MAH 690mm Symmetrical Night Carbon Main Rotor Blades [MAH690N]

MAH 690mm Symmetrical Night Carbon Main Rotor Blades
[MAH690N]

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This is a set of MAH 690mm Symmetrical Night Carbon Main Rotor Blades. These are high performance rotor blades for the mid-size electric helicopters. Featuring the classic MAH visible carbon fiber weave bordered by white gelcoat, these blades are extremely rigid. Carbon fiber laminate construction creates an extremely rigid blade, increasing helicopter performance. All MAH rotor blades are matched by center of gravity and overall weight.

MAH blades have always been well known for their appealing esthetics. The trademark carbon fiber weave bordered by white gel-coat contributes to both form and function. Showcasing the black carbon fiber weave is an important finishing design goal. When static, the blade is quite attractive, yet when in motion the white gel-coat borders create a highly visible blade disc. This is very important from both an orientation and a safety standpoint.

MAH blades are designed with an emphasis on 3D flight performance. In order to achieve crisp and responsive flight characteristics the blades must resist span-wise flexing and twisting. Each blade is created with 6 layers of hand made carbon fiber laminate to satisfy this requirement. The interior structure of MAH main rotor blades consists of six primary components.

Bass wood root / bolt reinforcing insert in blade root
Fixed brass bushing inside bass wood to accept blade bolts
Balsa main spar
Balsa trailing edge spar
Lead weight, impregnated into carbon fiber laminate
Steel wire, attached to blade bolt structure and lead weight

MAH blades incorporate a revolutionary steel safety wire retention system. This assures a high level of safety in the event of a “structurally compromising impact,” better know as a crash. The wire substantially lowers the energy of a separated blade tip / lead weight assembly by tying the two structures together.

In addition to the above design features, MAH blades also feature “Dual Taper” technology. The blades are tapered along their chord as well as their airfoil cross sections, from root to tip. This design provides increased efficiency along the rotor blade span – optimized for 3D flight.

Specifications:
Length: 690mm

This product was added to our catalog on Friday, February 29, 2008.

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