Mark Niemiec has found a way to construct a Period 29 Pre-Pulsar Shuttle Oscillator.
His original construction created the [13.9] pair using a
reactions that started with Blinkers (also shown here), but I have subsititued Dean
Hickerson's recently discovered 5 Glider construction. Fortunately, the two objects are
far enough apart and located such that none of the incoming Gliders for the second
interferes with the first. This reduces the number of needed gliders from 34 to 28.
Next is a way he found to build a 21 Bit Period 5 oscillator [21P5.1]
He also found a method of converting a Period 3 Mold [12P3.1] into a Period 5
Oscillator rotor stabilized by a variety of Stable Objects. Shown here are [17P5.1]
using an Aircraft Carrier [6.4], [18P5.2] using a
Fishhook Eater [7.3], and [19P5.1] using a Shillelagh
[8.2].
Finally, here are a few more constructions found by Dean Hickerson's search from last summer.