Here's the Medallion section from the NFFS Nostalgia FF rules. For the entire rule books, see:
http://www.freeflight.org/competition/nostalgia/nostalgia_power_info.htmTagged on to the end is the allowed Holland motors.
Class 1/2A:
3. Medallion .049 (SE), as sold in the early 1990s. It contains four small exhaust slits of the same
size and two intake bypasses with one boost port per bypass. The engine must be used in stock
condition, except for the following modifications:
• Enlarging the inside diameter of the venturi.
• Reducing the outside diameter of the stock needle-valve spraybar to increase airflow;
• Replacing the needle-valve assembly as noted below.
Class A: 051 Killer Bee (SE) and Medallion (SE) of the above vintages and with the same restrictions as
for 1/2A; Sportsman 15; Olympic 15 (SE).
Cox Parts Restrictions: Use of Tee Dee parts in Killer Bee or Medallion (or in any otherwise legal
Nostalgia engine) is not allowed, except for glow-plug use as described above. You can replace the needlevalve
assembly used for the Medallion, but the Tee Dee needle-valve assembly or its parts is not an
acceptable substitution.
Note to Contest Directors: The Tee Dee cylinder has boost ports in the bypasses, with two open-type
exhaust slots; the Medallion has four small exhaust slits.
Holland. 049 and 051 Hornet; 049 Wasp.
- Norm
