South Midlands Communications Group

Aluminium Masts PA2 Series

Standard Series PA2/B

PA2SMC designed the PA2 series of versatile tubular alloy masts with first hand experience of the tough environmental conditions so often encountered in the field. The PA2 has a section wall thickness of 7 SWG (4.2 mm) and will withstand dropping on rocky terrain or being run over by vehicles and yet is light and compact enough to be stored unobtrusively in a portable shelter or carried in a Land Rover.

Mast sections have expanded ends for easy assembly and quick erection by unskilled staff. For example, a three man team can erect the 48ft or 60ft mast in less than half an hour, following our practical installation instructions. See the operating instructions.

From a wide selection of stock components, masts can be supplied to suit customers' requirements, from a transportable mast complete with canvas carrying bags and all necessary hardware for erection, to installations for mounting permanently, complete with masthead and intermediate halyards, masthead lighting to ICAO standards, erection kit and all ground anchors.

Lightweight Series PA2/BML

As a development of the well established PA2 Series Masts, SMC introduced the lighter duty 2" OD x 14 SWG PA2 / BML Series for users who do not require the strength and ultra-rugged design associated with the 1 29/32" OD x 7 SWG PA2 / B Series Masts.

All mast sections in the PA2 / BML Series are expanded on one end, forming a female socket which ensures easy and quick assembly requiring no tools. All masts are supplied complete with necessary stays in 6mm pre-stretched polyester, ground steelwork, a halyard for wire antennas and unless specified, a carrying kit bag.

Available in 6' (2m) height increments from 24' (7.3m) to 48' (15m) the PA2 / BML masts are available on a very short delivery time, and can be adapted to suit customers' special requirements.

PA2 Headload and Wind Ratings

The standard headload for all masts is either:-

  • A) An antenna plus mountings having a windage area of 0.3 sq.m (= 67kg drag at 16Okph)
  • B) A single wire VHF dipole or similar up to 30m long between supports and initial tension 30kg. Larger headloads or higher windspeeds to customers specification on application may be considered.
MAST TYPE
HEIGHT
MAX WIND SPEED
Guy
   FT METRES M/SEC MPH Radius (M)
6ft B Series
PA2 / B24 / 6 24 7.32 40 90 3.66
PA2 / B30 / 6 30 9.14 37.50 84 4.57
PA2 / B36 / 6 36 10.97 35 78 5.49
PA2 / B42 / 6 42 12.80 32.50 73 6.40
PA2 / B48 / 6 48 14.63 30 67 7.32
PA2 / B60 / 6 60 18.29 30 67 0.90
10ft B Series
PA2 / B20 / 10 20 6.10 45 100 3.05
PA2 / B30 / 10 30 9.14 45 100 4.57
PA2 / B40 / 10 40 12.19 40 90 6.10
PA2 / B50 / 10 50 15.24 35 78 7.62
PA2 / B60 / 10 60 18.29 30 67 9.14
6ft BML Series
*PA2 / B24ML / 6 24 7.32 35 78 3.66
*PA2 / B30ML / 6 30 9.14 30 67 4.57
*PA2 / B36ML / 6 36 10.97 27.50 62 5.49
*PA2 / B42ML / 6 42 12.80 25 56 6.40
*PA2 / B48ML / 6 48 14.63 20 45 7.32
FOUNDATION LOADs KG No.of WEIGHT ERECTION
GUY
ANCHORAGE BASE Guys Kg (approx) KIT REF
VERTICAL
HORIZONTAL       MAST ONLY   
  
180 110 290 2 x 3 23 N/A
220 145 360 3 x 3 29 N/A
245 165 405 3 x 3 35 PA2 / B42 / 36EK
270 180 455 4 x 3 42 PA2 / B42 / 36EK
280 195 490 4 x 3 48 PA2 / B60 / 48EK
295 215 540 5 x 3 55 PA2 / B60 / 48EK
  
185 115 285 2 x 3 24 N/A
245 165 400 3 x 3 32 N/A
325 235 545 4 x 3 40 PA2 / B42 / 36EK
355 265 625 5 x 3 50 PA2 / B60 / 48EK
375 285 680 6 x 3 55 PA2 / B60 / 48EK
 
155 90 250 2 x 3 16 N/A
180 110 300 3 x 3 20 N/A
195 125 325 3 x 3 24 N/A
190 130 345 4 x 3 30 PA2 / B48 / 42EK
190 130 360 4 x 3 38 PA2 / B48 / 42EK

 

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