While every TDA’s fifth wheel design provides a level of maneuverability and position ability just not found in other aerials, Ladder Tower has refined its TDA design over decades with customer feedback.

Today, Ladder Tower’s 100′ TDA’s are designed for departments that call for a compact, highly maneuverable design, lots of equipment and ladder storage, a narrow stabilizer spread and excellent visibility. With lengths as short as 55’6″, and wheelbases starting at 143″ the TDA provides advantages you can truly appreciate.

At a Glance

  • Short wheelbase trailer for tight urban streets
  • Up to 500 lb. tip-load
  • Expansive ground ladder storage
  • Narrow stabilizer spread
  • 2 H-style outriggers allow for quick setup and a faster response
  • 11’3″ overall travel height
  • Generous compartment space provides ample storage
  • Ladder Tower
  • Spartan

Angle of Elevation

-2° to 75°

Vertical Reach


Horizontal Reach

94′ 5″

Stabilizer Spread


Tip Load Rating

250 lbs. and 500 lbs.

Safety Innovations

Eight Air Bag Positions

Eight airbag positions, the most offered by any manufacturer, including knee and side curtain airbags. These give your apparatus the highest available impact and anti-ejection protection on the market.

Side impact protection:

Protects all occupants from side impact collisions, rollovers and occupant ejection. The only company in the industry whose airbags protect cab occupants from side impacts.

Driver knee airbags:

Protects against injuries resulting from hitting the instrument panel or other interior points of contact. Locks the lower body in place so the upper body can be slowed and protected by the steering wheel airbag.

Full side curtain airbags:

Protects from a side impact or a rollover with airbags up to three times larger than other manufacturers. Each rear side airbag is custom-sized for the crew area of every cab built, with the largest rear side airbag covering seven times the area of any other manufacturer.

Industry-First Outboard Sensors

State-of-the-art outboard sensors protect occupants from multi-angle impacts in the cab. These sensors are mounted at the outer perimeter of the cab providing a “zone of safety” inside the cab. Each sensor communicates back to the restraint control module that monitors which airbag should deploy and under what conditions.

Advanced Seatbelts

Pulls the occupant into the seat in the event of an impact, or rollover using pyrotechnic pretensioners that provide more force during the initial lock. After the occupant is pulled into the seat, load limiters release some of the webbing to control the occupant’s deceleration into the airbag system, helping to mitigate the strain on each occupant, further reducing seatbelt-related injuries.

360 Camera

At Spartan, we face reality head on with cabs that feature the most advanced safety provisions available in the market today. Designed and purpose-built for firefighters, the 360 camera is a forward-thinking safety apparatus , developed around the needs of the first responder.

Cab Construction

Spartan offers flat, 5″, 10″, 20″, and 24″ raised roof options that are reinforced with C-channel supports. As well as multiple seating configurations to provide your crew with extended legroom, improved visibility, additional storage and provides extra safety from triple-reinforced box front bulkhead, engine compartment, front and rear step assemblies.