Wheel Pant & wheel assembly

[Bob Pastorello]

Same as Earl's, except I use a 8-32 socket head bolt from the outside of the wheel pant, through the wheel, then a kep nut(reversed to tighten against the plywood), 1/8" AC ply plate, inside part of pant, gear leg, then flat washer and nylon locknut.  I then drill a 1/16" hole through the gear leg, pant, and ply plate at about 10 o'clock, referenced to the bolt, for a Servo mounting screw to go through the leg and into the ply plate inside the wheel pant.  Enlarge the hole in the gear leg to 3/32".  CA the plywood hole before installing screw.  Stops rotation of the pant.

I like this because I can alter tension against the hubs easily, and it's servicable with off-the-shelf stuff.

Bob Pastorello
rcaerobob at cox.net
www.rcaerobats.net


  ----- Original Message ----- 
  From: Earl Vincent 
  To: discussion at nsrca.org 
  Sent: Friday, April 30, 2004 5:12 AM
  Subject: Re: Wheel Pant & wheel assembly


  Dubro 3 inch Treaded Lightweight wheels cat.no. 300TL .Steel axles, I will have to get the name of the manufacture, they are 5/32 all the way to the end of the threaded part so you are not drilling a giant hole in the CF gear. I have the tire from about the bottom of the hub exposed out of the wheel pants.
  Hundreds of flights from thick grass and tar with no
  failures of the gear, tires or damage to the wheel pants, I originally had DB tires for weight but on side load landings like slipping in wind the foam tires would twist and catch the edge of the wheel pants and crack or tear them. also put 1/8 light ply plates on both sides and run the axle completely through to support the outer part of the wheel pants you see a 5/32 hole on the outside of the wheel pant if you drill all the way through not a big deal.
  I will get you the name and part # of these axles.I think they are made by Higgley Co.
  Earl
    ----- Original Message ----- 
    From: Keith Black 
    To: discussion at nsrca.org 
    Sent: Friday, April 30, 2004 1:52 AM
    Subject: Wheel Pant & wheel assembly


    I'm assembling my first Bolly gear with Bolly wheel pants and I need some advice.

    I'm not sure exactly where on the gear and wheel pant to drill the axle hole so the wheel will extend an adequate amount below the wheel pant to avoid scraping  but be recessed enough to look appropriate.

    Breaking this down into different questions:

    1. What size wheel should I be using with the Bolly Wide gear and wheel pants? I was told the Dave Brown 2 1/2" Lite Flite Wheels would work, but before I start drilling I'd like some verification because they look rather small in the Bolly pants.

    2. How much of the wheel needs to extend below the wheel pant to prevent scuffing of the pant. Things that occur to me to consider are less than perfect landings, the natural sag of the foam under the plane's weight and having enough wear room so I'm not changing wheels too often.  

    3. The answer to #2 will dictate where the hole needs to be drilled into the pant, however there's still the question of where the gear should be attached to the pant. On the Bolly pants there's a molded indention that accepts the gear, however it is much larger (from top to bottom) than is necessary for the gear to fit. This allows mounting such that the bottom of the gear can range between being flush with the bottom of the pant to 3/8" above the bottom of the pant. Of course, the higher the gear is mounted the closer the axle hole will be to the bottom edge of the gear.  Do most people mount the bottom of the gear flush with the bottom of the pant, or up 1/8" or so?

    I hope someone on the list can decipher what I'm trying to say in #3, it's pretty hard to explain.

    Thanks,
    Keith

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