View Full Version : Peg Leg gyro
01-14-2005, 03:33 PM
This is what I started today. Cut up a kb frame. jig up some legs. This will be for the MZ 202 motor that needs a home. I ordered a KB3 mast to save time, when it gets here it will be a bolt on deal. The gear and drop keel should be done by then. I hope to fit a 72" prop on it.
brent all things must start some where lol
01-14-2005, 05:27 PM
nice, your like me and do alot in one sitting. I had fun with my KB2. 72 prop is big like the one on my biplane. I know that I will have to put a step to get into my modified 3drv you have any idea how far from the ground your front keel will be? difference between front and rear keel?
01-15-2005, 04:44 AM
I will see if I can get that data today. But just going off of what I know a 72" mast can use a 60" prop with my tall tail. So with a 72" mast and a what looks like a 16" drop keel a 72" prop is not hard to see fitting on it. I might have room for a 75" powerfin. I want to make sure I get that 340+ thrust from it so I can run with the Rotax 582 gyros.
I still want to pull the MZ apart and put it together myself and hope stop the case weeping. it is just small but still gets all over the tail. A good time to see if anything is going bad too, I ordered new gaskets for it already.
01-15-2005, 07:55 AM
brent do you use a actual gasket with sealer or just sealer ?
01-15-2005, 10:07 AM
On the jugs, heads, and reed valves just the gasket. But this is weeping at the case and that will be what ever Rotax uses for that. I am thinking it wasn't torqued down right. we will see. I got the gear box , carbs and wires off now. I will pull the clutch and fan next then wait for the gasktes.
01-31-2005, 04:15 PM
I got the new KB3 mast and found out the seat mount is higher by 2" so the old cold rolled mast supports don't fit. I cut the push tube down to let the rotorhead hit the stop before the stick hits the seat tank. Nose gear needs to be lowered 2" too but it looks like it will be a cool gyro to fly. I will post more photos soon. I hope to have it flying at Bensen Days.
02-01-2005, 03:46 PM
Sorry it got dark on me but here is the drop still need the drill holes and you can see the 2x2 under the front wheel that is how much it has to come down or get a taller wheel to level up the keel.
02-01-2005, 08:07 PM
Looking good Brent. Simple just like it should be.....you have any idea what your empty weight might be?
02-01-2005, 09:02 PM
Brent, I would love to come see it. where is your strip? I will fly over.
02-02-2005, 03:15 AM
The motor is less than a 503. So I'm not sure but I will put it on the scales when it is ready. It will be lite for sure.
02-05-2005, 02:13 PM
I wanted to get better photos but now I'm getting white out. I did get two that are OK. See.
02-05-2005, 04:20 PM
Cool! Looks like a winner. Will you be at Bensen Days with it?
02-05-2005, 04:42 PM
looks good. How did you do that main axle? Is that chromoly in the black attached to aluminum tubes for the long down angled axle attached to chromoly stub axles for the wheel bearings and wheels to slide over? Is it attached at the stub axles and then braced with a spacer at the top triangular point?
Ahh, hell, how about you just post some closer up pictures of the main gear if you have a chance? May be simpler than answering all those questions, a picture being worth a thousand word and all.
Thanks for posting and sharing.
02-05-2005, 04:50 PM
I should be there with it. I still need to move the nosegear down 2" and start cutting a motor mount. The last thing of the big stuff will be the tall tail. It looks like 72" prop for sure maybe I will just use the same powerfin that was on the two place and get a new one for it, that sounds right new motor new prop for the two place. I will try and take photos of the tail as it is coming together for the ones that want to know how.
02-05-2005, 05:12 PM
Great job Brent! I envy you, your gonna have something to fly so quick and it looks nice too!
02-05-2005, 05:20 PM
The axles and AL legs are off a Challenger UL plane. So I made a COMO V that slides inside them just over half way down the length. Tabs are going from the V and bolted to the top of the old AL axle ( the short 2x2 ) and to the mast check plates. A bolt through the V and the old AL axle. I will still have drag legs from under the upper keel to med main leg. This is the small stuff that make a 90% gyro realy a 50% gyro.
02-05-2005, 05:44 PM
darrell If you go back to post 1. you can see the tabs on top of the short axle and look down the right leg in the right pic. you can see the hole that the drag lag will join at that point. The COMO V is past that hole inside the leg.
02-05-2005, 06:03 PM
This is the white out pic to much sun. I put Garys' pod on it to see how it will look when I will pull the mold off it.
02-06-2005, 01:04 PM
better pics of the gyro and gear
02-06-2005, 01:34 PM
Nice gear design, very simple and should have good shock absorbtion. What are the legs made out of?
02-06-2005, 03:08 PM
The AL. is 1 and 1/2 O.D. 1/8 wall. COMO .065 most of the way down the AL. No flex. Just like a peg leg.
02-06-2005, 08:13 PM
Thanks for the pics, Brent. Looks nice and best of all, light.
02-08-2005, 05:53 PM
today I got the nose gear back on and the boom is bolted on for good now. all this was just to level up the keel.
The motor mount is next, and I'm still kicking around what type to use. If I use the holes that are in the mast for the KB3 it has to be just right so I can get the biggest prop I can. I guess I should have ordered the mast without motor mount holes in it.
A clamp on type mount will make the mout adjustable up and down so that is what I will go with. More PICs will follow as I get cutting tubes.
brent. looks good! hows the 670 running ?
02-09-2005, 02:27 AM
Not running still waiting for the gearbox and pipe.
02-27-2005, 11:59 AM
Mount and prop fitting
02-27-2005, 12:06 PM
this was just to see if the 73" prop fits and it will so now to make the lower supports for the mount and a tail. This will be forsale after I fly it, anyone?
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