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  1. #5801

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    There is some notchiness when I rotate the shaft. One blade busted off the prop too.  Going to take it apart and see if its a bearing. I also noticed the fuel inlet snapped off the carb.  I am not at all happy with this mess. I took a closer look at the wing, and what a poor design, no wonder it snapped off, there was hardly any glue between the plywood and spars that formed the box.
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  2. #5802

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    Not surprised with the state of construction of most ARF's these days, built to a price by people who know nothing about model planes.
    As to breaking props, I drove a DLE 30cc into trees when a wing gave way. All from a very good height. Managed to cut the engine before impact and when I found it all the plane was stuck in branches and totalled but the motor was sitting in an open space still attached to the firewall, surrounded by trees, upright, prop still intact and fuel tank still attached. End result motor was fine and I was very glad I could remotely shut the engine off before impact. Yes id did recover all the electrics of which all were fine.
    β€œIn order to fly, all one must do is simply miss the ground.”

  3. #5803
    Ernie Misner's Avatar
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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    ahicks, what do you think about going to the giant Pulse?????

  4. #5804
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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    I have two 1800 mAh Nicads in mine and can fly all day (or it seems that way).....in fact I get tired while flying it as I've never run out of gas it must mean I'm getting old - been there - done that The trouble with the Sullivan mount is that you can barely get to the two adjustment screws...which thankfully were pre-set perfectly.
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  5. #5805

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)


    ORIGINAL: Ernie Misner

    ahicks, what do you think about going to the giant Pulse?????
    Sorry Ernie, no experience with it. I like the numbers for it and it looks nice! Have you seen the string here on them?

    http://www.rcuniverse.com/forum/m_89...17/key_/tm.htm

    When shopping for a 20cc plane recently I did check it out, but the Revolver owners enthusiasm for their planes ("Larger Revolver" in the ARF section) coupled with the price (which has now gone up again) convinced me to try one of those. Glad I did. Very happy with it. That's for me and my flying style though?



  6. #5806

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    I looked at the wreckage and found it to be either an assembly flaw or a design flaw. The spars had now support between the center rib and rib #4.   Going to contact SIg on this.  

    As far as the motor, is there a way to replace the fuel inlet, or am I stuck having to replace the entire carb? 
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  7. #5807

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    From what I understand, it's a press fit. It sounds like getting the piece that's in there out is the hard part. From there you just push in a piece of brass tubing that's the right size. Maybe with a spot of JB Weld on it?

  8. #5808

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    OK, I'll check it out when I get the engine cleaned up and disassembled. I am going to have to open it up to find out what is causing the notchiness. Its the only way I can describe it, it no longer rotates smoothly, but at a certain point I feel resistance a couple times, like a clicking that you cant hear.  The engine was mounted inverted, and struck the ground on one blade of the prop, head first.  I may have a bent crank, bad needle bearing, bent rod, who knows, it is so slight that I would need to mount the engine in a fixture, and use a dial gauge to detect it.  

    I am getting steamed up over this too, this was clearly not something I did, otherwise I would just move on as a dont do that stupid move again, but since this was caused by a defect, and something I had no control over, I am getting ticked that the engine got damaged.  I can deal with a stripped servo, but the engine damage has me steamed. 
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  9. #5809

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    Pull the rear cover off and see if the crank pin isn't rubbing on it? If so, not a big deal. Just reset the bearings to give you the clearance you're after. Don't forget the crank is used to pulling forward on the crankcase, not used to getting that prop shoved into it's face....

  10. #5810

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    Thanks, didn't think  about that, makes perfect sense too. I sure hope that is the case too.
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  11. #5811
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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    Check Goose's ProX260 Build Thread. He broke that nipple off also and shows his fix for that.

    So how aerobatic is the large Revolver? I know the Pulse's, at least my 40 size one, did all basic aerobatics, just not 3D. For some reason I was thinking the Revolver was more of a speed plane ..... ? I will check that link, thanks loads.

    Ernie

  12. #5812

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)


    ORIGINAL: Ernie Misner

    Check Goose's ProX260 Build Thread. He broke that nipple off also and shows his fix for that.

    So how aerobatic is the large Revolver? I know the Pulse's, at least my 40 size one, did all basic aerobatics, just not 3D. For some reason I was thinking the Revolver was more of a speed plane ..... ? I will check that link, thanks loads.

    Ernie
    Is that the one under 3D?

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  13. #5813
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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    http://www.rcuniverse.com/forum/m_10...m.htm#10609304

    Here you go acdii. It's a great thread with lots of info. That really ticked him off when he was all ready to fire it up and broke that fuel inlet nipple off.

    Ernie

  14. #5814

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    Thanks, I shot a PM to Goose and he shot back a reply.   

    BTW I pulled on the prop while turning it and it feels like the friction I was feeling goes away, so looks like it may just be the bearing. I will know more when I open it up.  I also found the rest of the plane today along with the ignition module. Going to see if I can open it up and reconnect the spark cable to it. Other than that everything else is still attached.
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  15. #5815

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    Guys, do you think a 14x9 MAS prop will be good for DLE 20? I will use it in a Seagull Super Tucano!

  16. #5816
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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    I would think so if you're looking for speed! Are you running any kind of a tuned pipe the help out with that? See if it will pull a 15x10 once you get it hauling.

  17. #5817

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    Guijs - 14x9 is underpropped for this engine. If you want speed try a 15x10 or 14x12.

  18. #5818

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    Folks, I forgot to mention that is a 3 blade MAS 14x9 prop! Still underprop? I am calculating with this http://personal.osi.hu/fuzesisz/strc_eng/index.htm

    9000 RPM, Air temp 77 and CF 1.

    I will use JTEC Pitts muffler.

    Thanks for the help in advance.



  19. #5819

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    In that case, not underpropped.

  20. #5820

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    3 blade will be killer man!   I have a 15x9x3 mas that I have yet to try out. If my motor has survived I may give it a whirl just for kicks.
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  21. #5821
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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    What will that JTEC muffler do for you compared to stock?

  22. #5822

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    Ernie - nothing as far as performance, a little different, maybe muted slightly, exhaust note. That's me though, and nothing very scientific for a test one vs. the other.

    microdon2 - switch to that 3 bladed prop at the field while 2 blade performance is still fresh in your head. Betting you won't leave the 3 blade on for long. Looks cool, but you take a big performance hit...

  23. #5823

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    Acdii, do you mean it will kill the engine, or, it will be "very nice"?Just to be sure!

    Ernie Misner, I bought the JTEC muffler just to add a better look to my scale plane! Not sure how much it will help on performance. But I will try to find out!

  24. #5824

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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    ahicks - I wasn't commenting on the performance of the three-blade prop, just that the engine would not be underpropped. The 14x9 prop would probably produce the same load as a 15x10. But agreed - everything I've read says that three-blade props are not as effecient (due to increased turbulence?) as a two blade.

    My understanding of mufflers - and I could be wrong, is that a better muffler will do a better job of lowering the decibel output but at the cost of some RPM. Am I wrong on that?

  25. #5825
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    RE: NEW DLE 20cc Gasser! (Data & Links 1st Post)

    A tuned canister or muffled tuned pipe will actually increase power with less noise. Small deflector type mufflers seem to rob rpm's at the cost of less noise modifications. There's the Snuffler (Troy built models?) that sticks into the muffler outlet costing a couple hundred on the top end they say.


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