Aircraftscales.com a division of Jackson Aircraft Weighing Systems LLC provides Aircraft scales, Aircraft Weighing Equipment, Helicopter Scales and Large Jet Under Axle Weighing Systems.


Jack adapters are designed to enable you to use your aircraft jack to weigh your aircraft or helicopter. There are three types of adapters we manufacture:

Over Top Jack Adapters "OTJA" These are used with older Meyer jack types or other jack types that have no mounting provision.

Direct insert adapters mostly used for Tronair brand jacks. TA1.6 is a direct drop in that replaces your current adjustable ram tube.

Under axle weighing adapters, these are drop in adapters used with our axle jacks to raise the height of the cells, LC-0, LC-0.5, LC-1.5, LC-2.5, LC-3.5

Standard one inch top of jack mounting: Tronair Jack

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Many jacks have a standard jack cup that are removable, check your jack for the removable cup and determine if you have the one inch hole to mount our load cell stud into.
Here is a load cell with the stud fitted, it will interface into the jack ram to mount your load cell.

3.5 OTJA Over Top Jacks Adapters

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3.5 OTJA adapters use set bolts to grab your jack ram for mounting, 17-4 stainless, CNC manufactured to OEM tolerances
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Our 3.5 OTJA Over Top Jack Adapters are 17-4 stainless and create the one inch mounting hole for use with jacks that do not have the mounting provisions.

Large jack/jet 5.0 OTJA Over Top Jacks Adapters

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Shown here is a 737 "Unknown Jack" that is commonly found. They do not have the one inch mounting hole, but using our adapter, you can fit our load cells directly to the top of the jack as shown.
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Here is the set up for the main wing jack, this unit was our wireless system using our 5.0-OTJA adapter

Tronair jack, TA1.6 drop in jack adapters.

Tronair jacks normally have a removable cup, however not all Tronair jacks have this feature, or the jack ram has been damaged and can not mount a aircraft weighing cell.

We have developed our TA1.6 adapter that is a drop in replacement for the actual jack ram. Our adapter provides a better fit, finish and results when used in accuracy and stability.

We have three different sizes of adapters and they all fit in the main jack ram hole on your Tronair jack.

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Here is the adapter assembly, it is 17-4 stainless and is a direct drop in for Tronair jacks with the extension tube removed.. This equipment is only available from www.aircraftscales.com and www.helicopterscales.com
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The adapter was installed in this helicopter jack ram, the original ram tube was removed and replace with our TA 1.6 weighing adapter, it can be seen just under the cell. This adapter does many things to assist you in weighing, it makes the distance between the jack and jack point smaller with a cell installed and gives stable support in mounting.
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Remove your ram tube and mount the TA1.6 directly into your main jack ram.
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Check your Tronair jack to make sure the hole size is as large as shown to fit our adapters. Some jacks may require the removal or rust, or cad plating inside the ram tube to allow the adapter to fit.
We now have two pages for jack adapters, click the pictures below for the type you are interested in.
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Standard jack adapters are available for all types of jacks. Simply determine which type and size of jack ram you have to determine which jack adapter size you will need. Click this picture to go to our Standard jack adapter page.
Special helicopter adapters are avialble for the Tronair jacks that have the removeable extension tube.
Helicopter application Tronair jack adapter. Special helicopter adapters are avialble for the Tronair jacks that have the removeable extension tube. Click this picture to go to the Tronair jack adapter page.
Standard aircraft jack adapters are available in two sizes, our 3.5 OTJA and our 5.0 OTJA

Our Tronair jack adapters make your weighing job quick and easy.