Search found 52 matches

by helno
Feb 07 2019 5:51pm
Forum: Electric Aircraft
Topic: Converting a MONI motor glider to electric
Replies: 14
Views: 1944

Re: Converting a MONI motor glider to electric

Where you will place the battery pack? Plan is to locate it where the fuel tank currently resides which is in the forward fuselage between my legs. In previous conversions this is where it has ended up. The wings on the Moni are very thin so there is not a lot of room in the wings. Dude. Why don't ...
by helno
Feb 06 2019 8:16pm
Forum: Electric Aircraft
Topic: Converting a MONI motor glider to electric
Replies: 14
Views: 1944

Re: Converting a MONI motor glider to electric

You already have the feathering propeller? There are a few out there but I have not had much luck figuring out who makes them to purchase one. I have an idea for how to implement one using existing large scale R/C folding prop blades but want to ensure I can get a usable powerplant with a fixed pro...
by helno
Jan 29 2019 9:38pm
Forum: Electric Aircraft
Topic: Elephant in the room - Quadcopters...
Replies: 184
Views: 26432

Re: Elephant in the room - Quadcopters...

But that's like saying I have an awesome method to create gold out of almost nothing! I'll be a millionaire, right? To create a gram of gold, I just start with three grams of diamonds and . . . The plants I work at have neutron flux detectors that slowly turn to gold. But they start out as Platinum...
by helno
Jan 21 2019 8:03pm
Forum: Electric Aircraft
Topic: Converting a MONI motor glider to electric
Replies: 14
Views: 1944

Re: Converting a MONI motor glider to electric

Well time for a slight update.

Bought a motor and speed controller from here.

Going to take a bit of work to make a reduction drive to adapt it for propeller use.

34 kw SMRE size 14 motor
Image

Sevcon Gen4 350 A
Image
by helno
Nov 27 2018 12:07pm
Forum: Electric Aircraft
Topic: Finally started my electric aircraft build
Replies: 10
Views: 741

Re: Finally started my electric aircraft build

Here are some big ones.

http://www.icare-rc.com/propellers_folding.htm

Biggest one on there is a 34.2" x 22.5" three blade unit.

Folding is nice if the plan is to shut down the engines but just stopping the prop cuts down on drag quite a bit.
by helno
Nov 25 2018 12:10pm
Forum: Electric Aircraft
Topic: Finally started my electric aircraft build
Replies: 10
Views: 741

Re: Finally started my electric aircraft build

It is an aerobatic motorglider rather than a nice clean design. https://imgur.com/OkUHaux It has constraints on propeller diameter with a forward mounted engine so I am thinking that distributed would take care of that rather than having a single really inefficient prop on the nose. And if I go with...
by helno
Nov 18 2018 7:26pm
Forum: Electric Aircraft
Topic: Finally started my electric aircraft build
Replies: 10
Views: 741

Re: Finally started my electric aircraft build

I'm really interesting in how you make out with the distributed propulsion.

Might be a better option for the MONI motorglider I am looking to convert.
by helno
Nov 05 2018 10:24pm
Forum: Electric Aircraft
Topic: Farfles Electric Ultralight.
Replies: 196
Views: 20252

Re: Farfles Electric Ultralight.

Great to see this project flying!
by helno
Jul 06 2018 7:11pm
Forum: Electric Aircraft
Topic: Farfles Electric Ultralight.
Replies: 196
Views: 20252

Re: Farfles Electric Ultralight.

Get some electronic flight bag software and do the same thing. You will need it afterwards anyways.

Fltplan GO is free and there are a few others that are as well. The premium software like Foreflight is better but that is mostly in the UI department.
by helno
Jul 06 2018 12:10pm
Forum: Electric Aircraft
Topic: Farfles Electric Ultralight.
Replies: 196
Views: 20252

Re: Farfles Electric Ultralight.

Simulators are actually really bad at teaching you the stick ad rudder skills needed to fly light aircraft.

They are great once you get to instrument flying but there is nothing that beats the seat of the pants feel for learning to fly.
by helno
Mar 11 2018 2:28pm
Forum: Items for Sale - Used
Topic: e-trike powertrain agni 95R with kokam 3.9kWh li-po
Replies: 2
Views: 621

Re: e-trike powertrain agni 95R with kokam 3.9kWh li-po

What kind of performance were you getting out of it?

I'm looking at 20+ Kw for a Moni motorglider. I know they have flown on a 95R but it appears to be pretty marginal.
by helno
Jan 02 2018 6:16pm
Forum: Electric Aircraft
Topic: Farfles Electric Ultralight.
Replies: 196
Views: 20252

Re: Farfles Electric Ultralight.

Pipistrel makes a nice plane.

They are selling them up here in Canada already.

Unfortunately the LSA rules specifically say that an LSA must have a single reciprocating engine. Someone was a bit shortsighted when they wrote that rule.
by helno
Dec 13 2017 6:50pm
Forum: Electric Aircraft
Topic: E-Hawk: Electric Aircraft Build
Replies: 1
Views: 705

Re: E-Hawk: Electric Aircraft Build

I thought the guys behind the EMG had a motor planned out.

You could always use a pair of Turnigy rotomax's but be sure to get the voltage up.
by helno
Nov 14 2017 9:07pm
Forum: Electric Aircraft
Topic: DIY ultralight, Retro biplane style, twinprop
Replies: 8
Views: 1641

Re: DIY ultralight, Retro biplane style, twinprop

It will be interesting to see his in flight power measurements once he adds the instrumentation.
by helno
Oct 27 2017 7:34pm
Forum: Electric Aircraft
Topic: DIY ultralight, Retro biplane style, twinprop
Replies: 8
Views: 1641

Re: DIY ultralight, Retro biplane style, twinprop

He doesn't have enough power with those engines stock wind. The same ones were used a while back on a Lazair ultralight and they were marginal even after being rewound for more power. The Lazair is a really light aircraft with a huge wing area so it has very low power requirements. It is an interest...
by helno
Oct 06 2017 8:43am
Forum: Electric Aircraft
Topic: Farfles Electric Ultralight.
Replies: 196
Views: 20252

Re: Farfles Electric Ultralight.

craneplaneguy wrote:So while I had my head down looking at my feet I revved it up to load up the brakes and being a total newbie forgot to hold the stick back.....and up on the nose I went :evil:
Stick in your gut no matter what.

That Stratomaster looks good in your panel Farfle.
by helno
Jul 30 2017 5:50pm
Forum: Items for Sale - New
Topic: N.E.S.E. the no solder module
Replies: 275
Views: 28046

Re: N.E.S.E. the no solder module

I would stick with 3d printing for now but I would also find some way to reduce the hardware costs. Modularity is great but if I am paying the full price when I want a smaller module then the value gets lost. I have to say I was totally on board until you opened your store and I saw the retail price...
by helno
Jul 30 2017 3:34pm
Forum: Items for Sale - New
Topic: N.E.S.E. the no solder module
Replies: 275
Views: 28046

Re: N.E.S.E. the no solder module

As far as tooling goes you would decide what size is going to be the most common and make a mold for that. If you make a 6p enclosure the user does not need to install 6 cells if they want a smaller battery. I can tell you right now the price is what kept me away, and I have the 3d printer to make t...
by helno
Jul 30 2017 1:38pm
Forum: Items for Sale - New
Topic: N.E.S.E. the no solder module
Replies: 275
Views: 28046

Re: N.E.S.E. the no solder module

Going back to the injection molding discussion I have very recently turned a 3d printable design into an injection molded product. We did it because as you have found 3d printing is cheap for a prototype but is not capable of scaling up economically. The break even point in cost is around 1000 units...
by helno
Jul 16 2017 8:47pm
Forum: Items for Sale - New
Topic: Kepler Bottom Bracket Friction Drive For Sale (Finally)
Replies: 317
Views: 34597

Re: Kepler Bottom Bracket Friction Drive For Sale (Finally)

Finally got to do my first brief ride with this working today. It is shocking just how fast 500 watts will push a road bike. Probably going to tone that down to 200 watts or so to get some decent range. Still need to tweak the mounting a bit. Pushbutton throttle works but the 1000 microfarad cap tak...
by helno
Jun 28 2017 11:00am
Forum: Electric Aircraft
Topic: Farfles Electric Ultralight.
Replies: 196
Views: 20252

Re: Farfles Electric Ultralight.

I suspect you will be able to push that motor pretty hard with the massive amount of air cooling available.

I have seen it fly on an Earthstar Thundergull which is a much bigger and heavier plane. The Belite is likely half the weight.
by helno
Jun 28 2017 8:55am
Forum: Electric Aircraft
Topic: Farfles Electric Ultralight.
Replies: 196
Views: 20252

Re: Farfles Electric Ultralight.

The combined airspeed and altimeter were all I ever needed. Getting a low range airspeed indicator is important for aircraft like this since accuracy at the bottom of the scale is more important than at the top of it. The Stratomaster I have (its sitting on a shelf if you are interested in buying it...
by helno
Jun 27 2017 9:51pm
Forum: Electric Aircraft
Topic: Farfles Electric Ultralight.
Replies: 196
Views: 20252

Re: Farfles Electric Ultralight.

The downside of course is that you are always flying around with full tanks as far as W+B goes. It is less of a problem in a single seat plane but I rarely fill the tanks in my Cherokee because it limits what you can carry and slows you down when you don't need it. You have quite a bit going on in t...
by helno
Jun 24 2017 7:06pm
Forum: Electric Aircraft
Topic: Farfles Electric Ultralight.
Replies: 196
Views: 20252

Re: Farfles Electric Ultralight.

It should be OK. However the term "Dry weight" is being with modules removed if need be. Just be careful with "dry weight". Dale Kramer went that way with his electric Lazair (he as going to sell them so ensuring legal compliance was a necessity.) His opinion that the battery was fuel was allowed b...
by helno
Jun 24 2017 11:00am
Forum: Electric Aircraft
Topic: Farfles Electric Ultralight.
Replies: 196
Views: 20252

Re: Farfles Electric Ultralight.

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.