News:


Advertise Here

  • October 21, 2021, 01:20:48 AM

Login with username, password and session length

Author Topic: Electric FAI speed model pass the 300 Km/h barrier  (Read 1345 times)

Offline Peter Germann

  • Trade Count: (0)
  • Commander
  • ****
  • Posts: 379
Electric FAI speed model pass the 300 Km/h barrier
« on: September 21, 2020, 09:22:15 AM »
At the e-speed F2G nationals from September 19th 2020 two swiss flyers passed 300 Km/h (182 mph). For detail go to: www.fesselflug.ch
Peter Germann

Offline Bob Heywood

  • Trade Count: (0)
  • Admiral
  • ******
  • Posts: 938
Re: Electric FAI speed model pass the 300 Km/h barrier
« Reply #1 on: September 21, 2020, 09:59:07 AM »
Very impressive!
"Clockwise Forever..."

Offline Peter Germann

  • Trade Count: (0)
  • Commander
  • ****
  • Posts: 379
Re: Electric FAI speed model pass the 300 Km/h barrier
« Reply #2 on: September 07, 2021, 08:27:25 AM »
Sept. 4 2021: Daniel Rota clocks 309.2 km/hr at the Lugo, Italy F2G contest.
Peter Germann

Offline Tim Wescott

  • 2016 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 12065
Re: Electric FAI speed model pass the 300 Km/h barrier
« Reply #3 on: September 07, 2021, 05:14:26 PM »
If anyone posted a movie, please post links.
AMA 64232

The problem with electric is that once you get the smoke generator and sound system installed, the plane is too heavy.

Offline Paul Smith

  • 21 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 5244
Re: Electric FAI speed model pass the 300 Km/h barrier
« Reply #4 on: September 08, 2021, 11:37:21 AM »
Given the harsh limitations on 2.5 cc piston engines and the complete lack of limits on electric motors it is not surprising that the unlimited motors beat the limited engines.
Paul Smith

Offline Peter Grabenstein

  • 2020 supporter
  • Trade Count: (0)
  • Commander
  • *
  • Posts: 340
Re: Electric FAI speed model pass the 300 Km/h barrier
« Reply #5 on: October 06, 2021, 11:31:23 PM »
If anyone posted a movie, please post links.




above ..... New world record - Daniel ROTA - 302.7 km/h @ Breitenbach SUI.



I hate pessimists, I prefer optimists.
Impossible is done immediately, miracles take longer.
I don't care who your father is ......... as long as I fly here,
Nobody walks, runs, floats or flies across my circle ......... not even to fetch fish, wine or bread.

Offline Tim Wescott

  • 2016 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 12065
Re: Electric FAI speed model pass the 300 Km/h barrier
« Reply #6 on: October 07, 2021, 01:09:56 PM »
Thanks Peter!

Do you know what folks are using in the power train?  Timers, ESCs, motors, batteries?
AMA 64232

The problem with electric is that once you get the smoke generator and sound system installed, the plane is too heavy.

Offline Peter Grabenstein

  • 2020 supporter
  • Trade Count: (0)
  • Commander
  • *
  • Posts: 340
Re: Electric FAI speed model pass the 300 Km/h barrier
« Reply #7 on: October 08, 2021, 12:05:49 AM »
Thanks Peter!

Do you know what folks are using in the power train?  Timers, ESCs, motors, batteries?

Nope Tim ,
I am pretty sure Peter Germann SUI will know all the facts , he is S.H. Forum member....--- PM , maybe he jumps in.

Regards
Peter
GER-1223
I hate pessimists, I prefer optimists.
Impossible is done immediately, miracles take longer.
I don't care who your father is ......... as long as I fly here,
Nobody walks, runs, floats or flies across my circle ......... not even to fetch fish, wine or bread.

Offline Peter Germann

  • Trade Count: (0)
  • Commander
  • ****
  • Posts: 379
Re: Electric FAI speed model pass the 300 Km/h barrier
« Reply #8 on: October 08, 2021, 02:17:37 AM »
I will ask 300 Km/h + flyer Daniel Rota permission to publish his e-mail here...
rgds, Peter
Peter Germann

Offline Peter Germann

  • Trade Count: (0)
  • Commander
  • ****
  • Posts: 379
Re: Electric FAI speed model pass the 300 Km/h barrier
« Reply #9 on: October 09, 2021, 09:34:02 AM »
I will ask 300 Km/h + flyer Daniel Rota permission to publish his e-mail here...
rgds, Peter

Here is a bit of basic data:

Motor: 29 mm dia    2600 kV  Leomotion L3025  or  3031
Battery:  6S 1700 mAh  min. 70C
ESC: Castle Phoenix Lite 50 A  Timing  Frequency 8Khz
Propeller APC
4.75 x 4.5   230 Km/h
4.75 x 4.75  250 Km/h
5.0 x 5.0     270 Km/h
RPM: approx. 48‘000

For frequently updated information and further data, please check this Group on facebook:
“F2G Speed control line models Electric FAI”
« Last Edit: October 10, 2021, 03:34:17 AM by Peter Germann »
Peter Germann

Offline Mark wood

  • Trade Count: (0)
  • Commander
  • ****
  • Posts: 194
  • I'm here purely for the fun of it.
Re: Electric FAI speed model pass the 300 Km/h barrier
« Reply #10 on: October 09, 2021, 07:25:23 PM »
That is over the edge cool.
Life is good AMA 1488
Why do we fly? We are practicing, you might say, what it means to be alive...  -Richard Bach
The aerobatic airplane is a tool, a pencil, a paintbrush the artist uses to paint their aero art on to the tapestry air with. That art is the combined elements of figures drawn in space and time.  - M. Wood

Offline Tim Wescott

  • 2016 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 12065
Re: Electric FAI speed model pass the 300 Km/h barrier
« Reply #11 on: October 10, 2021, 11:50:55 AM »
Here is a bit of basic data:

...


Thank you Peter.  The RPM is interesting -- I'm reminded of talking with a coworker at a previous job, who worked for a firm that made super-high-performance (for the day) brushless motors.  It turns out that -- in 1985, at least -- the limit to how fast you could spin a brushless motor was the strength of the rotating assembly.  At some point, the motor would throw magnets and seize up (these were inrunners) or otherwise suffer from mechanical failure due to centrifugal effects.
AMA 64232

The problem with electric is that once you get the smoke generator and sound system installed, the plane is too heavy.

Offline Tim Wescott

  • 2016 supporter
  • Trade Count: (0)
  • Admiral
  • *
  • Posts: 12065
Re: Electric FAI speed model pass the 300 Km/h barrier
« Reply #12 on: October 10, 2021, 02:45:30 PM »
Makes you wonder how dangerous it would be if the outer casing exploded.
(snip)

I always try to stand away from the plane of the propeller, even with boring old stunt planes.  Because something flying off is vanishingly unlikely, but getting your face speared by a prop blade would really, really hurt.
AMA 64232

The problem with electric is that once you get the smoke generator and sound system installed, the plane is too heavy.

Offline Mark wood

  • Trade Count: (0)
  • Commander
  • ****
  • Posts: 194
  • I'm here purely for the fun of it.
Re: Electric FAI speed model pass the 300 Km/h barrier
« Reply #13 on: October 10, 2021, 07:17:36 PM »
Makes you wonder how dangerous it would be if the outer casing exploded. How fast is tip speed at 48K on a 5" prop?  714 mph, just below mach 1 for standard day conditions. I think that might exceed APC guide lines lol.


Motorman 8)

As powerplant engineer involved in turbine engine development I am always cautious about being in the plane of rotation of anything that has any kind of rotational speed. It doesn't take but once being around one that lets go. The amount of energy contained in a rotating body can be tremendous.

But ya gotta admit the intrigue of running that motor at 48k is big....
Life is good AMA 1488
Why do we fly? We are practicing, you might say, what it means to be alive...  -Richard Bach
The aerobatic airplane is a tool, a pencil, a paintbrush the artist uses to paint their aero art on to the tapestry air with. That art is the combined elements of figures drawn in space and time.  - M. Wood

Offline katana

  • Trade Count: (0)
  • Lieutenant
  • ***
  • Posts: 105
Re: Electric FAI speed model pass the 300 Km/h barrier
« Reply #14 on: October 11, 2021, 05:32:18 AM »
I always try to stand away from the plane of the propeller, even with boring old stunt planes.  Because something flying off is vanishingly unlikely, but getting your face speared by a prop blade would really, really hurt.

Forget your face - that would be the least of your worries. A prop blade, of any material, hitting anything human between knee & the top of the head would likely drop you stone dead - in one side and out the other! Wire cages around speed circles may stop a whole plane but I think i'd like to be behind 1/4" polycarbonate at least when shrapnel is coming my way!


Advertise Here
Tags:
 


Advertise Here