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I bought the series connector at WSEF 2 weeks ago. Now it's off to the LHS for real deans! |
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Latest blog entry: Durafly Vampire 70mm
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Joined May 2011
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I'm still seeing a lot of talk about failing retracts and the wood retract mountings........I'm wondering why ?
If you make perfect landings, the EFlites (with or without the TAM's struts) will work great........but make just one less than perfect landing, especially on grass.............. ![]() ![]() I still don't understand why EFlite would choose to use their 15-25 size light-duty retracts and the very light-duty wood retract mounting. The 15-25 size is only good for a MAXIMUM weight of about 7 pounds ?? It seems that most of the Habu's are coming out at over 7 pounds. Was this EFlite decision made just to keep overall weight to a minimum ? ![]() I'm still planning on using the 60-120 EFlites for my own Habu. They are good for up to 15 pounds. I'm curently using three different sets now on a Hangar 9 Phoenix 7 (about the same weight as the Habu), an EFlite Deuces Wild and a TopFlite P-51. So far they have been problem free and very dependable, even after having a number of less than perfect landings. The Habu will require pulling off the lower wing sheeting and some additional redesign and fabrication on my part, but not too difficult a task. The only problem will be a little extra weight, but they should be very dependable. Maybe I missed it, but I've read this entire thread and don't remember seeing any pictures of any other retracts besides the light-duty EFlites ? Has anyone added any stronger retracts ? Any pictures ? When I convert mine I promise to take a lot of pictures..........just need to get off of my butt and get started. Hey.......wait a minute.......this is summertime here in Michigan......summertimes for flying, not building ! Joe M. |
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http://www.horizonhobby.com/Products...ProdID=EFLG330 - Birger
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Latest blog entry: DSM2 for Futaba with Micro Trainer Port
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Joined Nov 2005
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JoeMamma,
I can say that I have punished the LG on this bird in grass with NO issues. I am using the Tam struts. The springs successfully take out the energy of a hard landing. No bends, no breaks. The mounts in the wing and nose have held firm. I cannot speak to the stock wires, but the Eflite retracts will take a beating and are fine for this 7 lb bird. I even hit a boulder exposed at the end of the runway that sent the Habu 3 feet in the air!! I have done the embarrassing bounce - bounce - bounce - bang -flop without a problem. I am satisfied with the gear, but would not fly on grass without the Tam struts. |
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I think as we move forward in these builds is that we might have to go back to what have worked best and lighter. Tamjets air or 602s retracts, with these you can just add brake for those short runway at just a fraction of weight added.
For the wing I would add ALOT of thin CA around the inside area of the wing and spars inside. Let it wick all over the inside of the spars. So you don't rip out the wings at $50 a pop! ![]() @Sunbather, I just bend out a new loop from the spring, cut off the old loop and adjust according. But you right there is no room for play in those wheel well Danny |
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Take the fan out and hook 4s to the fan power lead. Listen for the beep to see if it arm. If nothing. Send it back. It need for inspection. It could be ESC. Motor only goes bad if you over headed. ESC is likely can goes bad for no reason. Either way. If never been in a crash. It still under warranty. |
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Keep in mind that the Habu comes with a set of struts that they want you to use for the retracts. The only difference in the weight rating on their retracts is the diameter of the strut wire. So if the 15-25 are rated at 7lbs max but they are giving you a larger strut wire that lets say they rate up to 8-9lbs then that is their solution. I have beat the crap out of a set of 15-25 size retracts in an A-10 that i had and they held up fairly well. I did crack the case on one of them but man it was a brutal landing on a really rough dirt runway, cant really blame the retracts. The wood rail sounds like a prduction issue, might be a good idea to fill in any glue gaps with some hysol or 30 min epoxy to strengthen them up a bit. If the gap is really small warm up some 30 min epoxy with a heat gun and drizzle it down into the gap so it gets in there really good, I bet that would solve the problem. |
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