Tost brake bolt shears off

Ineffective brakes is one thing. Brakes where bolts shear off during normal
use is a completely different category.

Mike Schumann

"Bruce" wrote in message
...
Anyone who relies on the ineffectual brake fitted to most older gliders is
an optimist of note.

On the 4.00 X 4 hub common to these aircraft you have a couple of square
centimetres of friction material, with non energising shoes trying to stop
around 300 - 350kg of glider moving at anything up to 100km/h. Most are
good for one retardation only, at best, then they fade severely.

In my experience, with a lot of fettling work one can achieve a brake that
is reliably weak - which is a whole lot better than the alternative. But
experience indicates that one should still discount it ever working
effectively in an emergency.

You would be distressed to see how much damage you can cause at walking
speed with a 15m single seater. Just think what a 26m+ motorised uber bug
smasher could do with all it's inertia. (although they tend to have
halfway decent disk brakes these days)

In any case the man has it right - Don't point your glider at anything you
intend to keep, especially on a downhill. There is no need to provoke
Murphy.

Mike Schumann wrote:
"never point the plane at anything valuable whilst expecting this brake
to stop it..."??????????
snip



--
Posted via a free Usenet account from http://www.teranews.com

Chris Reed wrote:

I've never yet met a reliable glider wheel brake.

You should meet a glider with a Cleveland wheel and brake, like those
used on Schleicher gliders from the ASW 20 B/C and later. These are the
same brakes used on thousands of airplanes, and they are effective and
reliable.

--
Eric Greenwell - Washington State, USA
* Change "netto" to "net" to email me directly
* "Transponders in Sailplanes" http://tinyurl.com/y739x4
* "A Guide to Self-launching Sailplane Operation" at www.motorglider.org

Eric Greenwell wrote:
Chris Reed wrote:

I've never yet met a reliable glider wheel brake.

You should meet a glider with a Cleveland wheel and brake, like those
used on Schleicher gliders from the ASW 20 B/C and later. These are the
same brakes used on thousands of airplanes, and they are effective and
reliable.

They're approved refits on some gliders in some countries: our (UK)
club's Puchacz was retro fitted with a Cleveland and now stops reliably
and the Williams SZD Junior also has a Cleveland brake and also stops.
This is something Juniors are not noted for with the standard brake.

Another advantage is the ease of brake adjustment.


--
martin@ | Martin Gregorie
gregorie. | Essex, UK
org |

Hi Eric - I have - but not one that fits a 4.00 by 4 ? If you know how there are
many who would benefit.

Bruce

Eric Greenwell wrote:
Chris Reed wrote:

I've never yet met a reliable glider wheel brake.

You should meet a glider with a Cleveland wheel and brake, like those
used on Schleicher gliders from the ASW 20 B/C and later. These are the
same brakes used on thousands of airplanes, and they are effective and
reliable.

Anyone what the hydraulic disk brake system on the HpH 304C is? I had
trouble with one this past weekend -- right after having a shop
replace the inner tube. The owner's manual doesn't lend any light on
the issue.

304CZ hydraulic disk brake is TOST system as pictured on my website
sounds to me like maybe your mechanic made a boo-boo

tim
Please visit the Wings & Wheels website at www.wingsandwheels.com


"mattm" wrote in message
ups.com...
Anyone what the hydraulic disk brake system on the HpH 304C is? I had
trouble with one this past weekend -- right after having a shop
replace the inner tube. The owner's manual doesn't lend any light on
the issue.