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Activity Stream
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lv2plyguitar added a post in a topic my new power plant
This will be a great engine for vertical flight.
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BryceKat added a post in a topic Mounting battery in tail
Hi Jim
Search YouTube for Avid Biggin. I posted a couple of videos on how to do this. Bryce
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akflyer added a post in a topic my new power plant
The pipe for the sled runs over the top of the engine as the cylinders are layed back at and angle. The exhaust and intake are on the same side too. I have a couple of stock exhaust systems for the 800 so that is why I was going to use a stock system on the test stand to set the base line, then cut and twist the exhaust around to try and stuff it inside the cowling without loosing any RPM from the baseline runs. I think it can be done but I may have to make a new cowling ala super cub style. Aluminum is easy to work with if I have to go that route.
In order to keep the thrust line and the cowling height that I have now (avid cowlings are lower and give much better visibility over the nose) I will have to mount the engine inverted just as it is now in the Avid. I dont see this being an issue sans a few things I will have to deal with on the power valve cables so they dont get gummed up with the old oil. I think I have a good plan for those, and it may even be a non issue, but I do have a plan if they do start sticking. I really wish I had a dyno and a good 2 stroke exhaust guy close to play with this. I want the stock super smooth, linear power that this engine exhibits in the sled. It is like an electric motor. super smooth and linear with no hard hitting "pipey" spots.
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dholly added a post in a topic Mark IV For Sale
NYC99LA030 On November 28, 1998, about 1530 eastern standard time, a homebuilt Kitfox IV, N9724F, struck a deer while landing at Royalton Airport (9G5), Gasport, New York. The airplane was substantially damaged, and the certificated private pilot was not injured. Visual meteorological conditions prevailed, and no flight plan had been filed for the personal flight that departed from Royalton Airport about 1445, and was conducted under 14 CFR 91.
In the NTSB Pilot/Operator Aircraft Accident Report, the pilot stated:
"...on final on runway 25, flying directly into the sun. Flared out for a wheel landing at an airspeed of 55-60 MPH. Just as the main wheels touched down on the runway it felt as if the front of the aircraft exploded, the plane nosed over and the nose skidded along the runway for some 75 feet and came to a stop on the right side of the runway...I got out the right side door, and saw a dead deer about 30 ft off the right side of the runway. Three witnesses told me the deer was running and jumping from my left to right and jumped into the front of the aircraft. The deer weighted about 150 pounds."
An inspector from the Federal Aviation Administration (FAA), reported that the lower fuselage in the vicinity of the firewall was crushed in, and the propeller blades were broken off. In addition, the engine mounts were bent.
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dholly added a post in a topic Mounting battery in tail
Jim, here's what I did on my Mk-IV. Not quite all the way to the tail, and accessible through the baggage locker floor which was installed with nutplates.
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1avidflyer added a post in a topic Buuilding wings for model 2
The other option is buying a set of used wings if the Kitfox 2 deal is good enough, another set of wings could be found. I actually have a set of Avid Heavy Hauler wings hanging on the wall of the hangar that I will eventually get rid of. They have 14 gallon tanks in each wing. They have some damage, mostly just the rib tails broke off which is repairable. I had planed to fix them, cover them and then sell them. Haven't got to it yet. They should fit on a Kitfox, spacing on the wing carry through tubes is the same on both planes (27 1/2") You might have to customize the lift struts to get the right dihedral, but I'm not sure on that. I don't think Avid ever changed the lift strut location on the wings in their different models, I do know the ones on the Kitfox 3 are further out on the wing then the Kitfox 1 and 2 were. First Kitfox was a modified copy of the Avid, so many things are the same on these plane, especially on the early Kitfoxes. Take care, Jim Chuk
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Av8r3400 added a post in a topic Buuilding wings for model 2
Assembly instructions would be easy to get, either from a fellow builder or an oem. Spars and drag tubes again easy to get from your local aluminum supplier. Nothing special about the fabric. Used or oem unassembled internals can be found if you look.
New Flapperons, ribs, fuel tanks will all need to come from either Airdale or Kitfox, though. Drawings for these don't exist.
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garage monster added a topic in Avidfoxflyers General Hangar
Buuilding wings for model 2Are there plans to build new wings from scratch? I have a lead on a model II with no wings.
Thanks
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EDMO added a post in a topic Mark IV For Sale
Richard,
Lots of folks fly the 582 - Joey and Leni fly constantly in all conditions - The 2-strokes need someone who understands how to fly them and care for them - Lots different than a Continental C series.
If you could find a good 912 or Soob, you might be more comfortable with it, IMO - I dont fly 2-strokes, but I sure respect those who know how to keep the fan turning with them.
ED in MO
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EDMO added a post in a topic my new power plant
Leni, You said the pipe was on top, and you had to modify or make new one - I was wondering, if you have EFI, then you could modify your mount and flip the redrive, and mount this upside down or like a Kitfox, or even sideways - takes lots of luck or engineering and testing to get a good pipe for a 2-stroke.
Yes, the 4-strokes are great - I can run strait pipes or short glasspaks, or whatever, and it dont mind.
Ed in MO
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C5Engineer added a post in a topic Mark IV For Sale
I premix my fuel at 100:1 using high end synthetic Amsoil mix oil. The standard with regular oil is 50:1. When going cross country I run 100LL for a whole trip although when at home I run 92 Octane Chevron Gas. 100LL won't hurt things. As far as reliability and and cross countries...sit back and watch these.
California to Idaho in an Avid
10 Day 1500NM trip to Idaho and Back
Do I trust my 2 stroke...Hell yeah!-
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IFMT added a post in a topic Mark IV For Sale
I'm still curious what a mark IV with the 912 empty weight is. Is it 50 lbs lighter than a sube? is it 100 lbs lighter? And how does this translate into performance? Anybody out there reading this actually flying one? Cheers gents.Ben
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C5Engineer added a post in a topic my new power plant
Get er dun! I am coming up on rebuild and NEED more power
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EDMO added a post in a topic Mounting battery in tail
Jim,
Someone may have better ideas, but if you look at my "Foxy Flapper Fotos" in Kitfox IV section, I added support tubes on the bottom and replaced part of my wood stringer on the side with tubing. Going to make a pan for under the battery, and an aluminum door pivoted at the front.
ED in MO
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EDMO added a post in a topic Mark IV For Sale
If you dig thru the posts you will find one pro and many cons about the 583.
The biggest cheap leap you could take up from the 582 would be Leni's 800 if he is successful with the conversion.
ED in MO
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EDMO added a post in a topic Mark IV For Sale
Thanks for the honest weight of the 912.
Ed in MO
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Mendlerr added a post in a topic Mark IV For Sale
Any way to up the power of the 582? The 583 conversion does not sound ideal to me but is it successful?
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Av8r3400 added a post in a topic Mark IV For Sale
Because no one ever weighs their FWF. That's why.
I have a 912UL on the stand. With engine mount, muffler, carbs, oil in the tank etc ready to bolt on. No prop, no coolant or radiator. Weighed tonight. 162#.
The 582 has a proven reliable record. The 670, not so much. I can give you a list of people as long as my arm who have gone from the 582 to the 670 to get more power. The next step is to the 912 because the 670 was an unreliable money pit at best and a noisy death trap at worst.
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Emory Bored added a post in a topic The 912UL
I still haven't made it over there. My mother had a stroke, the owner is incredibly busy building engines for Ferrari Challenge cars and I just bought a new to me pickup because mine took a shit. Good news is I may have a possible looker at the Luscombe. I'm outa cash otherwise so we'll see. In a couple of the photos the bottom of the wing looks to have some camber in others it looks pretty flat. Joey thinks the speedwings are permanent dogs but Leni thinks with extensions they can work out just fine. Leni's world is one I used to live in; density altitudes in winter are below zero. Joey flys where I fly.
Can a guy get ahold of a Stol Heavy Hauler wing out there??
Dan
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1avidflyer added a topic in For Sale and wanted, you got it, I want it
Mounting battery in tailHi all, I've been working on the bent parts in my first Avid MK IV, and have been thinking it would be a good idea to make a battery mount and door to access it near the tail to help out the CG a bit. I've got a number of ideas, but it's often helpfull to see how someone else did it. Anyone have any pics they can post for me to see? Thanks, Jim Chuk
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1avidflyer added a post in a topic Kitfox 1 kit
Thanks for the info Paul! Jim Chuk
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Mendlerr added a post in a topic Mark IV For Sale
A new avid just popped up on barnstormers. It's intriguing but I don't have much info on it
Edit*. Wow did some research on the blue avid that just came up on barnstormers. Major structural damage, prop strike, broken right wing, twisted passenger cabin. No wonder it seemed so cheap, haha.
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Mendlerr added a post in a topic Mark IV For Sale
Reliability, how has it been. Can you run 100LL if necessary. How do you mix the oil, I've been told 50:1 and 40:1. Would you trust the 2 stroke rotax (582) on a long cross country?
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EDMO added a post in a topic Mark IV For Sale
Randy, "SuberAvid" and some others could probably give you lots of comparison info too, since they fly both 2 and 4 strokes.
ED in MO
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Guest added a post in a topic Going Ivo IFA
Yahoo! What fun!
At high altitude when my 582 could be operated at full throttle and not exceed approx 75% of its power, I would set the prop to run at 6000 and just run wide open and lean it to get egt's as high as I could, (usually in the 1100's because I limited max leaning by choosing a large reference orifice in the mixture control). At high altitude the plane was pretty anemic, especially on a high density altitude day. Even at 6000 RPM full throttle in level flight, the nose would seem a bit high and the 582 would hum along putting out barely enough power to keep the plane in the air and run so quietly and smooth it was erie.
One time I took it up over 14,000 feet just long enough to get there. It took a long time to get there and it was actually creepy how quiet, smooth and anemic the engine was!
ChrisB
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