Today in WW II: 13 Aug 1944 US XV Corps [of US 3rd Army] captures Argentan, threatening to close the Falaise Pocket on the overextended Germans.  More 
13 Aug 1944 Gen. Bradley orders Gen. Patton to stop northward movement of XV Corps, preventing them from meeting Canadian troops and sealing the Argentan-Falaise pocket.
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Trailer, Athey, Track Laying (G-123)

The Athey Track Laying trailers were used for general cargo on sand, soft soils, or mud, often with a tracked prime mover. The Athey Truss Wheel Company made three models for the U.S. military during World War II:

  BT898-1 BT898-4 ET1076-1
Nomenclature: Trailer, Athey, Track Laying, 6-Ton, BT898-1 Trailer, Athey, Track Laying, 6-Ton, BT898-4 Trailer, Athey, Track Laying, 20-Ton, ET1076-1
Body: Platform, stake, with or w/o canopy Steel platform and stakes Stake with canopy
Weight, net: 6,300 lbs 8,540 lbs 14,700 lbs
Weight, payload: 12,000 lbs 12,000 lbs 40,000 lbs
Weight, gross: 18,300 lbs 20,540 lbs 54,700 lbs
Loading height: 47 in 52 in 53 in
Track width: 14 1/2 in 20 in 20 in
Manuals:* TM 9-790A, TM 9-1790A TM 9-790A, TM 9-1790A TM 9-790B, TM 9-1790A

* Parts list for all models is SNL G-123.

The trailers had no brakes, intended for low speed travel.

Trailer, Athey, Track Laying Photo Gallery

Troops transported over the mud on an Athey Track Laying Trailer, BT898-4, Attu, Aleutian Islands, Alaska, during WW II
Troops transported over the mud on an Athey Track Laying Trailer, BT898-4, Attu, Aleutian Islands, Alaska, during WW II.

>Omaha Beach in mid-June of 1944, after the D-Day beachhead has been secured.  Two Athey Track Laying Trailers can be seen, the nearer one appears to be a BT898-1 stake body.  This photo is a detail from a larger view of Omaha Beach
Omaha Beach in mid-June of 1944, after the D-Day beachhead has been secured. Two Athey Track Laying Trailers can be seen, the nearer one appears to be a BT898-1 stake body. This photo is a detail from a larger view of Omaha Beach.

Athey Track Laying Trailer, BT898-1, on Omaha Beach, near D-Day, 6 June 1944.  Two M-3A4 Hand Carts are on the sand in foreground
Athey Track Laying Trailer, BT898-1, on Omaha Beach, near D-Day, 6 June 1944. Two M-3A4 Hand Carts are on the sand in foreground.

Athey Track Laying Trailer, BT898-1, reference photo from TM 9-8000, Principles of Automotive Vehicles, Jan 1956
Athey Track Laying Trailer, BT898-1, reference photo from TM 9-8000, Principles of Automotive Vehicles, Jan 1956.

Athey Track Laying Trailer, BT898-4, reference photo from TM 9-2800-1
Athey Track Laying Trailer, BT898-4, reference photo from TM 9-2800-1.

Athey Track Laying Trailer, ET1076-1, reference photo from TM 9-2800-1
Athey Track Laying Trailer, ET1076-1, reference photo from TM 9-2800-1.