Fly Baby (oz1385)

 

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User comments

The side view of ribs shows undercamber, but fuselage side view of ribs shows a flat bottom rib.
anon - 07/11/2015
flat bottomed only the central ribs to make a sure plan joint with cabin saddle and due to the bottom sheeting, undercambered all the others ribs. Perfectly regular and common in this kind of plane.
pit - 07/11/2015
Hello, I have a plan that was given to me and I found some errors. The central ply brace for the wing is not symmetrical. On the end rib, the gap between the cutouts provided for the passage of the spars is not good. It would have been better to have the drawing of the last 2 ribs which suddenly are obtained by cutting and sanding in place.
kawa - 08/02/2023
I believe the authors have passed away, so someone else will have to redesign this small but important detail. Even yourself, perhaps?
Miguel - 08/02/2023
The last four ribs towards the tip are different from the main rib template, the tip rib looks to be oversize so you can block sand it to conform with the airfoil of the other ribs, the spar spacing is off, but you can match it with the other ribs. The dihedral brace is easy, match the end points of the center section and make even extensions out to the first rib, personally I would go out at least one more, you can use the tilt jig as a quick angle guide to make sure both sides are even. There is no brace shown for the rear spar, but it would be easy to make 2 dihedral braces and shorten one in height for the rear, also widen the spar slots in the ribs the braces will pass through. Both names are well known, Pete Bowers was both a designer of models and full scale at Boeing, I have the full scale Fly Baby plans and even those have a few things that have to be corrected and those have had numerous planes built and flown from them. Doc Mathews was well known with many designs kitted, he wrote various columns in the magazines along with submitting designs for construction. These plans are pretty good, I've had to build from much worse, it made me think it would have been better to draw my own.
Douglas Babb - 08/02/2023
you build don't complain if you need to adjust, thats what the rest of us do
Mark - 09/02/2023
Problems generated by the magazine printers/typesetters are amplified when reproducing from the mags. DAMHIFK. The sometimes patchwork renditions in the mags don't usually escape, but don't shoot the messengers.
Circlip - 09/02/2023
Messenger shooting is allowed, but with marshmallow bullets only! We owe them too much for all their often unrecognised work in making these plans presentable for our enjoyment- Thank you all :)
Miguel - 09/02/2023
I have redrawn (for laser cutting) many old time plans and have yet to find one without basic errors. You have to remember that most plans were drawn by hand and without a room full of draftsmen to check your work things get through. Not so when you test build a laser cut set of parts. Lack of symmetry is the first thing I check for when I bring plans into AutoCad and seldom do the right and left sides match. Distortions do to copying, scaling errors because scanners seldom have the same X/Y scales come into play. And then unless a plotter is properly calibrated printed plans can sometimes introduce errors. If you need it right out of the box best go buy a die cast model and don't put it to a ruler. But I tried that and it didn't glide well.
John Eaton - 12/01/2024
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