Aircruiser 60 (oz16083)

 

Aircruiser 60 (oz16083) by Joe Bridi 1980 - plan thumbnail

About this Plan

Aircruiser 60. Radio control sport trainer model. Wingspan 61-3/4 in, wing area 720 sq in, for .60 engine.

Direct submission to Outerzone.

Quote: "Attached are the plans for the Bridi Aircuiser 60. Also, is a picture of the one I built in 2017 [main pic]. This is a Bridi design. Construction is fast and straight forward. As with all Bridi designs, it is an honest great flying airplane."

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Aircruiser 60 (oz16083) by Joe Bridi 1980 - model pic

Datafile:
  • (oz16083)
    Aircruiser 60
    by Joe Bridi
    from Bridi Aircraft Design
    1980 
    61in span
    IC R/C
    clean :)
    formers unchecked
  • Submitted: 03/06/2025
    Filesize: 517KB
    Format: • PDFbitmap
    Credit*: RayPhillips
    Downloads: 279

Aircruiser 60 (oz16083) by Joe Bridi 1980 - pic 003.jpg
003.jpg
Aircruiser 60 (oz16083) by Joe Bridi 1980 - pic 004.jpg
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User comments

The last kits were made by Blue Jay. There was a note about making the last 3 1/2 inches of the strip aileron fixed. This is to prevent flutter at high speeds.
Ray Phillips - 13/06/2025
I've experienced aileron flutter more than once. It's easy to cure, just add balance weights. My last problem occurred on my Miss Martha when I installed an OS 46, just a little too much power. I made my weights from coat hangar wire, easy to bend. Put them near the tip, using 1/2 oz lead fishing weights, about an inch forward of the hinge line. Ailerons should balance at the hinge line. If yours still flutters, you don't have enough weight. Works every time. In fact, it's the ONLY thing that really works. They should be mounted on the top of the wing to keep weights from dragging in the grass. Ask me how I know.
Doug Smith - 14/06/2025
Kudos to the builder of the plane in the photo. Nice color choices and scheme.
The airfoil is very interesting to me, with its sharp leading edge and flat bottom after the spar. I have seen airfoils of similar form used on planes designed by L.F. Randolph. My XFLR5 analysis of his Keytwo airfoil showed these features result in the maximum L/D occurring at 8 degrees AoA while most peak at around 4. That is not a bad thing, just different. Such an airfoil becomes interesting when used on wings of relatively lower AR. That is, as the AoA increases, the airfoil becomes more efficient, lessening the impact of the induced drag rise due to the lower AR. Did you follow that? No RC plane is a "cruiser." It must execute a turn around at the end of the field before it flies out of sight. Which means that the airfoil is frequently flown at an AoA above a "cruise" value.
With all that said, the airfoil thickness seems excessive here although I'm sure the plane flies fine.
Patrick - 14/06/2025
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* Credit field

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Scaling

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