Difference between revisions of "AB-903"

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(Created page with "==Purpose and Use== Purpose and Use a. Mast AB-903/G provides the means to raise such antennas as Antenna AS-1729/VRC 30 feet above ground level. The retracted height of the m...")
 
m (BinD moved page AB-903~G to AB-903)
 
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[[File:AB-903-G.png]]
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==Purpose and Use==
 
==Purpose and Use==
 
Purpose and Use
 
Purpose and Use
Line 5: Line 8:
  
 
==Technical Characteristics==
 
==Technical Characteristics==
:Height retracted
+
;Height retracted
::6 feet.  
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:6 feet.  
:Height extended
+
;Height extended
::29 feet, 3 inches.  
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:29 feet, 3 inches.  
:Time required to raise mast (after installation of group).
+
;Time required to raise mast (after installation of group).
::25 seconds by hand.
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:25 seconds by hand.
:Method of extending mast
+
;Method of extending mast
::Cable-driven telescope, tubular sections, activated by crank handle.
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:Cable-driven telescope, tubular sections, activated by crank handle.
:Tube sizes
+
;Tube sizes
::4 1/4-inch diameter to 1 1/2-inch diameter
+
:4 1/4-inch diameter to 1 1/2-inch diameter
:Number of tubular segments
+
;Number of tubular segments
::6
+
:6
:Installation provisions
+
;Installation provisions
::Ground or vehicular.  
+
:Ground or vehicular.  
:Number of guys
+
;Number of guys
::6 for ground installation.  
+
:6 for ground installation.  
:Number of stakes
+
;Number of stakes
::3.
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:3  
:Material
+
;Material
::Aluminum alloy tubing, corrosion-resistant cables and hardware, aluminum alloy mounting brackets, Dacron guy ropes.
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:Aluminum alloy tubing, corrosion-resistant cables and hardware, aluminum alloy mounting brackets, Dacron guy ropes.
:Weight:  
+
;Weight:  
::Mast
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:Mast
:::40 pounds.  
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::40 pounds.  
::Mounting brackets, guys,anchors
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:Mounting brackets, guys,anchors
:::14.75 pounds.  
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::4.75 pounds.  
 
:Maximum wind loading
 
:Maximum wind loading
::35 mph without top guys; 50 mph with top guys.
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:35 mph without top guys; 50 mph with top guys.
:Load limitation
+
;Load limitation
::20 lb masthead load over area of 2 square feet (Maximum allowable load on extended mast).
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:20 lb masthead load over area of 2 square feet (Maximum allowable load on extended mast).
  
 
+
==Reference Files==
 
 
==Additional Files==
 
 
;{{pdf|TM_11-5985-263-15.pdf|TM 11-5985-263-15}}
 
;{{pdf|TM_11-5985-263-15.pdf|TM 11-5985-263-15}}
 
:OPERATOR'S, ORGANIZATIONAL, DIRECT SUPPORT,
 
:OPERATOR'S, ORGANIZATIONAL, DIRECT SUPPORT,
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::MAST AB-903/G (NSN 5985-00-933-2197)
 
::MAST AB-903/G (NSN 5985-00-933-2197)
 
::May 1970
 
::May 1970
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 +
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;{{pdf|TM 11-5985-263-24P.PDF|TM 11-5985-263-24P}}
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:ORGANIZATIONAL, DIRECT SUPPORT
 +
::AND GENERAL SUPPORT MAINTENANCE
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::REPAIR PARTS AND SPECIAL TOOLS LIST
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::(INCLUDING DEPOT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS)
 +
::MAST AB-903/G (NSN 5985-00-933-2197)
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 +
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[[Category:Military/Masts]]
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{{DISPLAYTITLE:AB-903/G}}

Latest revision as of 23:57, 23 April 2018

AB-903-G.png


Purpose and Use

Purpose and Use a. Mast AB-903/G provides the means to raise such antennas as Antenna AS-1729/VRC 30 feet above ground level. The retracted height of the mast is 72 inches. The mast may be set up on the ground, or mounted on vehicles. The mast maybe raised to full height by handcranking.


Technical Characteristics

Height retracted
6 feet.
Height extended
29 feet, 3 inches.
Time required to raise mast (after installation of group).
25 seconds by hand.
Method of extending mast
Cable-driven telescope, tubular sections, activated by crank handle.
Tube sizes
4 1/4-inch diameter to 1 1/2-inch diameter
Number of tubular segments
6
Installation provisions
Ground or vehicular.
Number of guys
6 for ground installation.
Number of stakes
3
Material
Aluminum alloy tubing, corrosion-resistant cables and hardware, aluminum alloy mounting brackets, Dacron guy ropes.
Weight
Mast
40 pounds.
Mounting brackets, guys,anchors
4.75 pounds.
Maximum wind loading
35 mph without top guys; 50 mph with top guys.
Load limitation
20 lb masthead load over area of 2 square feet (Maximum allowable load on extended mast).

Reference Files

Adobe PDF icon.png TM 11-5985-263-15

OPERATOR'S, ORGANIZATIONAL, DIRECT SUPPORT,
GENERAL SUPPORT, AND DEPOT MAINTENANCE MANUAL
INCLUDING REPAIR PARTS AND SPECIAL TOOL LISTS
MAST AB-903/G (NSN 5985-00-933-2197)
May 1970


Adobe PDF icon.png TM 11-5985-263-24P

ORGANIZATIONAL, DIRECT SUPPORT
AND GENERAL SUPPORT MAINTENANCE
REPAIR PARTS AND SPECIAL TOOLS LIST
(INCLUDING DEPOT MAINTENANCE REPAIR PARTS AND SPECIAL TOOLS)
MAST AB-903/G (NSN 5985-00-933-2197)