- Design Release Requirements:
- Date of Release:
The latest accepted magazine or book date for the published
design *, or the release of a kit will be January 1, 1980.
If the kit or published design had several release dates that
included modifications to the design, only those prior to
January 1, 1980 will be accepted.
Models that have been kitted, but where there is no date on
the plan or on the instructions, an advertisement in a dated
magazine or book can be used for dating of the design.
If the plan used for construction and
documentation was published in a book or magazine, all of the
parts of the plane must be scaleable and buildable from the
plan. the aircraft construction must be detailed, and not just a
3-view. this is especially important for the shape of the
airfoil if it is not from a published set of coordinates.
- Airframe Requirements:
- Items that Must Duplicate the Original:
- The plane must replicate the original styling and
appearance and comply with the vision of the Nostalgia event
(Vision is stated under Special Items).
- Airfoil, flying surfaces plan forms, moments and surface
- Fuselage form or styling in outlines both in side and plan
- Basic construction... i.e. open bay wing structure, wood
vs. FRP etc.
- Items that Can Deviate from the Original:
- Control surfaces... if desired, on a plane with no glide
control capability, spoilers may be added to the upper wing
surface as long as the plans do not call for any other glide
control device. If the plans have a glide control system, it
must be the one used and shall not be deviated from.
If spoilers are added, they must be designed to minimize
the affect on the styling of the original aircraft. (An
example would be on an open structure wing; the spoiler system
must be of minimal dimensions including the area around the
spoiler bay used to attach the covering.)
- Any interior, non-visible, structural modifications to
enable the plane to handle modern launch equipment and
techniques... some examples:
- Substitute spruce for
- CF reinforcements
- Larger joiner rods
Stronger tow hook systems
- Wing incidence and decalage
- Wing mounting (bolt on vs. rubber bands)
- Removable or bolt on stabs rather than permanent stabs as
long as the assembled position replicates the original and the
visible architecture is unchanged.
- Dihedral (either tips or center or both) can be modified a
maximum of 25% of the original for personal handling
- Special Items:
- Radios can be of any type legal to operate and electronic
mixing is allowable on any set of surfaces.
- The use of landing arrestor devices is prohibited. this
does not eliminate the use of a smooth surface skid to protect
the bottom landing-surface of the aircraft from scratches and
- The CD will have the final vote on legality on any item
not covered in this document.
Bear in mind that the vision of the event is to duplicate the
spirit of the old days in styling and form of aircraft and flying
capability of said aircraft and only those changes consistent with
launch and landing safety will be allowed.
The final proof of legality of the design for this event lies
with the contestant. (Having an original set of plans would be the
optimum way to settle any questions.)