Yes, the LORD shimmy damper has the same form, fit and function as the original Cessna damper.
The shimmy damper is available exclusively through Cessna authorized service stations and distributors.
The shimmy damper is available exclusively through Cessna authorized service stations and distributors. For information on how to purchase this product, please contact Mr. Kelly Reich at Cessna Aircraft at +1 (316) 831-4975.
The LORD part number SE-1051-2 is a direct replacement for the Cessna part number 0442512-1 and may be used on the Cessna 172, 152 and later models of the 150 aircraft. If the original part number is unknown the length of the shaft can be measured to determine the specific Cessna damper to be replaced. The length of the 0442512-1 shaft is approximately 8.5 inches. The length of the 0542119-2 shaft is nearly 10 inches. The LORD shimmy dampers are not available for the Cessna 172RG (Cutlass) or the Cessna 172HD (heavy-duty gear) or for the original Cessna 172 model produced between 1956 and mid-1959.
LORD Corporation provides a limited, prorated five-year warranty toward the replacement or repair of a defective unit. All you need to do to activate warranty coverage is fill out the warranty registration card attached to the product and return it to LORD Corporation.
Yes, LORD Corporation obtained both STC (Supplemental Type Certificate No: SA02137AT, May 26, 2000) and PMA (Part Manufacturer Authorization Project No: PQ 466EAD, Supplement No: 67, June 26, 2000) from the FAA for the Cessna 150, 152 and 172 aircraft.
LORD tested the damper between -30°F and +150°F without significant variation in performance.
No, the LORD shimmy damper provides excellent damping performance; however, the nose gear and tire must be in good mechanical condition for the damper to operate effectively. The tire should be round and balanced and all the linkages/collars should be tight and in good working condition for the damper to do its job. To support this requirement, LORD Corporation provides new fasteners with each damper to minimize the play between the damper and the nose gear attachments.
The LORD shimmy damper uses surface-effect damping. Essentially, LORD has replaced the metal piston in the traditional damper with a rubber piston that presses out against the inner diameter of the damper housing. This rubber piston then rides on a very thin film of grease. The rubbing action between the piston and the housing provides the damping. And, since there is no hydraulic fluid to leak out, you won’t need to service the damper.
NOTE: Since the technology featured on the LORD shimmy damper is different from the original equipment damper, the piston of a LORD damper is much harder to move by hand. It may be necessary to insert a screwdriver into the clevis on the rod to move it. This is not noticeable in the aircraft when it is installed.
LORD Corporation engineers performed an accelerated life test where they simulated 5,000 ground-air-ground (GAG) cycles in the laboratory and forced the damper to shimmy on every GAG cycle. The damper continued to operate correctly over the duration of the test and with only a small increase in damping force measured. This corresponds to approximately 10 years of intense usage, similar to the type of usage found in flight instruction aircraft.
Because the hydraulic fluid weight was eliminated, LORD Corporation was able to increase the diameter of the shaft from 3/8" to 1/2" stainless steel, without changing the overall weight of the damper. Although the heftier shaft is not guaranteed against bending, it is expected to be more durable than the original equipment shaft.
Just follow the authorized Cessna maintenance instructions.
Our damper is presently certified on the Cessna 150, 152 and 172. LORD Corporation is considering extending the product line to include the Cessna 175, 177, 182, 206 and 210 aircraft. Based on customer demand, LORD will pursue these models and other aircraft makes such as Beech and Piper. If you would like, we can record your name, aircraft model, phone number and address, and contact you when we have shimmy dampers available for additional aircraft.
All international deliveries will include an FAA Form 8130-3, which should provide the necessary documentation for installation on a non-U.S. registered aircraft.