Trailer

Aerovault MKII has an aluminum semi-monocoque chassis and body.

Stable while passing 18 wheelers at 80 MPH

U-turn test

Uneven surface stability test

Tow Car

  • 2014 Mercedes ML 350 4MATIC

  • Towing Capacity: 7,198 lbs.

  • Max. Drawbar Nose Weight: 575 lbs.

  • Height to bottom of hitch opening 11-1/4” – center 12-1/4”

SL-C

  • Length: 164"

  • Width: 74"

  • Weight: 2,900 lbs. ( conservative for heavily-built street car with fluids)

 Trailer

  • AeroVault MKII (link)

  • Weight: 2,340 lbs.

  • Tongue Weight: 260 lbs.

  • Length: 23’-2”

  • Width: 8’-6”

  • Height: 7’-6”

  • Interior Length: 199”

  • Ball: 2-5/16”

  • Electric Connector: Standard 7 Flat Pin Plug

  • Axles: Dexter 3,500 lb rubber ride Torsion Flex, EZ lube

 Analysis

  • Longitudinal: 199” – 164” = 34”  (17” clearance in front and rear)

  • Latitudinal:  80” – 74” = 6” (3” clearance each side)

  • Expected GTW: 2,340 + 2,900 + 500 = 5,640 (trailer + car + stuff)

  • Safety @ Expected GTW: 7, 198 – 5,640 = 1,558 (22%)

  • Tongue Weight should be 9-14% of gross trailer weight (GTW) 

    • Empty: 2,340 (211- 328)

    • Expected GTW: 5,640 (507-790)

Accessories

  • Brake Controller: Tekonsha 90195 P3

  • Mac’s Custom Tie Downs

    • VersaTie Track, double-stud tie down, double-stud idler

  • Winch:

  • Tire Pressure Monitor:

  • Hitch:

 The industry standard for tongue weight is anywhere between nine percent and 14 percent of your gross trailer weight (GTW.) 

Hitch Height

The top of the hitch ball should be at approximately 16” when the Aerovault is connected for a level tow. For most vehicles this means setting the top of the hitch ball between 18"-19" from the ground when the Aerovault is not connected.

The ball is 2-5/16” (~2-1/4”). According to eTrailer.com I should measure to the top of the inside of the hitch hole (13.25”) and to the bottom of the ball. Adjusting AeroVault’s number that’s 13.75” when connected and 15.75”-16.75” when not connected. So that’s a 2.5”-3.5” rise.