One or two axles

glidergeek wrote:
On Nov 2, 2:52 pm, glider wrote:

Why have dual axles when a single axle will do the job.
Is this a need for heavy two placed sailplanes?
I know twin axles are beasts to wrestle when pushing it around unless
you want to go forwards and backwards.
Dual axles seem to be relatively popular in the UK.
Someone out there must have some explanation.
GA


Typically Cobra or Comet trailers with a 15m or standard class ships
in them weigh about 2000 lbs. Alco axles come standard on the Cobras
and the axles are rated about 1000 kg (2200 lbs). Add the extra weight
of an open class ship and bigger trailer to accommodate and you're
probably pretty close to 1200-1500 kg therefore it takes one more
axle.

My 18M ASH 26 E Cobra trailer has the 1300 kg (2870 pounds) Al-Ko axle,
which is adequate for even an Open Class motorglider like the Nimbus 4M
a friend has. Al-Ko offers the same style axles up to 8000 pound
capacity, but I don't know what capacities Cobra offers. I suspect the
major reason for choosing the dual axle trailer is for more stability.

--
Eric Greenwell - Washington State, USA
* Change "netto" to "net" to email me directly

* "A Guide to Self-launching Sailplane Operation" at www.motorglider.org