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Re: Ultra-Portable Hang Glider(s) UPHG

Postby JoeF » Tue May 06, 2025 7:24 pm

Option for some UPHG: Four-bay wing. Pack length: one meter. Two central bays without sweep, but with small dihedral. The two wingtip bays have sweep and some dihedral. Fore and aft spars are segmented to have two main segments LE on left and similar on right. Aft spars are similarly segmented. There are four chord struts, two on left wing and two on right wing. Keel. Kingpost. Two queenpost doing double duty as control-frame downtubes. Each spar segment and each strut are made up of two sub-segments; thus, the 2 segments of the left LE spar becomes 4 segments, as each of the two primary segments are sub segmented. Similarly for kingpost, queenposts, and keel will each be made of two segments each. So, looking at the count of final segments: 4, 4, 4, 4, 4, 4, 2,2,2,2: LLE,LTE, LCS, RLE, RTE, RCS, king, Lqueen, Rqueen, keel. So, 32 of one-meter segments. Pack length: 1 meter. Number of tube nests for pack is eight: 1,1,1,1,1,1,1,1 :: LLE, LTE, LCS, RLE, RTE, RCS, Ke-LQ-k, RQ :: for 8 beam nests for pack. An alternative might be to name left wing inner chord strut and left wing tip chord strut; and respectively those two strut parts might nest with the LLE nest and LTE nest. Similarly for the right wing. This alternative would reduce the beam tote-nest count to 6 nests. Smallish wing. There would be secondary packs of part: couplers, lines, sail. Sail would be segmented and wrapped around the beam pack. Line sets could be worn by the pilot during tote; small flex bag could hold couplers. A wheeled carting could be arranged for walking segments of the transportation. Camber formers/stuffers would be in a sub pack.

Chat's version of my above input:
Option for Some UPHG

Pack length: one meter

This configuration features a four-bay wing:
• The two central bays are unswept with slight dihedral.
• The two tip bays have both sweep and dihedral.

The fore and aft spars are segmented into two primary sections each (left and right leading edge, and similarly for trailing edges).
Each of these main segments is further subdivided into two sub-segments, resulting in four segments per spar line.
The same subdivision applies to the keel, kingpost, and the two queenposts (which also function as control-frame downtubes).
There are four chordwise struts — two on the left wing and two on the right — each also built from two sub-segments.

Final one-meter tube segment counts:
• LLE, LTE, LCS, RLE, RTE, RCS: 4 segments each
• Kingpost, Left Queenpost, Right Queenpost, Keel: 2 segments each
→ Total: 32 segments

Packing scheme (eight nests):
Each set of segments nests into its own tube nest:
• LLE
• LTE
• LCS
• RLE
• RTE
• RCS
• Ke-LQ-k (Keel, Left Queenpost, Kingpost)
• RQ (Right Queenpost)

Alternative nesting scheme (six nests):
If chord struts are renamed and grouped as Inner Chord and Tip Chord for each wing,
they may be nested with their respective spar nests:
• Left Inner Chord → LLE nest
• Left Tip Chord → LTE nest
• Right Inner Chord → RLE nest
• Right Tip Chord → RTE nest

This consolidation reduces the number of beam nests to six.

The wing is relatively small. Secondary packs would include:
• Couplers (in a small flexible pouch)
• Line sets (could be worn by the pilot)
• Sail (segmented and wrapped around the beam pack)
• Optional wheeled cart for urban transport
• Camber formers/stuffers packed separately
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Re: Ultra-Portable Hang Glider(s) UPHG

Postby JoeF » Thu May 08, 2025 10:06 am

The 32 segments may nest in seven nests for one approximately hexagonal pack:
Nest # Contents
Nest 1 :arrow: A, B, C, D, E, F, G
Nest 2 :arrow: A, B, C, D, E, F, G
Nest 3 :arrow: A, B, C, D, E, F
Nest 4 :arrow: B, C, D, E, F
Nest 5 :arrow: B, C, D
Nest 6 :arrow: B, C
Nest 7 :arrow: B, C
7nestsPacked.jpg
7nestsPacked.jpg (9.66 KiB) Viewed 31 times

Wrap sail segments around the hexagonal pack.

Pieces count is 32 tubes:
• LLE: :arrow: ABCD
• LTE: :arrow: BCDE
• LCS: :arrow: EF, FG
• RLE: :arrow: ABCD
• RTE: :arrow: BCDE
• RCS: :arrow: EF, FG
• Ke-LQ-k (Keel, Left Queenpost, Kingpost): :arrow: AB, BC, CD
• RQ (Right Queenpost): :arrow: BC

Go with one meter segments all for a one-meter pack and smallish HG.
Go with 4-ft segments all for a 4-ft pack and larger HG. One may choose to have some of the
segments be less than 4 ft to meet a shorter specification for a particular function.
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