ACN Number A 319 and A320 ?
Joined: Oct 1999
Aviation Qualifications: ATPL
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From: Den Haag
Prof. Airport Engineer
Joined: Oct 2000
Posts: 726
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From: Australia (mostly)
The chart for the A320 will also be very close to the chart for the A319, and the A318 and the A321. Since they all have the same undercarriage, all that really changes in terms of ACN is the aircraft weight and in practical terms, the same ACN chart can be used for all. This assumes that the model sub-variants have the same main gear wheel configuration and a fairly similar tyre pressure. This holds true for other aircraft families (such as the Boeing 737).
Even subtle changes such as using slightly wider tyre spacing on an undercarriage leg to accommodate uprated tyres has little effect on ACN provided that the number of tyres is unchanged. The only time that things start to change much is when more tyres are added (A320 bogie), or another undercariage leg is added (such as the DC-10 sub-variants).
I also note that changing the tyre pressure does not change much in terms of ACN, even if low pressure tyres are used (provided it is the same main gear undercarriage configuration).
Even subtle changes such as using slightly wider tyre spacing on an undercarriage leg to accommodate uprated tyres has little effect on ACN provided that the number of tyres is unchanged. The only time that things start to change much is when more tyres are added (A320 bogie), or another undercariage leg is added (such as the DC-10 sub-variants).
I also note that changing the tyre pressure does not change much in terms of ACN, even if low pressure tyres are used (provided it is the same main gear undercarriage configuration).
