Date: Wed, 27 Feb 2002 12:25:28 -0600 (CST)

Author: Paul Nord

Subject: Re: Air Track



We have 5 of the Ealing tracks. A couple of year ago our courseload
increased and we bought a 6th track from Pasco. The Pasco track is not as
good as the Ealing tracks. It's lighter weight and doesn't stay alligned
as well. Every other year we have to adjust the curvature of the track.
Also, the support feet are pretty cheep. Ealing used large fine-thread
screws. The Pasco supports are 10-32 screws with cap nuts. That makes
them both hard to adjust and not very sturdy.

Another odd difference is that the angle of the Pasco track is slightly
different than the Ealing tracks. The Pasco track works great with the
Pasco air carts. But, they're not interchangable.

My recommendation: Keep the Ealing tracks and spend the money on something

If that just won't do... How much are you asking for the old tracks? I'd
be interested in one, maybe two.


On Wed, 27 Feb 2002, Clifford Chen wrote:

> Tappers,
> I'm seeking advices about the air track.
> Our physics lab is using 8 sets 1.6 meter air tracks made by Ealing for
> about 30 years. Now we got $9,000 to replace them. I'm considering the
> PASCO 2 meter air track with all it's accessories. The PASCO stuff are
> somewhat different with the Ealing's, e.g. it use rubber band instead of
> metal band as the bumper at the end of the glider, it use the ball bearing
> pulley instead of the air pulley at the end of the air track etc.
> I'd appreciate someone has used the PASCO air track to share their
> experiences about the product. Is it a good choice to buy it? Any better
> bet? Is the old Ealing still available?
> Thanks in advance.
> Cliff Chen
> Occidental College