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Type: Posts; User: MTK

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  1. Thread: Ys 185 dz

    by MTK
    Replies
    50
    Views
    2,667

    Let me suggest that you make your own from an...

    Let me suggest that you make your own from an XOAR or Falcon ELECTRIC woody. Shape it like an APC, thin the blades down and sharpen the TE. Then cover it with 3K carbon cloth and epoxy, and bag it....
  2. Thread: Ys 185 dz

    by MTK
    Replies
    50
    Views
    2,667

    Well, you can always fly gas, as I do. A 240 ml...

    Well, you can always fly gas, as I do. A 240 ml tank will fly about 12-13 minutes or about 1 1/2 sequences. And gas is much less dense than glow so the weight gain is about 6 ounces. An 8 oz tank in...
  3. Thread: Ys 185 dz

    by MTK
    Replies
    50
    Views
    2,667

    From personal experience, not everyone is...

    From personal experience, not everyone is thrilled with our ability to fly 20 minutes on a tank of gas. Then again, my situation could be unique....
  4. Thread: Mark 180g

    by MTK
    Replies
    4
    Views
    113

    I agree with CM....8200 on an 18x10 is fine on...

    I agree with CM....8200 on an 18x10 is fine on muffler.
    My Syssa 180HP runs similar numbers on an 18x10 or slightly less (100rpm?).
  5. Ernie, here's the practical answer from someone...

    Ernie, here's the practical answer from someone who has real experience with pipes.......don't fret it so much. There is no magic involved per se'. The tuned pipe's reflector baffle is at a different...
  6. Replies
    11
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    229

    Hmmmm, no ignition sensor? Is this a Glow-Gas...

    Hmmmm, no ignition sensor? Is this a Glow-Gas fuel hybrid that uses a glow plug?
  7. Replies
    554
    Views
    74,811

    The DLE35R is a very good engine. Use the rear...

    The DLE35R is a very good engine. Use the rear exhaust header (if you want a pipe on the engine) for the OS140RX from Macs. I know they show a header specifically for the DLE, but the OS header works...
  8. Replies
    554
    Views
    74,811

    I want that GT35 as a rear exhaust please, with...

    I want that GT35 as a rear exhaust please, with the same power or a bit more than the GT33 puts out. I want to turn 22" props on it. The 33 turns a 21x10 narrow APC okay (piped set-up) but I would...
  9. Replies
    29
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    912

    The Walbro Klunk does a fine job. Well, I...

    The Walbro Klunk does a fine job.

    Well, I discovered the Tygothane C210 formulation several years ago and discussed the finding in these pages. I currently sell the 1/8" x 3/16" size clear tubing...
  10. Replies
    29
    Views
    900

    Karl, you're welcome. Merle Hyde invented this...

    Karl, you're welcome. Merle Hyde invented this type of mount 25 years ago and it still a great device.

    The key thing that I've discovered is the best way to hold the rubber on. We tend to use...
  11. Replies
    29
    Views
    900

    Karl, Soft mounting smaller gassies is fairly...

    Karl,
    Soft mounting smaller gassies is fairly straight forward. "Soft mounting" means installing the engine on rubber isolation. The rubber is then attached to the firewall.

    I have a thread here...
  12. Replies
    419
    Views
    56,060

    Sticky: Mike did you get the parts yet?

    Mike did you get the parts yet?
  13. Thread: engine baffling

    by MTK
    Replies
    7
    Views
    179

    The treatment of the exiting air will dictate how...

    The treatment of the exiting air will dictate how much exit area is needed. The old rule of thumb of exit = 3X entry is okay, but if you model can't handle that rule, then hooding the exits or...
  14. Replies
    3
    Views
    127

    Right!!! A YS185 4 stroke on tuned pipe. You...

    Right!!! A YS185 4 stroke on tuned pipe. You might want to smoke that pipe first. Couldn't resist, my apologies in advance.

    Seriously, having flown a piped DLE55 on soft mount I can say with...
  15. Thread: engine baffling

    by MTK
    Replies
    7
    Views
    179

    I don't agree. There are engines with relatively...

    I don't agree. There are engines with relatively short fins that benefit from baffling. And even standard depth fins when used in very warm places, benefit from baffling.

    I found some 2 pound...
  16. Thread: Evolution 62 EFI

    by MTK
    Replies
    93
    Views
    3,844

    The non-mechanical types among us may not be as...

    The non-mechanical types among us may not be as certain that "usually" turning the screw to the right, screws it in, and turning it left, screws it out. Also may not quite have the fact down that...
  17. Replies
    419
    Views
    56,060

    Sticky: Mike, the parts are on their way. I also sent...

    Mike, the parts are on their way. I also sent along a length of gasoline tubing I discovered a few years ago. This stuff is so good I actually sell it. I sent you enough to outfit one set-up. If you...
  18. Replies
    70
    Views
    20,671

    If it's epoxy, you should be able to heat the two...

    If it's epoxy, you should be able to heat the two and separate them. A real hot air gun (not wrinkle kote) would probably be the best bet
  19. Thread: Evolution 62 EFI

    by MTK
    Replies
    93
    Views
    3,844

    Hmmmm! Pete will it accept a 3S Lipo? A 2S...

    Hmmmm! Pete will it accept a 3S Lipo?

    A 2S Lipo has a max voltage of 8.4 volts. It takes a 2000 ma maybe an hour or so at 300 ma draw to drop to 7.4.
  20. Thread: Ys 185 dz

    by MTK
    Replies
    50
    Views
    2,667

    Adrian, I've been using the same prop on the OS...

    Adrian, I've been using the same prop on the OS GT33 gas engine. I get practically the same numbers as you indicate with the 33 also brand new.

    It's a terrific prop except for its weight. 175...
  21. Thread: vvrc 40cc twin

    by MTK
    Replies
    43
    Views
    3,758

    Hi Ron, I'm planning to use this one in my new...

    Hi Ron, I'm planning to use this one in my new design currently on the bench. Twin pipes for it and probably a 20.5x10 or 12 depending on which it likes. The soft mount is smaller and lighter than...
  22. Replies
    419
    Views
    56,060

    Sticky: My pleasure Mike. You can send me a check for 25$...

    My pleasure Mike. You can send me a check for 25$ or Paypal by accessing my email address. Don't forget the return address.

    On the length of flights, I've had one local complain vehemently because...
  23. Replies
    419
    Views
    56,060

    Sticky: Hi Mike, It looks fine. Don't forget the...

    Hi Mike,

    It looks fine. Don't forget the extension. The reflector baffle needs to be 27" from the exhaust flange, following the curve of the header. I'm using about a 3 1/2" extension on my...
  24. Replies
    1,044
    Views
    150,522

    This brings back memories. I built one some 35...

    This brings back memories. I built one some 35 years ago and powered it with a K&B 40. I used silk and dope for finish back in the day when I was just learning the art of covering and finishing in...
  25. I wasn't satisfied with teflon (too many leaks)...

    I wasn't satisfied with teflon (too many leaks) or silicone (too many blow outs). So I decided to invent my own solution to this problem. Longevity has been outrageous and I am still using the...
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