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  1. TonyHallo

    Scale Wendell Hostetler 30% Piper Cherokee Glass Fuselage Build.

    There is a large heat sink on the bottom of the crankcase, this needed included in the cooling air flow so just cooling the cylinders is not an option. I do not believe cooling air over the spark plugs is a requirement. Three ZDZ engines and the original ignition on the first Roto engine had...
  2. TonyHallo

    Scale Wendell Hostetler 30% Piper Cherokee Glass Fuselage Build.

    I guess what I try is to have a high zone created by the prop blast and velocity pressure and a low pressure zone created normally by a lip in front the exit opening. Then force the air to travel across the cooling fins while minimizing leakage. The first photo is the Roto 85 FS installed in...
  3. TonyHallo

    Scale Nelitz 1/3 scale Cub build

    We got a little snow accumulation yesterday as well.
  4. TonyHallo

    Scale Nelitz 1/3 scale Cub build

    Yea, you!
  5. TonyHallo

    Scale Wendell Hostetler 30% Piper Cherokee Glass Fuselage Build.

    Pecking away at the door latch. The latch is 1/16" brass sheet with a 3/32" brass tube for the hinge. The latch slides in a 5/32" x 5/16" rectangular tube. Looking for a spring
  6. TonyHallo

    Scale Wendell Hostetler 30% Piper Cherokee Glass Fuselage Build.

    My Champ and Super Cub are done in a similar fashion. Have the telemetry set at 300f, in countless flights, had 1 alarm, this was this past August at the AMA scale Nats while performing a Chandelle maneuver where full power was applied during a 180 degree climbing turn. There was a fellow...
  7. TonyHallo

    Scale Nelitz 1/3 scale Cub build

    You were to busy drinking those IPA's!
  8. TonyHallo

    Scale Wendell Hostetler 30% Piper Cherokee Glass Fuselage Build.

    Moved on to the door latch. Laid out the location of latch, then decided a backing was necessary, made up a quick balsa plug that will be laid up and glued in from the back side. Brainstorming various latch mechanisms, thinking it might be a square brass tube and bar with a strike plate in the...
  9. TonyHallo

    Scale Wendell Hostetler 30% Piper Cherokee Glass Fuselage Build.

    The duct is two layers of 4 ounce cloth, the baffle plate is a little heavier, don't remember exactly thinking 12 ounces of cloth. The original file for the baffle plate had fingers that extended into the heat sink on the bottom of the crankcase, see the pdf attached. I eliminated the fingers...
  10. TonyHallo

    Scale Sig 1/3 Scale Spacewalker

    Less than a year Randy! Will you wait for spring?
  11. TonyHallo

    Scale Wendell Hostetler 30% Piper Cherokee Glass Fuselage Build.

    Pulled the dust out of the form, the form was covered with clear packing tape. The baffle will get tacked in place then glassed on the inside, then final
  12. TonyHallo

    Scale Wendell Hostetler 30% Piper Cherokee Glass Fuselage Build.

    Before doing the powering work, decided to fab up the cooling duct. I fellow over on the RC Scalebuilder site provided a copy of the file he used to cut a baffle for his FG61TS mounted on BUSA Ercoupe. Had a local fellow cut it out on a laser cutter, this will be attached to the duct section...
  13. TonyHallo

    Scale Wendell Hostetler 30% Piper Cherokee Glass Fuselage Build.

    Mounted the nose wheel servo and finished the linkage. Milled a 5/32" hex on the end of the 10-32 stud to allow use of a 5/32" hex driver. Next moving on to powering the servos and ignition from the RB30+ redundancy bus mounted under the back seats.
  14. TonyHallo

    Scale Wendell Hostetler 30% Piper Cherokee Glass Fuselage Build.

    Real old stock! I think they burnt down before y2k.
  15. TonyHallo

    Scale Wendell Hostetler 30% Piper Cherokee Glass Fuselage Build.

    Shorten the upper half of the nose wheel strut and took 3/8" off the nose wheel bearing to make room for the linkage. I don't want to cut the cowl so the nose wheel must be removable to remove the cowl. No big deal, how often do you take the cowl off anyway once things are worked out. Pop the...
  16. TonyHallo

    Scale Wendell Hostetler 30% Piper Cherokee Glass Fuselage Build.

    Thanks Mile, I hope it sounds as good as the exhaust on the Super Cub, it is very similar.
  17. TonyHallo

    Scale Wendell Hostetler 30% Piper Cherokee Glass Fuselage Build.

    Exhaust is fabbed up. Nose wheel is next.
  18. TonyHallo

    Scale Wendell Hostetler 30% Piper Cherokee Glass Fuselage Build.

    Started fabbing the exhaust. The Saito FG61 exhaust port is a threaded 15mm x 1mm connection. Elbows and flexible tube are provided with the engine. I plan to make the exhaust out of K&S brass tube. I was surprised to find a 15mm x 1mm tap and die set on Amazon. My plan is to make a...
  19. TonyHallo

    Scale Wendell Hostetler 30% Piper Cherokee Glass Fuselage Build.

    Spent some time on the landing gear. Mounted the main pants to the gear and set the thrust washer for the nose wheel to the correct length.
  20. TonyHallo

    Scale Nelitz 1/3 scale Cub build

    Good result for an OU fan as well! Was routing for OU the whole game.
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