Range of well less than 1% of the circumference of Earth is not a significant accomplishment unless the mission is only to fly across town and then recharge overnight (unless you're comparing aircraft to horse-drawn carriages).I say 300 km is already significant.
Range of well less than 1% of the circumference of Earth is not a significant accomplishment unless the mission is only to fly across town and then recharge overnight (unless you're comparing aircraft to horse-drawn carriages).
Puh-leez. If I can acquire a horse and feed it for less than an "advanced" airplane and cover more territory per day, then the airplane is no technical accomplishment, whether it runs on oats or pedal power or solar energy or nuclear fusion. Yeah, it's relative, TopSpeedBoat100.Everything is relative...
=what incident (crash )?from the incident
Hello!Range of well less than 1% of the circumference of Earth is not a significant accomplishment unless the mission is only to fly across town and then recharge overnight (unless you're comparing aircraft to horse-drawn carriages).
Hello!
So it means that when electric airplane will achieve 400 km range it will be reasonable minimum?
Best regards!
Martin
How are you going to charge it to get home? Do we now have to add the weight of an onboard charger?In a good tail wind a 300 km aircraft can easily fly 400 km. That is plenty, but it is no transcontinental miracle ship.
Mr. poormansairforce...in the early days of the computer it was estimated that the whole global demand of the computers would be 4 units. Let's think same in chargers...and hope the second charger will be there where I am going ?How are you going to charge it to get home? Do we now have to add the weight of an onboard charger?
Let me know when that becomes reality. There's so little money in GA today that I find it very difficult to believe this will ever happen in my lifetime. You can't even get auto gas at most airports. I can't see airports flocking to put chargers in every hanger as well as for general use on the ramp. And please don't say the words 'solar panel'.....Let's think same in chargers...and hope the second charger will be there where I am going ?
Let me know when that becomes reality. There's so little money in GA today that I find it very difficult to believe this will ever happen in my lifetime. You can't even get auto gas at most airports. I can't see airports flocking to put chargers in every hanger as well as for general use on the ramp. And please don't say the words 'solar panel'.....
The chart needs another row to display the expected date to actually have an airplane that meets the postulated performance.
The chart needs another row to display the expected date to actually have an airplane that meets the postulated performance.
BJC
And their numbers don't make sense. From Wikipedia:They sport a very capable looking plane: Bye Aerospace eFlyer 2 - Wikipedia
And their numbers don't make sense. From Wikipedia:
"The 57 lb (26 kg) Siemens SP70D has a takeoff rating of 90 kW (120 hp) and 70 kW (94 hp) continuous. Utah-based Electric Power Systems provides the 92-kWh energy storage including battery modules, management and distribution."
How does a 92 kWh battery provide 3.5 hours endurance at 70 kW? How does a 1900-pound airplane get a climb of 1050 FPM on 120 HP? What sort of 38-foot wing gives a 20.6: L/D at 1900 pounds?
- Crew: one
- Capacity: one passenger
- Wingspan: 38 ft (12 m)
- Wing area: 129 sq ft (12.0 m2)
- Empty weight: 1,460 lb (662 kg)
- Gross weight: 1,900 lb (862 kg)
- Powerplant: 1 × Siemens SP70D[21] electric motor with up to six lithium-ion battery packs, 115 hp (90 kW)
- Maximum speed: 135 kn (155 mph, 250 km/h)
- Endurance: 3.5 hours
- Maximum glide ratio: 20.6:1
- Rate of climb: 1,050 ft/min (5.3 m/s
There's either some hidden magic, or a lot of mathematical deception. They built one airplane four years ago and flew it two years ago. Got 200 deposits. Are they waiting and hoping for a still-nonexistent battery a lot better than what they have? That's what the Harbour Air electric Beaver is waiting for.