GORV - Digital Magazine Issue #42 | Page 35

RV FEATURE Does the manufacturer of your tow vehicle require a WDH to be fitted when towing? Suspension: Does the tow vehicle manufacturer (a) require, (b) recommend, or (c) prohibit, the use of rear axle booster springs or airbags? If required for towing, are they to be removed when not towing? If supplementary airbags are fitted, how are they to be attached to the chassis? Weight distribution hitch: Does the tow vehicle manufacturer (a) require, (b) recommend, or (c) prohibit, the use of a weight distribution hitch? If fitted, what rating should it be, and what setting should be used? Are there any restrictions or conditions regarding their use? Towing aids: Does the tow vehicle manufacturer (a) require, (b) recommend, or (c) prohibit the use of any other towing aids, such as mechanical or electronic ‘anti-sway’ systems? Engine power: From Isaac Newton’s laws of motion, it must be appreciated that it takes much more time – and much more (overtaking) distance – to accelerate a combination than it does to accelerate just the tow vehicle, over the same speed range. There is nothing more frustrating, and dangerous, than to be ‘stranded’ with not enough power on tap to get you out of a tight situation. It is suggested that the ratio of kilowatts to GCM rating (tonne) should be more than 25kW per tonne. For example, with a GCM Rating of six tonnes, the engine should have a power output of at least 150kW. / 35