Parawatt

France

July 27, 2010 Too bad I wasn't there to see it and, more importantly, fly it, but just the fact that they're producing an electric machine for sale is encouraging. After four years of quiet work by four impassioned innovators, they're making it happen. Louis Fourdan, one of the developers shared some information with us about their latest.

ParaWatt's story involves four dedicated  technicians who have worked on the electric paramotor for over 4 years--testing many existing motors and controllers, and finding nothing that fit with their desires of reliability and safety. So they created one. The one in these pictures is their fifth prototype.

Here are some details as provided by Pierre and Louis.

1. They don't sell completed paramotors but sell their engine (1794 ) and controller (699 ) on its own to frame builders.

2. The 13S, 40 Amp-Hr LiPo batter casts approximately 1600 from Kokam in Korea.

3. The maximum thrust is about 55 kgf with a typical 130 cm carbon propeller. They haven't created a thrust/duration curve yet but then nobody has yet.

4. The prototype weighs 31 kg and they will I think that it is possible to make less than 30 kg ready for the use.

5 We have 14 kg of batteries (13S 40Ah LiPo Kokam) on our foot-launch demonstrator.

6 Special charger/balancer LiPo for typical 4 hours charge.

7 At the 2010 Basse Ham show, our test pilot was in the air for 42 minutes without help from thermals and using conservative throttle management on the standard 13S LiPo 40 Ah pack. Normal flights, in still weather last about 30 minutes.

For more pictures, check out their Picasa site. US pilot Pierre Jean Beney is using a Parawatt motor in Nevada. Here are some of his videos. here and here. You can also reach Louis Fourdan at +33 1 42 37 20 06. Also, check out the electric Trikebuggy with New Propeller from Aerofortis here. You can also contact Parawatt president Pierre RENAULT at parawatt@orange.fr.

Apr 7, 2010 Pierre Renault, France

This system is currently for sale either as a complete paramotor or just the drive.

These guys have been quietly building an electric machine for the past four years--work that has paid off by creating a salable drive train that can be used by other makers. After seeing pictures, I inquired with the usual questions and the lead developer, Pierre, was most helpful. Computer translators are remarkable, making up for my utter lack of foreign language skills and letting us communicate reasonably well.

ParaWatt's story involves four "impassioned technicians" who have worked on the electric paramotor for more than 4 years, testing many existing motors, and finding nothing that approached what they wanted from a quality point of view of, reliability and safety. So they created one. The one in these pictures is their fifth prototype.

Here are the specifics, provided verbatim, from Pierre using a computer French-to-English Translator.

1 The price of the engine is of 1794 and the price of the controller is of 699 . We do not propose complete paramoteurs, but only the engine intended for manufacturers of paramotor or light ULM.

2 The price of battery 13S is approximately 1600 at Kokam in Korea.

3 The maximum trust is of 55 kgF with a propeller of 130 cm. Note: I asked about a thrust/duration curve but they haven't done that kind of testing yet. No worries, neither has anyone else.

4 The weight of our prototype is 31 kg, but it is a laboratory. I think that it is possible to make less than 30 kg ready for the use.
5 We have 14 kg of batteries.

6 Battery is a LiPo

7 Special Chargeur/equilibror LiPo regulated over 4 hours charge.

The four team members are Pierre Renault, Louis Fourdan, Patrick Seme, Jean-Pierre Hochart. More pictures are available here.

1. Test pilot Patrick Seme launches the fifth prototype at Basse Ham 2010.

2. An early version.