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  1. Alky6

    Scale 50cc Scratch Build From My Own Design Revisited

    Wow! Looks incredible!!! It will almost be a shame to cover up all that beautiful work!
  2. Alky6

    3D Cbarnes 3D Slab Thread

    Sweet! I'm in!!
  3. Alky6

    IMAC JTEC 2.7m Extra 300CS

    That's a bummer. Hope things improve for you soon!
  4. Alky6

    The 'What did you do in your workshop tonight?' thread

    HA! I am glad I saw this. I was getting a little concerned when I saw "Tranny yellow" written on your template for the canopy. :laughing:
  5. Alky6

    IMAC JTEC 2.7m Extra 300CS

    Looking for the "that sucks" button, but can't find one. What is driving the change?
  6. Alky6

    IMAC JTEC 2.7m Extra 300CS

    Can't be soon enough!
  7. Alky6

    The 'What did you do in your workshop tonight?' thread

    :fist_pump:
  8. Alky6

    Battery Charger Recommendation

    Have the ichargers as well, the 206b and 306b and have worked flawlessly for me. Also use them with a paraboard from buddyRC. can parallel charge up to six batteries at once. However, I have no other experience with any other brand of these multi-chemistry computerized chargers, so I cannot...
  9. Alky6

    Altitude: how it affects fuel/air ratio

    You are right in line with this (sloppy rich, of sorts). IMHO and my observations: I have concluded that when an engine is on the ragged-edge it will detonate or pre-ignite. Consider first an alky engine. Methanol has a very wide usable stoichiometric ratio (SR). Methanol also has a very high...
  10. Alky6

    Altitude: how it affects fuel/air ratio

    Considering this some more. Pressure differential across venturi will remain the same. Pressure available to push fuel through the needles is also reduced proportionally to the pressure (hence your column of air). However, if we assume flow of a liquid through an orifice, that is on the square...
  11. Alky6

    3D phenolic control horns

    I am using these from JTEC on my 35% extrra. http://www.jtecrc.com/composite_control_horns.html
  12. Alky6

    IMAC JTEC 2.7m Extra 300CS

    Thank you for your kind words.
  13. Alky6

    IMAC JTEC 2.7m Extra 300CS

    Lol. I used extra, just for you!
  14. Alky6

    Altitude: how it affects fuel/air ratio

    Agreed: pressure also reduces thereby reducing the pressure on the fuel to push it through the needles (jets) of the carb... I'll throw another wrinkle to this though. In actual application of racing outboards, I would "simply" add nitromethane to compensate for power loss in altitude...
  15. Alky6

    IMAC JTEC 2.7m Extra 300CS

    Going to try and get caught up on my progress. My dad always says that progress is made steady by jerks. Not sure how to take that... LOL. Elevators: Reset incidence on the elevators and got them cut out and LE and TE hinge line balsa glued on. Used a 1/4" thick aluminum bar and made a robart...
  16. Alky6

    Altitude: how it affects fuel/air ratio

    OK. 7% less is the change from SL to 15oo' ASL. air density: 0.0765 lbm/cuft at SL .071+- lbm/cuft at 1500' ASL you will see larger fluctuations in atmospheric, RH, and temp at the same elevation throughout the year than you will changing from 0 to 1500' ASL, IMHO. That's based on results I...
  17. Alky6

    Altitude: how it affects fuel/air ratio

    I am guessing 3-5% less. I don't have that info in front of me, but I could look it up later. VVRC twin on your EF?
  18. Alky6

    IMAC Carden Pro 124 Build, My Dream Plane

    I am soon to find out. @IMAC FANATIC and Dave Dixon both recently used monokote on their 40% planes (one's a JTEC and the other a Carden Pro) and both turned out beautiful and have continued to over the last year. I have mostly used ultracote, but going to give monokote a try on my 35% JTEC. I...
  19. Alky6

    Hello From Ontario

    Welcome! Glad you decided to take a look!
  20. Alky6

    EF 60 Laser

    As a follow up. Glacier 6S 3300's on the torque motor with a 15x6 APC prop works really well. I can fly the piss out it and land after 6.5 minutes and have 22.3v on the packs. The 60" extra is an amazing plane. Also used the Hitec 7245's on a 2 cell lipo. A 450mAh 2S battery after three flights...
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