Green Rotorcraft
Environmental Objectives
Clean Sky / GRC– IPAS 2013
Innovative Blades
Drag Reduction Eco-friendly Design
More Electrical RotorcraftOptimised Flight Paths
High Compression Engine on Light Helicopter
Clean Sky / GRC– IPAS 2013
An objective-driven approach implemented through demonstrators
Innovative Rotor Blades
-3D-Optimized BladeBlade design for improved performances (stall alleviation, increased lift and reduced drag) PDR passed, Detailed design of
full scale rotor in progress TRL 5/6 to completion
(ground test demonstration)
-Active Gurney Flap rotorActive device (Gurney Flap) actuated once per revolution and blended into blades: lift increased and reduced power CDR passed Both model scale & full scale
tests under preparation Ground tests/ Flight test in 2014 (TRL6)
Clean Sky / GRC– IPAS 2013
Drag reduction
Clean Sky / GRC– IPAS 2013
-Rotor hub & pylonOptimisation of specific helicopter features (rotor hub, aft body, landing skids,) to reduce drag effects Wind Tunnel tests in progress (light&
medium twin engine configs) Best solutions to be flight-tested in 2015-16 (TRL6)
-Flow separation control devices for drag reductionStudy of different active and passive devices Synthetic jets and steady blowing:
successful Wind Tunnel Tests (TRL 4)
-Engine installationOptimised engine installation (air-inlet, exhaust pipe)for both conventional and Tilt-rotor platforms ERICA tilt-rotor nacelle: Wind Tunnel verification
of inlet & bypass efficiency (scheduled in 2014)
Towards a more electrical AircraftSample Future System
Clean Sky / GRC– IPAS 2013
Good results to date- Energy Recovery
1st demo by end 2012
- Electrical Main Rotor Actuators CDR scheduled in July 13
- Starter/ generator PDR passed
- Power Converter & StorageDetailed Requirements
High Compression Engine on Light Helicopter
Clean Sky / GRC– IPAS 2013
-Benefits of this Technology Lower fuel consumption (- 30% Specific Fuel Consumption) Reduction of emissions (-40% CO2, -50% NOx) Increased distances with the same amount of fuel (roughly double is possible in (roughly doubled in certain
missions)
Reduced Direct Operating Costs by up to 30% (DOC) Improved helicopter performance in hot & high conditions
-Technical Data Common rail high pressure injection (1800bar) Turbocharger with air/air intercooler Functions with kerosene Core Engine Mass (dry): 197 kg/ Installed Powerpack: 249
kg Power output (@MGB inlet): 330kW up to
2500m and ISA+20°C
-Achievement on track (39 months in total from design to integration)
March 2013- first engine test Early 2014 - first ground tests
Environment-Friendly Flight Paths
Clean Sky / GRC– IPAS 2013
-Flight Procedures Designed with ATM specialists; data base acquired IFR and VFR procedures optimised for take-off and
landing phase: GPS-based approach Simultaneous Non Interfering approach (SNI)
-Flight Guidance systems Pilot guidance & autopilot designed
-Verification of acoustic efficiency Successful flight testing completed in June 13
for IFR-LPV automatic approach
SNI approach(@TLS airport/OPTIMAL project)
High Compression Engine Demo- Power pack: all bench tests passed- Iron Bird & helo ground tests passed; ready for flight testing
Innovative Rotor blades:- Active Twist Blade: blade segment tested- Active Gurney Flap: rotor tested (whirl tower, flight) - 3D-Optimized Blade: rotor tested (whirl tower)
Q2/2014
Q2/2015
Towards promising results
Environment-Friendly Flight Paths- IFR & VFR procedures & systems: validated in
operational environment - Underpinning & complementing SESAR (rotorcraft)
Q2/2015
Drag reduction and shape optimisation- Individual devices/mods: WT test (TRL4) or flight (TRL6)- Integration with interactions: WT test with complete model
(common platform GOAHEAD)
Q4/2015
Q3/2015Technos for More Electrical Rotorcraft- Subsystems & Equipment: Individual bench tests - Integrated system: Copper Bird testing (TRL5)- Electrical Tail Rotor (TRL 5) - Electric taxiing (TRL5)
Q3/2015
Clean Sky / GRC– IPAS 2013
Thank you for your attention
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