RE: E-Flite Beaver
DHC-2 Beaver 25e ARF EFL4525
Evidently there are some changes/bugs/QC issues that have crept into this ARF since the "Easy Build" was posted.
1. Esc mounting "box" needs to be shortened by the thickness of the ESC, (About 1/2") in order to clear the false radial engine.
2. Using the specified Eflite 32 motor, the motor mount is short by about 3mm.
I used 3mm "Pop Rivet" washers to get the proper prop to cowl clearance.
3. The diameter of the false engine is slightly too large to permit proper fit in the cowl.
The false engine plastic is very thin towards the rear and junction of the cylinders, making relief for air flow difficult.
Orientation of the cylinders is critical, in order to permit access to the cowl mounting bolts with a ball driver.
4. Two of four cowl mounting tabs were glued "crooked", causing the glue to crack when the cowl was mounted to the fuselage.
5. Window cutouts were undersize for the supplied windows and slightly ragged, with grey paint spattered on the edge.
Extensive and time consuming custom filing, sanding, etc. was required to get the windows to fit.
7. Tail assembly
Control horns for the Rudder and Tail Wheel were composite plastic/metal hub, and identical. (Instructions call for different metal horns)
The Rudder vertical shaft was too long to permit control horn removal. This creates a problem in setting the Rudder linkage correctly,
due to lack of clearance between shaft and tailwheel mounting bracket.) The plastic clevises also contribute to the problem.
Correct the length before attaching the Vertical Stabilizer and Rudder assembly, or you will be sorry!
The tailwheel mounting bracket and the linkage have interference problems that require careful grinding on the mounting bracket and the
plywood area behind the bracket. Again the plastic clevis is part of the problem.
The tailwheel actuating rod required slight bends at the rear and front to reduce binding and help provide clearance.
Part of this is due to where the outer tube is located at each end.
I'd suggest that collars and somewhat weak springs be used at the servo, instead of the setscrew for the tailwheel linkage rod.
The tail cone mounting screws were long enough to also cause clearance problems with the Rudder linkage. I had to replace with shorter screws.
Wing to horizontal stabilizer alignment - - - the book ignores the fact that the wing has dihedral, making things quite difficult to properly align.
About all you can do is mark the wing trailing edge at the length of the horizontal stabilizer, stretch a black string between the marked points, and use it for reference.