Blohm and Voss 141-B (oz15395)

 

Blohm and Voss 141-B (oz15395) by Terry Aldrich 1970 - plan thumbnail

About this Plan

Blohm and Voss 141-B. Control line profile scale model for .049 engine. Scale is 1/24.

Direct submission to Outerzone.

Cleanup by Pilgrim.

Update 6/7/2024: Added article, thanks to Pit.

Quote: "Fine-flying asymmetrical German fighter makes great 049-powered trainer and sport model. Blohm Voss 141-B, by Terry Aldrich.

Out of WW II came a great variety of experimental aircraft. The BV 141B represents what was obviously one of Germany's farther out excursions into new design. The brainchild of Dr Vogt, the asymmetrical aircraft went beyond the experimental stages and actually saw combat service on the Russian front.

Built in 1938, this fighter-bomber carried light armament by today's standards. Two fixed machine guns were supplemented by two movable, crew-manned machine guns, bomb load was four 110-lb bombs. The crew pod carried four men including the pilot, while the main fuselage contained the 1600-hp BMW 801 engine. Statistics, converted from metric dimensions, were: wing-span, 57.3 ft; length, 45.8 ft; speed, 241 mph at an altitude of 11,500 ft.

The semi-scale 049-powered model is of simple balsa construction. The scale chosen resulted in a fairly large, stable, easy-to-fly model. One of the new McCoy 049's with the tank-mount combination was used, but any engine of similar displacement and mounting is suitable. Epoxy resin (you can use your favorite cement or glue) was used to join all assemblies for durability. There are few joints. Make them all close-fitting, using the epoxy sparingly for maximum strength and lightness.

Wing: Trace the wing outline from the top view onto the soft-balsa wing material and cut out the wing. Cut the 1/4 x 1/4 in groove for the landing-gear mount into the bottom surface of the wing panel. This can be done on a table saw, or by cutting along the two outside lines with a modeler's knife and chiseling out the remaining center wood.

Completely carve and shape the airfoil before cutting off the wings to add the dihedral. Using a raior plane or long knife, roughly shape the upper wing to the airfoil section shown on the side view. Starting with coarse garnet paper and using progressively finer paper, sand the wing airfoil to its final shape. Round off the wing tips. When the airfoil is complete, cut off the outer wing panels at the dihedral parting lines shown on the top view.

To reassemble the wing, place the center panel on a flat surface and add weights to hold it in place. Set the outer wing panels in place and block them up to 1" dihedral at the tips. Carve, sand and fit the joint surfaces to the proper angle to eliminate all cracks at the dihedral joint. Epoxy the outer panels into place.

Make only the two upper bends in each landing-gear wire. Drill a 3/32 hole through each end of the hardwood landing-gear mount at the locations shown on the plan. For each gear wire, slide the longer leg into place on the mount..."

Supplementary file notes

Article.

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Blohm and Voss 141-B (oz15395) by Terry Aldrich 1970 - model pic

Datafile:
  • (oz15395)
    Blohm and Voss 141-B
    by Terry Aldrich
    from American Aircraft Modeler
    August 1970 
    28in span
    Scale IC C/L Military
    clean :)
    all formers complete :)
    got article :)
  • Submitted: 21/06/2024
    Filesize: 254KB
    Format: • PDFbitmap
    Credit*: dfritzke, Pilgrim
    Downloads: 163

ScaleType:
  • Blohm_%26_Voss_BV_141 | help
    see Wikipedia | search Outerzone
    ------------
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    ScaleType: This (oz15395) is a scale plan. Where possible we link scale plans to Wikipedia, using a text string called ScaleType.

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Notes

* Credit field

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Scaling

This model plan (like all plans on Outerzone) is supposedly scaled correctly and supposedly will print out nicely at the right size. But that doesn't always happen. If you are about to start building a model plane using this free plan, you are strongly advised to check the scaling very, very carefully before cutting any balsa wood.

 

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