National Association of Rocketry

Egglofter Plans

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Eggloft Duration Rules
Dual Eggloft Duration Rules

Eggloft Altitude Rules
Dual Eggloft Altitude Rules

FOR B - C MOTORS
Pprangroc	By the early 1970's, plastic Easter Eggs were commonly used for creating egg capsules that were lighter and more streamlined than what was available in kit form. Combining two "large halves" of a plastic Easter Egg yielded a capsule large enough to hold a hen's egg that meets Pink Book standards, but not much room left for padding. The Pprangroc took overall first places in C ELA at NARAM-13 (256 m) and NARAM-15 (288 m).
2 Minute Egg	George Gassaway's 2 Minute Egg is a versatile, very competitive egglofting design. The cone-shaped airframe was developed in 1980 in response to the then new eggloft duration event. The large interior can easily accommodate a very large plastic parachute. This design has also proven to be competitive in altitude events. The 2 Minute Egg has appeared in many guises as modelers seek to further optimize this design concept. 2 Minute Egg type egglofters have placed at numerous meets all the way to the National-level. It can be scaled up for dual eggloft, and modified in many ways. Given the formula that is used to calculate shroud dimensions, the modeler can create a shroud of any size.

FOR B - C MOTORS

By the early 1970's, plastic Easter Eggs were commonly used for creating egg capsules that were lighter and more streamlined than what was available in kit form. Combining two "large halves" of a plastic Easter Egg yielded a capsule large enough to hold a hen's egg that meets Pink Book standards, but not much room left for padding. The Pprangroc took overall first places in C ELA at NARAM-13 (256 m) and NARAM-15 (288 m).

2 Minute Egg

George Gassaway's 2 Minute Egg is a versatile, very competitive egglofting design. The cone-shaped airframe was developed in 1980 in response to the then new eggloft duration event. The large interior can easily accommodate a very large plastic parachute. This design has also proven to be competitive in altitude events. The 2 Minute Egg has appeared in many guises as modelers seek to further optimize this design concept. 2 Minute Egg type egglofters have placed at numerous meets all the way to the National-level. It can be scaled up for dual eggloft, and modified in many ways. Given the formula that is used to calculate shroud dimensions, the modeler can create a shroud of any size.

FOR D - E MOTORS
No Ham	What dual egglofters used to look like. Dual eggloft had a low success rate in the early days. This ship was a successful design circa 1976, and uses Estes parts that are unavailable today. Modified with modern components, it could be flown at contests flying from small fields. The highest altitude may win, but they sure can drift a long ways. You still have to get your model back to place.
Former E DEL Altitude Record Holder	Simple, sleek, well-finished, and probably mass-optimized, Glenn Feveryear's 590 meter flight broke a long-standing record with this design. It has since been eclipsed by Trip Barber's 654 meter flight, but still represents an example of a modern, competitive dual egglofter.

FOR F - G MOTORS
Roc Egglofter	NAR events used to have colorful names for indicating engine class. Today's F ELA event is equivalent to the Roc Eggloft event from earlier times. This model used clustered motors to achieve F engine total impulse, and once set an 895 meter altitude record.

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