in the aft portion 64 or forward portion 62 of the inner arm 54 it should be understood that the magnitude and direction of the offset and the section thickness can be varied as necessary to match the deflection of the rotating section 34 further alternate embodiments of the present invention can include asymmetrical construction and attachment of other static structure such as the outer arm 50 and the attachment arm 52 in operation the static section 32 of the seal 30 is positioned at a nominal location relative to the rotating section 34 of the seal the nominal position of the static and rotating seals 32 34 can include full engagement between the two or alternatively provide a gap therebetween when the operating temperature of the fluid in the engine 10 increases the radial position of the knife edges 38 and the static seal member 60 generally will deflect outward in a radial direction due to design and operating conditions the rotating section 34 may deflect asymmetrically in the radial direction utilizing the design techniques disclosed by the present invention the static section 32 of the seal can substantially match the asymmetrical movement of the rotating section 34 thereby minimizing the variation in gap distance between the rotating and static sections 32 34 of the seal 30 while the invention has been described in connection with what is presently considered to be the most practical and preferred embodiment it is to be understood that the invention.