It's a Delta Wing Hang Glider

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1975 P16 "Spring Rain"Sail # 642
Home Built 2004 Optimist-Delta "Unity"
So old it has Dino hide for a sail Chrysler "Pirateer"
Steve
Oyama BC
Lat 50.1167 N
Long 119.3667 W
1700 ft
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So it was a trick question! I didn't guess because at first look the sail looked like a million Sunfish style dinghies that have used the lateen rig.

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Damon Linkous
1992 Hobie 18
Memphis, TN

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I would say it's more of a lugger, the top "boom" or lug is paralell with the mast, not fore.
I left the center pole in as well....jus cuz, so a combination junk rig too...no?
Junkylug.....

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1975 P16 "Spring Rain"Sail # 642
Home Built 2004 Optimist-Delta "Unity"
So old it has Dino hide for a sail Chrysler "Pirateer"
Steve
Oyama BC
Lat 50.1167 N
Long 119.3667 W
1700 ft
--

If you look close at image 16, you will see it

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1975 P16 "Spring Rain"Sail # 642
Home Built 2004 Optimist-Delta "Unity"
So old it has Dino hide for a sail Chrysler "Pirateer"
Steve
Oyama BC
Lat 50.1167 N
Long 119.3667 W
1700 ft
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