Center Section : Main Landing Gear

Here is my version of the T2 gear; I heard horror stories about the slotted hole/bolt method of making the telescoping gear by the plans (apparently the slot widens with time and it is difficult if not impossible to drill the hole with the correct alignment). So I adapted the stronger Hummelbird style gear. The only difference with my gear to the Hummel is the bottom link of the scissors is solid aluminum. Very difficult to form those channels for the links.

Another view of the gear. I used go-cart drum shoe brakes. Someone told me they look just like Azuza brakes, but they are very inexpensive. I adopted them to Hegar wheels.

A view of the main gear, upside down sticking out of the wing. You can see the .040" doubler around this area that strengthens the spar. I did this also on the top of the wing as Cal suggests, but not on the outside wing panels, because he felt that it wasn't necessary.

Vista inferior del sitio donde va fijado el tren principal.Note los agujeros de la placa de refuezo.NO colocar los remaches hasta fijar el tren

Forma en la que he fijado el tren principal al larguero.Un tubo de diámetro interior igual al tornillo que fija el tren de aterrizaje, cruza el tubo principal y es soldado en ambos lados.La idea es copiada del Hummel Bird.Note la ranura (slot) en el refuerzo interior y en el forro (skin), para permitir colocar el tren de aterrizaje.El cable que se ve pertenece a los frenos

Aileron bellcrank centre section at full extension.

Undercarriage with scissorlink.

Scissorlink is made from 6061-T6 alloy. The welded tabs on the leg are all spaced the same so that the two scissorlinks are identical and interchangeable. Width is the width of the steel tube on both links. The scissorlinks were machined to a thinner crossection in the middle and lightening holes added (more for looks than weight saving).

Close view of link and bronze bushing in the bolt hole.

The Honda (from a Honda 50 motorcycle) expanding drum shoes actually expand into the wheel itself - there is no brake drum. This is only to really use the brakes at very slow speed i.e. taxying or turning, not trying to stop from high speed.The benefit of this is weight saving and cost.

The brake shoes are mounted on an alloy backplate with custom machined spigots to expand the shoes. All machining was done by Alan Mitchell, a friend and (thankfully) neighbour.

I used a spring gear on my Teenie. This is the axle which was machined and slipped into a sleeve with two bolts to secure it to the gear leg. It was very strong and withstood some very hard initial landings.

This photo shows the completed gear leg and axle before installation. As you can see, there really isn't much to it.

Here you can see the two aluminum blocks that the gear legs mount to. Notice they are agled to give the proper set back of the wheels.

Landing gear support bracket as per drawings.

Designed wedges for landing gear support. These hold landing gear so that the bolt is square and cocks the landing gear down fifteen degrees.

Bicycle brake cable and slpint pin

Kit band brake, splint pins and bicycle cable

band brake, bicycle cable and pins

band brake with welded bridge and cable housing holder

landing gear, notice the long bolt (AN3-27?). Holds the rubber hoses inside tube and the band brake in place through the splint pins

Landing gear on plane with bicycle cable and housing attached.

Front view of landing gear and band brake

Close up of landing gear AN-3 bolt and band brake

Band brake from the top and rear looking down.

Band Brake, bicycle cable and housing.

Brake Installation and Alum Spacer info from Bobby THomas

Another idea from Internet

This is the main gear from J.L.Montañez

He has not diagram about how he maded, but the pictures are very clear

One gear is completely broken out, the other is really cracked. 200 hours airframe/ 400 landings.

T2 R. Sajardo. Main landing gear with hidraulic brake, and scissor from a BD-5

T2-Rafael Sajardo His dual hidraulic break for wheel,and conections.I´ll put the same hidraulic disc break in mine

My scissors in progress.I´m using Andy Jankowski´s idea. They are 7075 T6.¡¡Very hard to work!!

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