Farfles Electric Ultralight.

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Farfle
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Farfles Electric Ultralight.

Post by Farfle » Jun 21, 2017 11:48 pm

Heya all!! Started this project around the beginning of the year, and have made enough progress to post it up on the forum.

Heres some stats:

Airframe: Belite Ultracub
Motor: salvage Zero 75-5 IPM
Battery: Farasis 29AH 28S4P pack
Controller salvage sevcon Gen4 Size 4
Bms: None
Charger: Meanwell RSP2000 x2

This guy will be called Mk.5!


Image

Image

Image
Last edited by Farfle on Jun 22, 2017 1:08 am, edited 1 time in total.
The race bike:
24s5p 50c nano tech
Badass custom mofo outrunner 205x177mm 26kv
Peak power in : 420A at 87v
Peak power out: 34 Hp and 105ft/lb

Build to last...
"It will be assaulted by the elements, It will be ravaged by time and it will be destroyed by the user. BUT, if you Stick to the little rules: K.I.S.S., Overbuild everything, and test, review, revise, repeat. It will last"


Team Farfle blog!! http://www.farfleselectrics.blogspot.com

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Farfle
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Re: Farfles Electric Ultralight.

Post by Farfle » Jun 22, 2017 12:21 am

Image

Image

Image

Image

Image

Image
The race bike:
24s5p 50c nano tech
Badass custom mofo outrunner 205x177mm 26kv
Peak power in : 420A at 87v
Peak power out: 34 Hp and 105ft/lb

Build to last...
"It will be assaulted by the elements, It will be ravaged by time and it will be destroyed by the user. BUT, if you Stick to the little rules: K.I.S.S., Overbuild everything, and test, review, revise, repeat. It will last"


Team Farfle blog!! http://www.farfleselectrics.blogspot.com

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Farfle
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Re: Farfles Electric Ultralight.

Post by Farfle » Jun 22, 2017 12:23 am

Image

Image

Image

Image
The race bike:
24s5p 50c nano tech
Badass custom mofo outrunner 205x177mm 26kv
Peak power in : 420A at 87v
Peak power out: 34 Hp and 105ft/lb

Build to last...
"It will be assaulted by the elements, It will be ravaged by time and it will be destroyed by the user. BUT, if you Stick to the little rules: K.I.S.S., Overbuild everything, and test, review, revise, repeat. It will last"


Team Farfle blog!! http://www.farfleselectrics.blogspot.com

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Farfle
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Re: Farfles Electric Ultralight.

Post by Farfle » Jun 22, 2017 12:26 am

Image

Image

Image

Image

Image

Image

Image

Image
The race bike:
24s5p 50c nano tech
Badass custom mofo outrunner 205x177mm 26kv
Peak power in : 420A at 87v
Peak power out: 34 Hp and 105ft/lb

Build to last...
"It will be assaulted by the elements, It will be ravaged by time and it will be destroyed by the user. BUT, if you Stick to the little rules: K.I.S.S., Overbuild everything, and test, review, revise, repeat. It will last"


Team Farfle blog!! http://www.farfleselectrics.blogspot.com

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Farfle
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Re: Farfles Electric Ultralight.

Post by Farfle » Jun 22, 2017 12:29 am

Image

Image

Image
The race bike:
24s5p 50c nano tech
Badass custom mofo outrunner 205x177mm 26kv
Peak power in : 420A at 87v
Peak power out: 34 Hp and 105ft/lb

Build to last...
"It will be assaulted by the elements, It will be ravaged by time and it will be destroyed by the user. BUT, if you Stick to the little rules: K.I.S.S., Overbuild everything, and test, review, revise, repeat. It will last"


Team Farfle blog!! http://www.farfleselectrics.blogspot.com

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Re: Farfles Electric Ultralight.

Post by liveforphysics » Jun 22, 2017 12:32 am

So excited to fly in it!!!
Each carcinogen vapor exposure includes a dice roll for cancer.

Each mutagen vapor exposure includes a dice roll for reproductive genetic defects in your children.

Each engine start sprays them into a shared atmosphere which includes beings not offered an opportunity to consent accepting these cancer experiences and defective genetics life experiences.

Every post is a free gift to the collective of minds composing the living bleeding edge of LEV development on our spaceship.

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Re: Farfles Electric Ultralight.

Post by Farfle » Jun 22, 2017 1:05 am

liveforphysics wrote:So excited to fly in it!!!
Should be a good performer!

More pics to come.
The race bike:
24s5p 50c nano tech
Badass custom mofo outrunner 205x177mm 26kv
Peak power in : 420A at 87v
Peak power out: 34 Hp and 105ft/lb

Build to last...
"It will be assaulted by the elements, It will be ravaged by time and it will be destroyed by the user. BUT, if you Stick to the little rules: K.I.S.S., Overbuild everything, and test, review, revise, repeat. It will last"


Team Farfle blog!! http://www.farfleselectrics.blogspot.com

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Farfle
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Re: Farfles Electric Ultralight.

Post by Farfle » Jun 22, 2017 11:22 am

Pics of the belt reduction:

Image

Image
The race bike:
24s5p 50c nano tech
Badass custom mofo outrunner 205x177mm 26kv
Peak power in : 420A at 87v
Peak power out: 34 Hp and 105ft/lb

Build to last...
"It will be assaulted by the elements, It will be ravaged by time and it will be destroyed by the user. BUT, if you Stick to the little rules: K.I.S.S., Overbuild everything, and test, review, revise, repeat. It will last"


Team Farfle blog!! http://www.farfleselectrics.blogspot.com

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Re: Farfles Electric Ultralight.

Post by mauimart » Jun 22, 2017 2:10 pm

Great project--can't wait to see it flying. What's the kV of that motor and what is the gear reduction? What size prop are you planning on spinning?

I am going to be embarking on a similar project with high school students. Starting in September we will be fabricating the EMG-6 (https://electricmotorglider.com/) with electric drive. Have not decided on the motor/prop as of yet but would like to do direct drive (no reduction). Here is another UL that used the Zero motor (https://www.youtube.com/watch?v=-eYIfGGk2yg&t=204s).

Best of luck to you.

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Re: Farfles Electric Ultralight.

Post by Farfle » Jun 22, 2017 2:52 pm

mauimart wrote:Great project--can't wait to see it flying. What's the kV of that motor and what is the gear reduction? What size prop are you planning on spinning?

I am going to be embarking on a similar project with high school students. Starting in September we will be fabricating the EMG-6 (https://electricmotorglider.com/) with electric drive. Have not decided on the motor/prop as of yet but would like to do direct drive (no reduction). Here is another UL that used the Zero motor (https://www.youtube.com/watch?v=-eYIfGGk2yg&t=204s).

Best of luck to you.
I forget the motors Kv, But max speed is 6000 RPM and max power somewhere around 3300 RPM.

I plan on spinning a 62-66" two blade Powerfin "B" blade around 2850-3100 RPM. Current gear ratio is 30/65
The race bike:
24s5p 50c nano tech
Badass custom mofo outrunner 205x177mm 26kv
Peak power in : 420A at 87v
Peak power out: 34 Hp and 105ft/lb

Build to last...
"It will be assaulted by the elements, It will be ravaged by time and it will be destroyed by the user. BUT, if you Stick to the little rules: K.I.S.S., Overbuild everything, and test, review, revise, repeat. It will last"


Team Farfle blog!! http://www.farfleselectrics.blogspot.com

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Re: Farfles Electric Ultralight.

Post by fechter » Jun 22, 2017 3:01 pm

Do you need a FAA license to fly one of those?
"One test is worth a thousand opinions"

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Re: Farfles Electric Ultralight.

Post by Farfle » Jun 22, 2017 3:09 pm

fechter wrote:Do you need a FAA license to fly one of those?
Nope! This is a FAA part 103 ultralight.
The race bike:
24s5p 50c nano tech
Badass custom mofo outrunner 205x177mm 26kv
Peak power in : 420A at 87v
Peak power out: 34 Hp and 105ft/lb

Build to last...
"It will be assaulted by the elements, It will be ravaged by time and it will be destroyed by the user. BUT, if you Stick to the little rules: K.I.S.S., Overbuild everything, and test, review, revise, repeat. It will last"


Team Farfle blog!! http://www.farfleselectrics.blogspot.com

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Re: Farfles Electric Ultralight.

Post by liveforphysics » Jun 22, 2017 3:52 pm

A gen4. 5 will be a nice performance upgrade path for even shorter takeoffs assuming the airframe is up to it.

That bird with a couple linear actuators on the stick would make a fine 1:1 RC model.
Each carcinogen vapor exposure includes a dice roll for cancer.

Each mutagen vapor exposure includes a dice roll for reproductive genetic defects in your children.

Each engine start sprays them into a shared atmosphere which includes beings not offered an opportunity to consent accepting these cancer experiences and defective genetics life experiences.

Every post is a free gift to the collective of minds composing the living bleeding edge of LEV development on our spaceship.

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Re: Farfles Electric Ultralight.

Post by SlowCo » Jun 22, 2017 3:58 pm

Wow, what an amazing project! I wish you well while building and a safe flight when it's done.

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Re: Farfles Electric Ultralight.

Post by mauimart » Jun 22, 2017 7:33 pm

Can you clarify the battery pack? Is it 29Ah total or 4 x 29Ah? The latter would make a 12kWh pack. And what is the anticipated weight of battery?

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Re: Farfles Electric Ultralight.

Post by Farfle » Jun 22, 2017 7:38 pm

mauimart wrote:Can you clarify the battery pack? Is it 29Ah total or 4 x 29Ah? The latter would make a 12kWh pack. And what is the anticipated weight of battery?
The pack is 29Ah per cell with 4 in paralell for a roughly 12kwhr pack. Pack weight will be right at 67KGs
The race bike:
24s5p 50c nano tech
Badass custom mofo outrunner 205x177mm 26kv
Peak power in : 420A at 87v
Peak power out: 34 Hp and 105ft/lb

Build to last...
"It will be assaulted by the elements, It will be ravaged by time and it will be destroyed by the user. BUT, if you Stick to the little rules: K.I.S.S., Overbuild everything, and test, review, revise, repeat. It will last"


Team Farfle blog!! http://www.farfleselectrics.blogspot.com

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Re: Farfles Electric Ultralight.

Post by fechter » Jun 22, 2017 9:12 pm

liveforphysics wrote: That bird with a couple linear actuators on the stick would make a fine 1:1 RC model.
I was thinking the same thing. It could carry a nice payload.
"One test is worth a thousand opinions"

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Re: Farfles Electric Ultralight.

Post by marty » Jun 22, 2017 10:00 pm

This reminds me of my radio controlled model airplanes. Was really into those before I was old enough to have a car, 12 to 15 years old? I am 56 now. Was better at building then flying. Crashed every plane. I still have the planes in my attic. Balsa wood, plastic covering that ya heat and shrink with a little iron, gas engines, servos, music wire. I liked flying the glider the best. Long rubber tubing to launch it.

Remember one plane. No throttle control? Had a experienced pilot fly it for me. Plane had a problem and kept flying higher and higher. Eventually the experienced pilot was able to get the plane to come down and land.
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Re: Farfles Electric Ultralight.

Post by litespeed » Jun 23, 2017 6:27 am

That is really cool.

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Re: Farfles Electric Ultralight.

Post by spinningmagnets » Jun 23, 2017 7:06 am

This is an awesome project, I look forward to the results.
AircraftBelite1.png
I am reminded of the 1937 Fi-156 Fieseler Storch (Stork)

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Re: Farfles Electric Ultralight.

Post by rojitor » Jun 23, 2017 12:49 pm

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Re: Farfles Electric Ultralight.

Post by Farfle » Jun 24, 2017 10:22 am

spinningmagnets wrote:This is an awesome project, I look forward to the results.


I am reminded of the 1937 Fi-156 Fieseler Storch (Stork)

[img]http://www.toni-clark.com/english/model ... M-PL_3.jpg
That Storch is a special kind of ugly, but a fairly good performer!
The race bike:
24s5p 50c nano tech
Badass custom mofo outrunner 205x177mm 26kv
Peak power in : 420A at 87v
Peak power out: 34 Hp and 105ft/lb

Build to last...
"It will be assaulted by the elements, It will be ravaged by time and it will be destroyed by the user. BUT, if you Stick to the little rules: K.I.S.S., Overbuild everything, and test, review, revise, repeat. It will last"


Team Farfle blog!! http://www.farfleselectrics.blogspot.com

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Re: Farfles Electric Ultralight.

Post by Matador » Jun 24, 2017 10:35 am

Wow ! OMG Wow ! I want one....

Brings back memories.... Me on coming back from my first solo :
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And no more carb heat !
Hopefully it can take just enough G's for roman candles and lazy eights !


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Re: Farfles Electric Ultralight.

Post by helno » Jun 24, 2017 11:00 am

How is your weight budget looking? Far 103 is pretty strict with that 254 lb limit.

Looks like it will have tons of power. Belite makes neat little planes.

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Re: Farfles Electric Ultralight.

Post by neptronix » Jun 24, 2017 11:58 am

Wow.. I've pimped this thread in the endless sphere facebook group because it is so damn rad.

Can't wait to see how it turns out; best wishes!
My first major build: 8T MAC motor on a Trek 4500.
The new all-arounder: Leafmotor 1500w on a Turner O2 full suspension.
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