glazier808

My Feedback: (1)

Dang he must be smooth as silk on those sticks then, because his craftmanship is beautiful!

Casey

Thunderbolt47

My Feedback: (8)

Hey Zip, Nice project and nice flight. I to thought it look fine. I had a chance to fly a 49% flybaby. It looked like it was going to fall out of the sky, but when she came by it was moving pretty good.

I too also like to have extra power, so the 222 is a cool change.

I don't know how much experience you have with quads, but I wouldn't build a fan shroud like on the 111. Although I think the fan is a good idea for cooling. I would divide the cowl area into two haves with a baffle that competely seals around the edges. Then cut out for the cylinders so all the air the fan blows into the cool side passes threw all 4 cylinders to the hot side then out of the cowling. even with the angle of the engine, I still see no problem with the baffle.

Hope this helps.
Kelly



Here is a pic of 3W-212 in my friend's Don Smith P-47

The 2nd pic is of my scratch built Super Chipmunk which will be getting a DLE222. Sweet engine, can't weight to crank mine.

zipnz1

My Feedback: (2)

For the first test flight i was conservative with my elevator throw settings and it worked for me until landing. I felt i was right on with the landing speed but when the airplane entered ground effect there just was not enough elevator throw for the flare so the plane bounced. When it bounced into the air i relaxed the elevator then hit it hard again when it reached the peak of the bounce and then just held it there through the rest of the bounces. If my speed would have been faster or had more elevator throw the landing would have been softer.

I was able to make one more flight before winter set in and for this flight i increased the evevator throw. I wish i could say the second flight went as smooth as the first but there were some complications. The worst was that i did not have one of the struts secured and the strut and wheel fell off on take off. I also made what i thought was a minor change to the carburator velocity stack by cutting a small bevel on the front side to try to cure fuel spraying onto the airplane. I did not make any needle changes and i think the second flight was at a leaner setting which cased the engine to run hotter.i attempted to do a steep climb and the engine sagged and would not resume full poweer because it was probably overheated. I then set up for landing with the gear up, the landing settled in good and the only damage was a broken prop.

here is a short vid of the second flight. http://www.youtube.com/watch?v=D8Cwt5Z2rP4

That looks like a sweet chipmunk you are building kelly, you just dont see many of those anymore.
With the 222 i am going to have to build a competely new cooling system. my original fan was 5" and too small, the airflow was insuffecient. For my new fan i have been doing some testing with my leaf blower because it had a 6.5" impeller i thought i might be able to modify. I was concerned that the hub shaft might block the airflow into the fan. I made a cylinder that fit over the fan and stuck up through the inlet hole and i was pleased that it did not reduce the flow entering the leaf blower. I ended up purchasing a replacement impeller and plan on machining a hub, cutting a hole in the center of the impeller and mount it onto the engine.
For the baffling i was thinking about doing something similar as the p47 pic. I would have the engine baffled like the p47 but have a box formed on the top side of the engine containing the air from the fan. the bottom exhaust side would be open in the cowl.

mike

zipnz1

My Feedback: (2)

I have been able to put some time on the lathe over the last few days to work on the new cooling fan and after some hours i was able to turn a 7 pound block of aluminum into a big garbage bag of aluminum shavings and a 7 ounce aluminum mount for the plastic impeller.
I am planning on mounting the plastic impeller onto the aluminum with glue and screws, but at this time i have not decided on which type of glue would be best to use.

Lately i have been thinking about the spinner and originally i was thinking about a aluminum backplate and then molding a fiberglass spinner cone, but i have been researching metal spinning on the internet and videos on you tube and thought i might try to produce a spinner cone out of aluminum.

mike

butlern

My Feedback: (15)

Nice work, Mike.

You know, if you start spinning aluminum, you're phone is never going to stop ringing with requests for custom spinners by the eastern Iowa modeling contingent!

Days are getting longer... need to make some progress on my P-51!

zipnz1

My Feedback: (2)

my 109 spinner plug or as they call it in the spinning community the mandrel finished. I have placed an order for a special alloy of aluminum disks used for spinning and will get started when they arrive.
Here is a youtube video of a aircraft spinner being produced. http://www.youtube.com/watch?v=Gwrk0SwDJhI

mike

Ram-bro

My Feedback: (101)

now I know. That was very informational

zipnz1

My Feedback: (2)

I think it's one of those lost art things that is really not done much anymore in the industrial world. It does not look really difficult but takes knowlege and feel skills. I will probably destroy a few disks mastering the technique.

mike

bigphil

My Feedback: (6)

Where were you today??? You missed the chili!

zipnz1

My Feedback: (2)

I was up late new years eve watching johns band play, had a good time.
I love chili but between sleeping in and the 40 mph winds i decided to stay inside where its warm.

bigphil

My Feedback: (6)

Lame...

glazier808

My Feedback: (1)

Mmmmm.....chili.



Casey

tfarmer96

Dang Kelly that is nice!

zipnz1

My Feedback: (2)

I cleared another hurdle today. I recieved my aluminum discs and was able to produce a usable spinner cone. This wont be my last or best attempt as i am still in the learning process.
I ordered 8" and 10" discs and in my practicing i used 4 discs. By the formula that was available online i calculated that i would need a 8" disc for my spinner but in forming i came up about 3/8" short to be useable. In trying the first 10" disc i was still learning how to flow the metal and i did not notice the edges starting to create waves. By the time i caught it the disc was unusable to finish.
Spinning the 2nd 10" disc i learned that after i had the first 25% finished to take my strokes all the way out to the edge to keep the edge of the disc straight. I stretched the disk with my strokes going out to the edge, then made inboard strokes to pull the metal close to the mandrel. After many passes i was able to form the aluminum all the way to the end.

I am going to try a couple more spinners but first i have to repair the mandrel. The wrinkles that formed in my first attempts put some dents into the wood. The last spinner i made turned out ok but if you look close you can see some of the defects. At this time i am thinking about using JB WELD to fill in some of the dents then sand smooth.

zipnz1

My Feedback: (2)

more pics.

Dave73

My Feedback: (1)

Wow Mike your the man.

ram3500-RCU

My Feedback: (221)

This is good stuff. Building at it's best.

zipnz1

My Feedback: (2)

thanks for the support guys!

bigphil

My Feedback: (6)

Wow, cool Mike! Looks great.

Ram-bro

My Feedback: (101)

YOU ARE THE MAN!!!!!! You take modeling to another level.

Luft-Gangster

Subscribed - This is great!

fokke

Hey Mike, I want to se all rivets ot the spiner Cool , very impressive !

JÖRÖ

Respect!!! Im dreaming to build my own spun spinners, very informative. Thanks, MAN!
-Jukka-

Brad330l

My Feedback: (1)

Right there with the other guy's comments,,, Bloody well done mate.

Brad

crashproof

Outstanding work Zip. wish I had those skills. Kevin.