S4P: 1420 WH. 7.368 Kg.
2840 Continuous W & 4260 Surge W.

OPTION FOR SPORTIVE ACTIVITIES: ULTRA HIGH POWER LiPo CELLS SPLB 70205130P. 10S2P: 888 WH. 7.08 Kg. 4440 Continuous W & 17760 Surges W.

SPEED: 7 Km/h (500W) and more with the use of a transparent fairing.
AUTONOMY: 2, 5 hours / 500 W. x 3 by meaning of two independent LIPO packs on to the diving belt.
TOTAL WEIGHT: 18, 5 Kg, including one pack of batteries.
DIMENSIONS: 710 x 720/920 (Retractable fins) x 212 mm

The manufacturing cost is reduced by mean of an overall simpler and more efficient structure: Symmetric shell and independent under-water removable batteries pack.

The shells are moulded in two symmetric parts and assembled by epoxy foam (SICOMIN PB 250 / SD 5604).

The LIPO battery pack is replaceable under-water (Patented concept) and moulded according to the RIM process.