Plug and Fly: Getting Electric Aviation Up In the Sky
Sonja Glavaski, PhD
Program Director
“If we all did the things we are capable of doing, we would literally astound ourselves.” - Thomas Edison
1Insert Presentation NameMarch 19, 2018
Small All-Electric Aircraft Are Here!
2Plug and Fly: Getting Electric Aviation Up In the SkyMarch 19, 2018
• 3 hours flight endurance
• 55-120 knots operation
• 260 Wh/kg, Li-Ion Battery
• 80 kW/20 kg electric motor
• 2 seats
Sun Flyer
Bye Aerospace
10x flight hour
cost reduction
Your Electric VTOL Ride Is On Its Way!
3Plug and Fly: Getting Electric Aviation Up In the SkyMarch 19, 2018
Joby S2 • ~ 2 hours flight endurance*
• 170 knots operation (projected)
• Li-Ion Battery
• 12 electric motors (10-18kW)
• Foldable propeller (take-off)
• 2 seats
On-Demand Mobility
*A.S. Stoll et al. Conceptual Design of The Joby S2 Electric VTOL PAV,
Aviation Tech. Integration, and Operation Conference, June 2014, Atlanta, GA
Can We Expand to Larger Aircraft?
4Plug and Fly: Getting Electric Aviation Up In the SkyMarch 19, 2018
Better Energy
Storage Specific
Energy
More
Efficient
Propulsion
Whole
System
Re-Design
www.siemens.com www.nasa.gov
5
“If we all worked on the assumption that what is
accepted as true is really true, there would be
little hope of advance.” - Orville Wright
0
20,000
40,000
60,000
80,000
SOA Electric* Electric**
Mass (
kg
)
Battery
Fuel
Engines
Structure
Cargo
Passengers& Crew
Why Can’t We Get There With Batteries Alone?
Plug and Fly: Getting Electric Aviation Up In the SkyMarch 19, 2018
MRJ7076 passengers
20,583
2,416
8,001
3,000
2,700
*w/ battery specific
energy (260 Wh/kg)
Replace fuel with batteries
and engines with electric motors
6
∞
1,990
3,690
We Need to Improve the Aircraft as a Whole!
Light-Weight
Electric Actuators
Innovative, Advanced
Light-Weight Materials
Propulsion Airframe
Integration
High Energy Storage
Specific Energy
Electric, High
Efficiency Distributed
Propulsion
Blended Wing Body
and High Aspect
Ratio Wings to
Improve L/D
0
20,000
40,000
MRJ70 Advanced Concept Radical Concept
Mass (
kg
)
Energy Storage
Fuel
Engines
Structure
Cargo
Passengers &Crew
A Few Redesign Options!
8Plug and Fly: Getting Electric Aviation Up In the SkyMarch 19, 2018
2,416
8,001
ESSE*: ~1550 Wh/kg
20,583 18,524
1,392
10,291
3,561
3,0001,990
2,700 5,756
ESSE*: ~ 1550 Wh/kg
Electric Blended Wing Body
+ 25% L/D,
- 10% structural weight
Push Further!
+ 20% L/D,
- 45% structural weight
*Energy Storage Specific Energy
500 Miles Flight
All phases + Reserves
76 passengers- 35% Energy
Consumption
9Plug and Fly: Getting Electric Aviation Up In the SkyMarch 19, 2018