ShoreGuy
The landing gears on freighters are stressed more than their passenger counterparts for the obvious reasons – higher average takeoff weights and higher average landing weights
Um I dont think so, on the 757 my charter friends always operate with full pax loads and a high ZFW. we on the otherhand have reduced our certified MTOW as even a full load of freight is often lighter than a full bulk load of pax, sounds crazy i know but airfreight items are usually high value not neccessarely high weigh.
Look at a sort ramp for FedEx, UPS, Airborne, DHL, etc. The aircraft are packed together
our aircraft are operated the same as pax ones in all areas, so nose in push out is normal in the hubs which would cause the same side loads as on a pax aircraft. Although i am unsure of the details of our USA operations. Indeed our maint standards are often higher as the aircraft spend all day and most weekends on the ground allowing our engineers more time to crawl over them, unlike the high utilisation rates of the passenger world.