Paracell PPG Electric Paramotor and Trikes upto 1h40m flying time

Paracell Electric Paramotor Company have been quietly working away on their projects and have produced a good range of electric paramotor and electric trike options.

A neat unit that incorporates a belt reduction system to a fan cooled motor.

Claiming up to 64kg thrust and up to 70 mins flying on the ppg & up to 1 hour and 40 minutes flying time on the trike model with higher battery capacity.

http://paragliderelectric.com < spanish or here for google english

Electric Paramotor News

Turnigy RotoMax 150cc Brushless Electric Motor

A 150cc size gas engine equivalent the Turnigy RotoMax 150cc Brushless outrunner motor.

Another step towards an affordable electric paramotor.

When combined with a 14s Lipoly battery and a 250Amp ESC the RotoMax motor will supply punchy, responsive power that only an electric setup can provide.
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Spec.
Battery: 14 Cell / 51.8V
RPM: 150kv
Max current: 190A
Watts: 9800w
No load current: 51.8V/5.2A
Internal resistance: 0.011 ohm
Weight: 2530g
Diameter of shaft: 10mm
Winding: 8T
Stator Pole: 24
Motor Pole: 20
Stator Diameter: 101
Lamination Tickness: 0.2mm
Suggested ESC: 250A 14S Compatible

Currently on Hobbyking.com for $398

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Electric motor Turnigy RotoMax 100cc – suitable for electric ppg ?

Slightly cheaper than the previously mentioned Turnigy CA120-70 brushless motor $450 at this time of writing. The new RotoMax 100cc is $333 from hobbyking.

Spec.
Battery: 12 Cell / 44.4V
RPM: 167kv
Max current: 170A
Watts: 7992w
No load current: 44V/4.5A
Internal resistance: 0.021 ohm
Weight: 2074g
Diameter of shaft: 10mm
Suggested ESC: 250A 12S Compatible
Suggested Prop: 27×12

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PolyZion the Potential future battery technology for Electric PPG

Current battery technology lithium-ion, lead acid, and nickel metal hydride batteries may offer better performance than nicad, alkaline, lead acid, they are still not good for powering a paramotor – they’re heavy, expensive, and have known flammability issues.

The PolyZion research project are developing zinc-plastic batteries for use in hybrid and electric vehicles. They aim is to produce a rechargeable battery that is cheaper, lighter, safer, with more power, more green and fast charging.

http://www.polyzion.eu/

Heres hoping they succeed soon and we can all be flying electric paramotors in the not to distant future.

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SkyWalk E-Walk update : Electric PPG Paramotor / Launch Assist

The Skywalk E-Walk team have been busy over the winter and now have a dedicated website with more details and photos regarding their excellent “launch assist” electric paramotor http://www.e-walk.org

The E-Walk has an integrated, brushless high-performance motor that brings pilots quietly into the thermals! What was still a vision in the skywalk Magalog is now reality: pure electrically-powered paragliding.

The E-Walk Specs:

  • Total Weight including a reserve chute 25kg
  • Motor Power 11kw
  • 50kg Static Thrust
  • 11 min run time at FULL throttle
  • 25ah Lithium Iron Battery
  • Price €8900

Keep up with Electric PPG News Paramotor News.com

Radio Controlled Model Paragliders now in the UK

Opale Paramodels, Manufacturers of full size paragliders and the RC Soaring Paraglider which are now available in the UK through selected dealers. The Paramodel kit is custom made with fine details to make it fly as realistic as possible.

The Spiral 1.2m² wing is the result of a long development, using the highest glider software. Spiral is a combination of performance, play, fun and accessibility. It rolls in thermals as a real paraglider does.

To learn more and purchase follow the link to RCParaglider.

http://www.rcparaglider.co.uk

Skywalk E-Walk electric propulsion for paragliders paramotor ppg video

E-Walk, Skywalks electric paraglider propulsion system is nearing completion and should be available to buy in 2011. Why electric paraglider propulsion system, the aim of the project is to reach thermals and achieve long cross country flights.

As such, it has been designed for in-flight comfort and is built into Skywalks paraglider harness, with reserve and back protection in place.

Thrust Vector, an adjustment is made to change the angle of the prop by 45 degrees between take-off to flying. The adjustment is made by stepping on the stirrup, it assures optimum efficiency both in flight and on the ground.

Brushless motor is powered by Lithium Ion batteries and the unit has already passed the new EMV (electro-magnetic tolerance) testing criteria, a pre-condition for certification.

Electric Paramotor News

Understanding the LiPo Battery for electric start

LiPo batteries are used in PPG for Electric Start and full on electric paramotors.

Example Battery for starting a paramotor:

2200 Mah (milli amps) 2.2 amps

4s1p (made up of 4 cells) 14.8v (each cell 3.7v)

35c to 45c (discharge rate)

(35c? 2.2amps x 35c = 77 amp output with a max 30second burst of 45c x 2.2amps = 99amps)

Plug type: JST-HX (in this case (a 4 cell battery) its a 5pin balance lead.

Discharge Plug: XT60 (the connector type proving to be popular)

weight: 250 grams (wow what a weight saving over lead acid at 2600 grams/ 2.6kg)

Charge rate max of 2c (requires a balance charger) optimum charging is usually 1c which in this case is 2.2 amps charging this battery at 2c would require 4.4 amps. Never exceed what is stated on your battery. If in doubt always charge at 1c or less.

Above battery can be found for about £25

If the battery was larger for example:

Minimum Capacity: 3000mAh
Configuration: 4S1P / 14.8v / 4Cell
Constant Discharge: 40C
Peak Discharge (10sec): 50C
Pack Weight: 360g
Pack Size: 143 x 42 x 28mm
Charge Plug: JST-XH
Discharge plug: 4mm Bullet-connector

3000mAh = 3.0 amps x 50c = 150amps available for starting.

This battery is around £45

For electric paramotors many of these batteries are linked together in series and parallel to create voltages as high a 44v to 60v depending on the motor requirements.

Batteries wired in series increase voltage 14.8 + 14.8 + 14.8 + 14.8v = 59.20 volts

Batteries wired in parallel increase the Ah (amp hour) 3.0 x 4 = 12 aH

This looks good but half of the batteries are wired in parallel and half in series for another example we take

22.2 volt 6s lipo packs that are 5000mAh.

We would need 4 packs to generate 44.4v and 10 aH (2 batteries in parallel and 2 in series)

all this power would give us about 15 minutes flying time at 35kg thrust depending on the motor used.

New off the shelf Electric Motor for PPG the Turnigy CA120-70 Brushless Outrunner (20hp 100cc equivalent)

Designed as a 100cc gas engine replacement. The Turnigy CA120-70 Brushless Outrunner from HobbyKing could be the answer for many a home grown electric paramotor builder. At 20hp it has the power to produce over 50kg thrust (provided you have enough LiPo’s) and only 2.55kg

Spec.
Model: 120-70-15
Resistance: 4.8ohm
ESC Required: 250A
Input Voltage : 30~70V
Kv : 150 rpm/V
Weight: 2550g
Shaft: 10mm
20v Non Load Current: 11A
Dimensions: 168x140x118mm (Including Mount)
Equivalent: 110cc Twin Gas Engine (20hp+)

With this motor retailing at $299 about £190 its a bargain power plant.

All the parts can now be bought off the shelf. Large speed controllers costing similar money it is then down to the LiPo batteries. The more you carry the further you go but the heavier you will be.

more info about building electric ppg’s will be available soon from

ParamotorNews .com

Juiced Paramotors first Electric Test Flight Video

Juiced Paramotors (Gareth Houghton) shares his electric ‘launch-assist’ paramotor test flight with a youtube video.

On his website http://juicedparamotors.yolasite.com Gareth documents what parts he has used to manufacture his homebuilt working prototype electric ppg.

Powered Using a Turnigy 80-100-a 180Kv Brushless Outrunner motor which retail at a mere £70 and used for large scale rc planes. He coupled this to off the shelf LiPo batteries running at 48volts, off the shelf speed controller. He then skill fully married all this into a Rad Aviation chassis and even used the Radne prop to power the unit skywards.

Good British work shed engineering, we wish him luck for future developments.

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