Eurocopter Moves One Step Closer to Whisper Mode Technology

Eurocopter Moves One Step Closer to Whisper Mode on this week? Just about every helicopter abettor is absolutely accustomed with babble complaints. Whether it be the bounded account helicopter or alike a medical helicopter, abounding bodies on the arena don’t like the complete created by rotary-wing aircraft.

This anniversary Eurocopter apparent its best contempo accomplishment to abate helicopter babble with the radical-looking Blue Bend rotor blade. The new brand has been activated on one of the company’s EC155 helicopters and was apparent to abate babble 3 to 4 decibels, according to the company.

In accession to the Blue Bend rotor blade, the aggregation additionally alien article alleged Blue Pulse technology. Additionally advised to abate helicopter noise, the Blue Pulse arrangement uses three accessory modules in the abaft bend of anniversary rotor blade. Piezoelectric motors move activate the flaps 15 to 40 times per additional in abate the “slap noise” generally heard back a helicopter is descending.

Both of these technologies are able to abate babble by aspersing the blade-vortex alternation of the capital rotor on a helicopter. Blade-vortex alternation is the antecedent of the pulsating complete best of us are accustomed with back helicopters fly overhead. The babble is created back a rotor brand hits the deathwatch amphitheater larboard abaft from the brand in advanced of it.

You can accept to a cockpit recording of Eurocopter’s EC155 with and after the Blue Bend rotor below.

Normally, the absolute breadth of the rotor brand interacts with the amphitheater of the above-mentioned blade. With the Blue Bend rotors, the double-swept tips of the rotor brand abate the breadth of the blade-vortex interaction, and it does it at the tip area the blades are affective the fastest about to the air. The aftereffect is a abatement in the complete produced due of the deathwatch alternation at the tip.

Both the new rotor brand and abaft bend flaps are allotment of what Eurocopter is calling its “Bluecopter” technology. The aggregation says the ambition is to actualize added environmentally affable helicopters from both a babble and emissions standpoint. We appear on Eurocopter’s plan for a fuel-efficient agent helicopter on Wednesday.

No acceptance from Eurocopter, but in alienated putting the “green” characterization on their efforts, the aggregation appears to be borrowing from everybody’s admired cine helicopter legend, Blue Thunder. The 1980s accurate masterpiece appearance a helicopter fabricated by what is now Eurocopter, an Aérospatiale Gazelle. And one of the helicopter’s best absorbing technologies was its “whisper mode” that accustomed it to fly about as quiet as a glider. Could aloof be a coincidence.