The Dacor Seachute was an interesting BC and some of its features may be lost on the "new generation" of divers. When true BC's started becoming popular vs safety vests, one version of BC was a "pillow" BC that was strapped on the front of the diver but did not have the horse collar shape, buoyancy was directed to the stomach/chest area (see a 1976 Seatec catalog). This model was somewhat popular with cave divers prior to the wing. Anyway, Dacor comes out with this Seachute BC, it was made up of 2 bladders within a "common" external cover. The upper bladder inflated around the neck like a safety vest and the lower bladder was the "Buoyancy Compensator", much like the pillow BC.
I know there must be some old timers that actually have dived with this bc and can give a dive report on how they operated. The link is from ebay, I AM NOT THE SELLER, but it really gives some good pictures of the unit.
Vintage Dacor Seachute Horse Collar 40 lb Buoyancy Compensator Vest Model BC4 | eBay
I purchased one of these in the day when they first came out. I worked at a dive shop at the time and got it at a discount, good thing because I was poor and come to think about it, I think I still am

There, I have made a post for the year to remain active. See y'all again in another year. Be safe, be well,
James, Nemrod