 
A-justo-jig advertisement on page 160 of the November 1978
RC Modeler
magazine.
 Sometime in the 1970s, a radically new model
airplane building tool appeared in R/C Modeler, American Aircraft Modeler,
and other model aviation magazines - the "A-justo-jig." It was pitched as the answer
to all the many misaligned wings and fuselages that were preventing everyone from
being a world class radio control and/or control line pattern flyer and/or scale
master. Undoubtedly, use of a jig to align and hold in place ribs, leading and trailing
edges, fuselage side and formers, etc., did/does result in a more perfect model
airframes; however, in the many hundreds of model aircraft building articles I have
seen in magazines, to my recollection not one featured an A-justo-jig. Many showed
custom jigs designed by builders, but none in a commercial jig. Sometime in the
1990's Great Planes introduced a
Precision Wing Jig.
In 1978, the cost of the A-justo-jig was $49.95 and the supplementary fuselage
jig was $10.00. Per the BLS Inflation Calculator, that is the equivalent of $219.60
for the wing jig and
$43.96 for the fuselage jig.
Posted May 29, 2021
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