Hello to all I´m a Hang Glider pilot since 1993 I also fly some other things like ultralights, hot air balloons... and I´m also an inventor. Recently I...
Hola Alfonso; I am also a hang glider pilot and have just ordered a wasp harness. It hasn't arrived yet but I will eventually want to replace the motor with ...
Hi pelicanooxidado, I fly PGH and PPG (both with Radne engines) - I'm seriously considering a predator 37 (15KW), since I should in theory be able to simply...
Hello Joe Great to share this space with many flying friends, specially with Hang Glider pilots. Yes I've flown in Valle de Bravo (Valle de Briagos) "Briagos"...
Chris, In the UK my company Electric Flight Systems and a sister company Electro Propulsion Ltd have been developing a direct drive electric motor for PPG / ...
Hello Chris Thanks a lot for your mail... so as it looks, the only pilot flying electric now is Mr. Csaba ond two or three more guys. I thought there was a lot...
Hello to all Does anyone knows what engine Csaba Lemak is using... ????????? http://www.youtube.com/watch?v=s3pgGDQIgjM 1.5 kilos Direct drive Wow !!!!!!!!!!!!...
Hey Alfonso and guys et all, We know that the electric motor TECHNOLOGY is out there, it's just a matter of time and money for someone to build one powerful...
Hi, Csaba's outrunner motor is not direct drive - you can see the reduction belt behind the prop - listen to him talking and read his web site - direct-drive...
Hi Chris, No not at the moment. But when we have, this forum will be among the first to hear it. Regards Paul Paul Hallatt Active Flight Systems Ltd Tel. +44...
Hey, what's with these hang gliders!?!? We're supposed to be at war, aren't we? Sorry, just had to jab. Love flying 'em both. It does seem like the HG, being...
Ultracaps are wonderful energy storage devices but in order to fully utilize the energy it is necessary to discharge them to zero volts whereas the battery...
Hi Jeff, Do you fly PHG and PPG? Which do you prefer??? Radne PHG's produce around 50kg thrust (that's "real" measured thrust, not sale-brochure stuff - we...
(Lurk mode off) Forgive me if this is a little off-topic... I'm just curious whether any e-friendly fliers have considered a custom prop? My interest in...
Hi Lock, I'm not sure about the others, but I've thought a lot about props - mostly stuff relating to single-prop design though: multiple props sound...
Hi Chris; A couple of weeks ago out at the flying feild a bunch of us got to reminiscing about the good ol days and while we were discussing ultralights one of...
Oops I think I said that backwards. The front prop has a finer pitch than the second (downstream) prop. Joe ... [Non-text portions of this message have been...
Hi Joe, Chris Thanks for the replies! ... I believe these are termed "ducted" or "shrouded" in the air...in water they are commonly termed "kort" after an...
Hi All , The Lazair ultralight from Canada had on the rotax 185 two nylon props mounted in the bi plane arrangment. photos and vids at www.lazair.com steve ......
Hi All, If the props rotate on the same axis, they usually do so in opposite directions, and are thus referred to as "counter rotating props". I've seen a few...
These props rotate together the same direction. Here is a photo http://www.ultralightnews.com/safety_bulletins/lazair_propbolts.htm Joe ... [Non-text portions...
I NEED TO KNOW WHERE I CAN BUY A FRAME AND MOTOR ECT. Only I where to prop Helix. I have one idea to make power for the battery in the air during flight...
nizar66
nizar2ca@...
Aug 25, 2007 1:30 pm
250
I have a company it's name is RCEV Products, LLC. I have been selling lithium polymer batteries to the model industry for about four years and have been...
richardedmonston
richardedmonston@...
Sep 1, 2007 10:18 pm
251
Hi Richard, Thanks for writing in! What can you tell us about LiPo batteries? I've seen some crazy fires on youtube - are these common? How would you hook up...
Chris, I agree that currently a lot of the noise comes from the prop. - but this can be very significantly reduced and should be our aim. The three major...
I'm glad you ask about lithium polymer battery fires, yes they will catch on fire if over charged, if you charge the battery over 4.65 volts per cell it can...
richardedmonston
richardedmonston@...
Sep 2, 2007 12:31 pm
254
Hello I have been watching development of electric powered flying. Just found this: Electraflyer electric ultralight trike ...
Hi Paul, ... Sorry for the wrong impression I might have given - hope is not lost: here's a silent helicopter: http://www.gizmag.com.au/go/4785/ "Radical Blade...
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