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  1. D

    What is the "best" auto engine for aircraft use in the 250-350 HP range?

    Hi everyone, My friend and I are working on a one-off design similar to this: Bienvenue sur LH Aviation.com The main difference is that ours is going to be bigger, guessing 200-300 HP, main mission is fast long distance XC. The neat thing about that layout, with the engine in the middle, is...
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    New airplane design - the two decade project

    Hi everyone, I just took a new job, moved from the aerospace industry to the can making industry (food cans, beverage cans, etc). Quite the change, but definately for the better from the job stress point of view. As my wife says, "you're happy again!". If you search around the forums here...
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    Galloping Ghost crash Reno 2011

    Reno Nevada Air Race Crash Report - YouTube Went straight in...wow.
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    How to make a building/flying partnership work

    Hi everyone, I had been planning on building a Mustang II, but I took a long, honest look at the cost and realized it's out of my league for now. That said, I want to get airborne sooner rather than later with the MII. I've been talking with a couple of friends and we're considering getting a...
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    Viking Engines

    Does anyone have any experience with the Viking engine? Thanks! Dustin Rockford, IL USA
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    Yet another "which airplane" thread

    Hi everyone, This is probably the 2nd or 3rd time I've posted a thread like this in the last few years, but my situation has changed some so I'm looking for more advice, in particular from anyone who has built any of the planes I'm about to mention. I'm currently scratch building a Mustang...
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    Facet pumps

    Does anyone know, are these pumps rated for continuous duty? 40131E FACET INTERRUPTER TYPE PUMPS from Aircraft Spruce FACET ELECTRIC FUEL PUMPS from Aircraft Spruce I'm planning on runing an ECI kitengine with a Rotec TBI injector and need a 6psi source. Seems like one of those would be...
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    Dustin's Mustang 2 build website

    Everyone, I'm just getting going on my Mustang II build. I've put up a google site to show progress and document the build. It can be seen here: https://sites.google.com/site/mymustang2project/ I've got a solid 12 hours in (out of 4000 hours expected. "Solid"...:gig:) Comments are...
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    Auto engine for a Mustang II

    Hi All, I'm going to be starting a Mustang II in a few months (I can't remember how many times I've said that exact sentance :mad2:). As of now, I'm planning on putting a Mazda Renesis in it. Plan is for a turbocharger because the MII is a good high altitude cross country plane and a turbo...
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    Renesis ignition?

    Hi everyone, Does anyone out there make a self-sustaining ignition unit for the Renesis, much like a magneto that doesn't need electrical power to keep working? I'm considering using mechanical fuel injection for my Renesis (the Rotec TBI) that can work gravity fed if need be, so if I found...
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    another "which airplane" thread

    Hi everyone, I've been planning on building a Bearhawk for quite some time, and it's definitely going to happen sometime in the next 10 years. I looked at finances a couple of nights ago, and realized I'm going to have to set the Bearhawk aside for awhile. So, I'm looking for a plans built...
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    Form block question

    Hi everyone, I'll be starting a Bearhawk sometime soonish and have a question related to the wing rib formblocks and possible "undercutting" on the flange side. Technique 1) Make a formblock, radius both sides, pound ribs. Due to spring back in the aluminum, the ribs flanges won't be at 90...
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    Electric Driven Constant Speed props

    Hi everyone, I'm planning on putting a Renesis (mazda rotary) conversion in a bearhawk. I am either going to use a belt PSRU or rotaryaviation's PSRU. Neither come with an oil system for a hydraulic PSRU. I know of three electric CS props - IvoProp, MT, and Vesta. IvoProp has been "iffy" on...
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    Civil Air Patrol

    Hi everyone, Just out of curiosity, what's everyone's take on the CAP? I've been looking for some place to volunteer and do things like that, the CAP might be right. Especially given the whole "going to get my pilot's license soon" thing. Thanks! Dustin
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    Starter solenoid power

    Quick question...in a typical GA aircraft, does the power for the starter get routed through the solenoid that controls the rest of everything, or not? I know they can't handle the amps, but for the intermittant use that is a starter, maybe it would be OK? What's the logic behind the setup...
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    Considering a Rotary conversion, need help

    Hi everyone, I'm getting started building a Bearhawk. For those of you who don't know, it's a 4 place STOL / "utility" airplane. I'm intending on making use of the STOL part of that. The design can use 160HP-260HP...the 260 is actually limited by weight, not thrust. I would like to get...
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    Folding prop?

    One of the cool technologies that RC airplanes have is folding props...you shut it down, the prop folds back and cuts the drag by quite a bit. Is there anything like that in the "big plane" world?
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    Scratch design and build thread

    So, I haven't ever built an airplane (starting a plans Bearhawk in the next few months), nor have I designed an airplane before. After the Bearhawk, I'm probably going to build a small bipe for my wife (thinking one of the Fisher products). After that, I want to build one of my own design. I...
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    CEASIOM software

    I ran a quick search and didn't find anything. Does anyone out there know anything about Ceasiom website? Looks like it might be useful. Apparently you need a copy of Matlab (R2008a or later). Runs in windows or linux, and is 100% free (other than needing matlab). ...I wonder if there is...
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    Dissimilar aluminums for ease of manufacture

    Hi everyone, Quick question. Aluminum airplanes are typically made from 2024-T3 sheet aluminum...it's one of the stronger aluminums. 6061-T6 is the other common (in the USA) alloy, which is down on strength some compared to 2024. I've read about some scratch built airplanes using 6061...
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