Fixed Multibar Descenders

Many of these are whaletails. These achieved popularity in Australia, but because of some early incidents, they never caught on in the USA. Personally, I think that their weight makes them too heavy for general use, but their ruggedness is advantageous for some rescue applications.

ID	Device ↓	Description	Acquired	Weight ↓	Height ↓	Width ↓	Thickness ↓	Std. volume ↓
406	American Engineering	Milled Al whaletail, soft anodized, 7 bar, double ended, 2 horns, full length safety gate	John E. Weinel, Inc., 1991	743	284	95	19	513
405	American Rescue Systems	5 unfinished bars bolted to each side of aluminum spine, hinged steel sides	John E. Weinel, Inc., 1989	1471	323	82	51	1351
404	Army Lowering Device, Version A	Five hollow bars welded to a stamped frame, hard anodized, sewn sling, clip	Jacques Grieff, 1986	633	243	59	38	545
526	Army Lowering Device, Version B	Five hollow bars welded to a stamped frame, hard anodized, like #404 w/o sling	Paragear, 1995	358	243	59	38	545
3261	CMI CMIGT	Milled Al whaletail, soft anodized, 6 bar, double ended, 2 safety gates, machined gate nuts, eye groove, hole	CMI, 2023	729	298	79	25	598
1353	Krok Crab Heavy	Bent steel plate, 2 x 3 bollards /w swinging gates, 2 x side bollards with bent end plates.	Gear4Rocks, 2012	1278	184	163	44	1323
1354 1358	Krok Crab Light	Bent steel plate, 2 x 3 bollards /w swinging gates, 2 x side bollards with bent end plates, front strap.	Gear4Rocks, 2012	725	140	151	42	882
1095	Krok Half Crab	Bent steel plate, 3 bollards /w swinging gate, side bollard with bent end plate.	PetrenkoWorld, 2007	662	202	79	36	582
1391	Krok SUR	Steel frame, 4 full and two half Al bollards, sliding cover, spring-loaded latch	Gear4Rocks, 2013	561	244	50	37	446
918	Rocky Mountain Rescue Group Belay Plate	Milled Al whaletail, hard anodized, 2-sided, 4-bar, double-ended, oval eyes	2002	413	278	76	14	289
3284	Rope Fire Escape Manufacturers (a.k.a. Plush) Descender	Cast Fe descender /w 13.7mm. manila rope	Renee Hastings, 2023	275	174	43	24	180
905 2414	Russian Scissors (Ножницы)	Milled steel, unfinished, Slotted frame with pivoting bar piece, round eyes	John E. Weinel, Inc., 2001 Bob Thrun Collection, 2017	368	240	35	9	76
576	Single Rope Technique GT16a	Milled Al whaletail, soft anodized, 4 bar, double ended, safety gate, machined gate nut, eye groove	Single Rope Technique Equipment, 2000	499	216	79	25	435
413	Single Rope Technique GTL	Milled Al whaletail, soft anodized,5 bar, double ended, 2 safety gates	John E. Weinel, Inc., 1989	600	245	80	25	490
410 2430	Single Rope Technique GTM	Milled Al whaletail, soft anodized,3 bar, single ended, safety gate	John E. Weinel, Inc., 1989 Bob Thrun Collection, 2017	297	121	80	25	242
572	Single Rope Technique GTR5a	Milled Al whaletail, soft anodized, 6 bar, double ended, 2 safety gates, machined gate nuts, eye groove, hole	Single Rope Technique Equipment, 2000	721	297	79	25	596
571	Single Rope Technique GTRa	Milled Al whaletail, soft anodized, 5 bar, double ended, 2 safety gates, machined gate nuts, eye groove, hole	Single Rope Technique Equipment, 2000	617	255	79	25	512
414 2431	Single Rope Technique S150, Version A	Milled Al whaletail, soft anodized,5 bar, double ended, 2 safety gates, machined gate nuts, eye groove	Raven Products, 1990 Bob Thrun Collection, 2017	623	245	80	25	490
415	Single Rope Technique S150, Version B	Milled Al whaletail, soft anodized,5 bar, double ended, 2 safety gates, machined gate nuts, eye groove, hole	Inner Mountain Outfitters, 1991	626	245	80	25	490
411 412	Single Rope Technique S160, Version A	Milled Al whaletail, soft anodized,3 bar, double ended, safety gate, machined gate nut, eye groove	Raven Products, 1990 Inner Mountain Outfitters, 1991	340	155	82	25	318
2517	Single Rope Technique S160, Version B	Milled Al whaletail, soft anodized,3 bar, double ended, safety gate, machined gate nut, eye groove	Ed Sira, 2019	339	155	80	25	314
408	Snake	Bent from 10 mm. stainless steel rod	John E. Weinel, Inc., 1986	443	376	80	10	301
409	Spelean Whaletail, Version A	Cast whaletail, unfinished,6 bar, double ended, safety gate	Speleoshoppe, 1979	524	275	65	28	501
1319	Spelean Whaletail, Version B	Milled Al whaletail, unfinished,6 bar, double ended, safety gate	Tactical & Rescue Gear, 2012	556	275	73	32	638
1171	Storrick – Gerald Wood Whaletail	Milled Al whaletail, unfinished, 4 bar	Gary Storrick, 2008	624	252	60	20	295
3265	Storrick – Abalone Descender	Milled Al wrap-type whaletail, 5 bars, 2 ears	Gary Storrick, 2023	591	279	67	21	387
416	Storrick Whaletail	Milled Al whaletail, unfinished, 6 bar, double ended, 2 safety gates, noncommercial	Robert W. Storrick, 1978	710	280	72	25	504
1397	TDPUSA Model FLR-5	Milled Al whaletail, unfinished, 6 bar, double ended, 2 safety gates /w plastic thumb nuts	Kent Luttrell, 2013	705	298	81	25	612
2448	Unknown Whaletail	Milled Al whaletail, unfinished, 6 bar, double ended, safety gates, noncommercial	Bill Liebman, 2017	550	277	47	19	239