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  1. Ratking

    ice sheet losses in Greenland and Antarctica reach new highs

    Try again, not good enough. Dont listen to what they say then, but what they do. There is not a single plant that will benefit from going below 400ppm co2 as you guys hope for. The only outcome is less food and vegetation
  2. Ratking

    ice sheet losses in Greenland and Antarctica reach new highs

    First of, you don't have a clue about how plants use co2, that is evident when you try to explain the function and plants use of it(all of you). Please seek some real information, maybe from someone that uses co2 to produce food for a living. They may know a tad more than you religious fanatics...
  3. Ratking

    80 new EV models from VW by 2025 !

    O'boy Luke, did not see this coming. Both using fake numbers and taking the moral high ground, that is a new low. Just as I see in religious movements, I grew up in one, so I should know. I don't know where to start, since the whole post is based on a lie. Do you really think that young kids and...
  4. Ratking

    80 new EV models from VW by 2025 !

    You are right it isnt. Here is how it is: My VW 2L diesel gets 10km per 0,7l. That is 850km per filling. My brothers new BWM i3 gets 190km on a fully charged battery. If you go above 80km/h that number will plummet. It cannot haul any loads, it does not have any "supercharger" and since Norway...
  5. Ratking

    80 new EV models from VW by 2025 !

    I fully accept that I don't need to understand how everything works, but there is still a fundamental problem of lack of energy storage, that easily can be understood by everybody. I would love to be wrong, because I have so many plans for electric projects, flying, under and over water, but it...
  6. Ratking

    80 new EV models from VW by 2025 !

    The energy density of gasoline is 13 000w/kg, the best batteries are less than 200w/kg. How do you propose that a energy source that is over 1/65th of gasoline can ever take its role? As today, only cars transporting people is doable. Load a Testa with a 2500kg trailer and see what is does. No...
  7. Ratking

    Kelly vs Sabvoton Controller review 2017

    How did you manage to unlock the controller? Is there a update or what must be done?
  8. Ratking

    Custom aluminum frame with 2.8kwh capacity

    Thank you :) I don't like how the wires exit the hub particularly, they have too little space. Maybe there is a better solution, but for now I will just make a slotted spacer that I will weld on so the wires don't need to be forced down as much. I actually like the look of the front wheel...
  9. Ratking

    Custom aluminum frame with 2.8kwh capacity

    I just wrote a long update with many details, just to see that the page updated and all dissapeared, oh well. I will re do a short summary. After a long week using all my spare time and more than that, I finally managed to take a test drive this morning. It has been a long couple of days tryng...
  10. Ratking

    Custom aluminum frame with 2.8kwh capacity

    You thought I had given up didnt you ;) ? I helped my little brother with his GNG kit and finally got the motivation needed to start again. What stopped me last time was lack of motivation to start truing the spokes and fit the battery pack to the bike. As always, I try to stuff too much in...
  11. Ratking

    ice sheet losses in Greenland and Antarctica reach new highs

    You don't know me, nor my intentions. You lack understanding on how written discussion work. It is often less important to answer questions to prove the questioner wrong/right, but to show other readers your answer or reason. By your logic, you decide who is worthy of an answer or not. I have my...
  12. Ratking

    ice sheet losses in Greenland and Antarctica reach new highs

    I have a few questions regarding your post, if you want to answer them: How do we know that the "natural" co2 production is stable? Both in production and use? It seems foolish to claim that nature produce x amount of co2, not bound by year. There are records of much higher co2 gas earlier in...
  13. Ratking

    Axiom: a 100kW+ motor controller

    -Dumb question alert- I need a controller in the 20kw segment, but there is no good option for what I need. Optimal controller: 80v max 275A semi continuously(15kw continuously, 22kw peak, for climbing) Sensorless(linear load, propeller in air, should not have any startup problems)...
  14. Ratking

    LMX P2 : Freeride trials motorcycle frame development

    Extremely well done, you have achieved what many dream of, making a living from what you love to do. Congratulation :D
  15. Ratking

    What motor would you choose for a 25kw paramotor setup

    Hello, Been busy with other stuff, but have not forgotten this project at all. Been talking to several experienced paramotor pilots and gathering information about what is needed. Got input on a frame design that I really liked. Every parts is cut out of aluminum with water or laser. Just bore...
  16. Ratking

    Custom aluminum frame with 2.8kwh capacity

    Hello, Been a cold winter in Norway, so I did not have any motivation to do any more work. But the last few days the sun and asphalt has dried up and I want to get this going. Where I live, it is perfect to use a bike to get around, so this is high on my priority list. Did manage to re lance...
  17. Ratking

    Thread for new battery breakthrough PR releases

    http://pubs.rsc.org/en/content/articlelanding/2016/ee/c6ee01134a#!divAbstract 350wh/kg is not too shabby ;) I hope they can produce cheap cells with that capacity soon
  18. Ratking

    What motor would you choose for a 25kw paramotor setup

    Just got my package with pulleys and propeller. I choose HTD 5M 25mm since I got good experience with it from earlier projects and it is cheap for what it is. A bit on the heavy side, but I will trim them down a lot. Gearing will be 1:2.1 As you can see, the 130cm propeller is a bit larger than...
  19. Ratking

    Custom aluminum frame with 2.8kwh capacity

    Hoho, that was funny :D High pain threshold on that guy
  20. Ratking

    Custom aluminum frame with 2.8kwh capacity

    It was not that painful before the doctor used a ordinary toothbrush to scrub out the dirt. But that did not help the pain :D I am glad it worked out, because I worked with the wound open for 12h before i went to the hospital. I did not want to ruin a day at the workshop, but in hindsight I...
  21. Ratking

    Custom aluminum frame with 2.8kwh capacity

    More work has been done, but mostly planning and tinkering around how to safely incorporate a battery pack with enough compression. When I first made the frame I had four 90 degree aluminum angles welded to the frame that was there to hold the cells in t position, but I did not like the design...
  22. Ratking

    Custom aluminum frame with 2.8kwh capacity

    I bought a 20 mm front hub with 36 spoke holes, they don't come cheap from Hope. Did not like to bore out the hub for bigger spokes, feels wrong :/
  23. Ratking

    1MWh (1000KWh) battery packs for large EVs

    But we are talking large scale, where maybe half a city is charging vehicles, and since people have habits you can bet that they will charge at the same time. That means GW of surge power draw
  24. Ratking

    What motor would you choose for a 25kw paramotor setup

    Sorry for the lack of update, the progress is as following: I bought several smaller propellers from Hobbyking, they where 27", 28" and 29". The plan was to measure thrust with the different sizes and all other usable data. After talking with some people with more experience with propellers I...
  25. Ratking

    Custom aluminum frame with 2.8kwh capacity

    After a long break, due to lack of will to measure custom spokes for the back and front wheel, I am finally back :P This should have been done for several months ago, but it is now bought, delivered and awesome. I did actually measure the right length and the chineese company delivered nice...
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