Hmm....Seems this topic is skewing off from the intent of its original post. I'm interested in the opinions of aircraft structual engineers and the like. The fact is...the Forward Slip IS a valid flight manuever.
I'm not interested in the opinions of pilots who keep their bank limiter set to 10 degrees in the traffic pattern and who don't know the difference between a Forward Slip and a Side Slip. Who consider a standard rate turns, "S" turns and "360's" to be the realm of aerobatics. Who "**** their pants" with the loss of their FDs. You guys can "kiss my @$$". BTW, Eli Vator, that wasn't me.
So....If you have any knowledge from a structures or areodynamics standpoint, "like UAM's post". I'd like to hear from you. Otherwise, move on!