Welcome to Jetcopter !
Helicopters invented in 1920's , Jetcopter reinvented them after 100 years !
Why Jetcopter ?
* one of most compact VTOL projects in the world due ussing ducted centrifugal air turbines
* more safe to passengers and to people nearby - will have fully ducted fans .
* more efficient in horizontal flights , will have wings , pusher propeller
* more affordable compared with 5 seats helicopters
* feasible construction and effective production costs
* many other advantages to be added ...
VTOL AIRCRAFTS HISTORY
It's a long story to explain why some VTOL aircraft construction can be better than other . Too much of different VTOL constructions presented this days . Majority of them are just recalls of 1950's , second attempt to bring them to life .
Below we will explain why JETCOPTER will be better VTOL aircraft
( it will take a time to add all info )
JETCOPTER will take off powered by electric motors ( 2 electric motors per rotor for redundancy and safety ) , after aircraft will take off in 10 m , the pusher propeller powered by automotive piston motor will start to push aircraft forward . Electric motors will be used for short time - take off and landing 15 min + 15 min . In flight batteries will be charged by automotive motor .
PROPULSION SYSTEM - CENTRIFUGAL AIR TURBINE vs AXIAL
Automotive piston motors + electric motors vs turboshaft
Power : 300 kW , weight - 135 kg ,
price -250 000$
TBO - 3000 h
4 cylinder piston : 312 kW , weight -160 kg ,
price - 12000$
TBO - 8000 h
electric motor : 260 kW , weight - 50 kg
Batteries weight for 30 min : kg
TBO - 20 000 h
Urban flights will require additional capabilities as VTOL aircrafts will operate close to pedestrians and buildings.
Why not multicopters ?
As less rotors aircraft have , as more reliable and less power requiring aircraft is.
1st multicopters law : smaller rotors require much more powerful motors.
Average helicopter rotor is 12 m diameter , it's 113 m2 disc area !
Most of multicopters have up to 2m diameter rotors , which have 3 m2 or smaller disc area !
That is 37 times smaller than helicopter !
They must have 37 x rotors to get enough lifting power !
The smaller is rotor disc area - more power you will need for take off .
More power = more motors = more controllers = more batteries = more weight = short flying time .
video below in short and funny form shows all essence of urban air taxi
JETCOPTER centrifugal airturbines
Bell made it with 6 Airbus with 4
Bell Nexus Airbus airtaxi
Jetcopter made with 2 rotors
USA patent , publication US-2019-0016453-A1
New technology urban VTOL aircraft with automotive hybrid motors , 1000 km flying distance
Spec :
propulsion : 2 counter rotating 300-400 cm radial air turbines
motors : electric 4 x 250 KW
or
motors : hybrid 2 x 500 KW
capacity : 5 seats
flying distance with hybrid motors : 1000 km ( 620 miles )
flying distance with electric motors : --- km ( --- miles ) to be confirmed
speed with hybrid motors: > 300 km/h ( 186 mph )
speed with electric motors : --- km/h ( --- mph ) to be confirmed
MTOW : 2000 kg ( 4400 pounds )
safety : 2 parachutes
Why Jetcopter will be better urban VTOL ?
JETcopter construction
modular construction
Why Jetcopter will be more efficient VTOL ?
JETcopter will be able to use air lifting power , helicopter not .
JETcopter evolution
Engine :
2 x 450 hp automotive with duplicated fuel ,
cooling , power supply systems .
Reliable and less mechanically complex
no swash plates , no cyclic , no hydraulics , no clutch .
Take off : helicopter mode or plane mode
fly as plane
will be able to land at auto parking ,
will be able to maneuver safe between cars
powered by reliable automotive motors ,
may not need helicopter pilot licence
much easier to pilot
Production costs ( compared with 6 place helicopter ) :
rotors - 70 % cheaper
carbon fiber fuselage - 50 % cheaper
motors - 90 % cheaper
Operational costs
predicted 60-70 % lower than helicopter
better aerodynamics
better functionality
equipped with 2 parachute life saving system
fuselage all made from carbon fiber
Tilt wings with 4 vectoring nozzles