סורגים פתוחים - לא נראה לי שזה דחפור אמפיבי.
אגב, אתה צודק בזה שהוא אכן נקרא דחפור T-9 בצבא ארה"ב. הנה סקירה עליו מ"גלובל סקיוריטי":
Medium T-9 Dozer (D-7)
D7G Mine-Clearing/Armor Protection (MCAP) Bulldozer
The crawler tractor, commonly referred to as a dozer or bulldozer, is the basic item of earthmoving equipment for heavy dozing and clearing. The tractor is equipped with a power-shift transmission and a hydraulically operated semi-U-type dozer blade with a tilt cylinder and a rear-mounted winch or ripper.
The medium T-9 dozer (commonly referred to as a D-7) has an operating weight of 50,000 pounds of drawbar pull. Due to the low ground bearing pressure, the crawler tractor has the capability of working in adverse underfoot conditions and is normally the first piece of construction equipment on a job site. The tractor is used to perform dozing, rough grading, cutting and filling, and ripping and towing in support of general engineering tasks.
The D7 is a fully tracked, low speed, medium drawbar pull bulldozer with a ripper or winch. It is used by engineer units. The rebuild program, which brings the vehicles back to their original performance specifications, is expected to extend the service life by 15 years and will yield cost savings over a new acquisition.
The D7G mine-clearing/armor protection (MCAP) Bulldozer was engineered by Caterpillar Diesel for the U.S. Army to fulfill mine and UXO clearing requirements during Desert Storm. It proved effective and is in use in the Balkans today. The D7 MCAP is a D7G bulldozer with steel plate and bullet resistant glass armor additions. The armor was added to a D7G Caterpiller Dozer by cutting plywood templates prior to fabrication of the steel plates. The versatile D7 MCAP is capable of mine/UXO clearing purposes in uneven, light or heavily vegetated terrain. The operator must carefully remove mines and soil with the blade. The dozer chassis and armor is robust and protects the operator from potential blasts. It can work where many other mechanical mine clearing equipment cannot. When working on soft ground, it is advisable to have a second armored dozer as a "pusher" in case of lack of traction. The D7G MCAP cannot neutralize mines or unexploded ordnance. Rather, it exposes such materials during the dozing process. Unexploded Ordnance personnel are necessary for mine and unexploded ordnance neutralization procedures.
The D7 MCAP is dependable, versatile, and effective. It requires minimal maintenance. Many of its parts are available through U.S. military supply systems as well as through Caterpillar’s worldwide parts network. The D7G Bulldozer is a common item in the U.S. Army, and the D7 MCAP is a relatively simple modification to an existing, engineer "work horse."
The T-9 Dozer tractor shall be diesel engine driven, full tracked, low speed, with medium draw bar pull. The tractor shall be capable of completing construction and earthmoving tasks. These tasks include, but are not limited to moving, dozing and ripping earth to perform both road building and site preparation functions, construction and repair of logistical facilities, roads, helipads and airfields. The tractor will be equipped with a semi-U (straight) type blade with hydraulic tilt. The tractor shall have maximum drawbar pull in excess of 72,000 pounds, 35,000 pounds at a speed of not less than 1.4 mph, and 22,000 pounds at a speed of not less than 2.0 mph. These drawbar pulls shall be reserve tractive force as defined in SAE J872. All attachments will be hydraulically controlled. The vehicle shall have a Roll Over Protective Structure (ROPS). Two types of tractors based on the same commercial model are required. The Type I shall include a ripping bar equipped with 3 shanks capable of depths of not less than 24 inches. The Type II tractor shall be equipped with a rear mounted winch with a capacity of at least 50,000 pounds at a line speed of not less than 80 feet per minute. The tractors shall be capable of air transport by C-130 with removal of some components.
http://www.globalsecurity.org/milit...s/ground/d7.htm
למרות המחמאות שהוא זוכה להן בסקירה זו, היו תלונות רבות על הראות הגרועה שמאפשר המיגון ובקשות להחליפו ב D9 החדשים - שהם גדולים יותר, ממוגנים יותר טוב, בעלי ראות טובה יותר וגם מיזוג אוויר.
ראשי
צ'אט
24-07-2005, 12:42
ארץ ישראל לעם ישראל - הציונות תנצח! 
מגניב)
מצב כלאיים
