All aircraft have a Maximum Authorised Take-off Weight. This weight is determined by the aircraft manufacturer and may not, under any circumstances, be exceeded. The weight itself is derived according to numerous factors, aircraft performance and safety being the two main factors.
The distance an aircraft has to fly determines how much fuel it will need to carry. The amount of fuel the aircraft requires, will determine how many passengers and how much baggage may be carried.
As a basic rule, you are only allowed 10kgs of baggage per passenger. However, depending on the route being flown, aircraft being chartered and the number of passengers, this can change considerably. For example, one passenger travelling from Harare to Kariba, will be allowed more than 10kgs baggage, as the flight distance is relatively short and therefore the fuel requirement is relatively small. However, four passengers travelling from Harare to Johannesburg may only be allowed 5kgs of baggage each, as the flight distance is long and the fuel requirement is large.
Not only is the weight of the baggage a consideration, but so to is the bulk/dimentions of the baggage. Certain suitcases (generally the hard case variety) cannot fit into light aircraft. Soft, squashable duffle bags are preferable.
Some of the larger passengers may also have practical difficulties in certain aircraft i.e. boarding and exiting the aircraft. You are strongly advised to seek guidance from our operational personel in this regard (info [AT] guthrieaviation [DOT] com). Failure to do so will only result in your own disappointment.