> "Dan Heath" <[email protected]> writes:
> No, but you need to use expansion springs. The compression
> springs are way too stiff, ask me how I know. Also, use springs,
> don't set it up with a direct connect. AS sells a nice compression
> spring set.
The compression springs offer intrinsic safety against a broken
spring leaving the tailwheel out of control. Even with the spring
broken, the end attachments are interleaved and the line secure.
Pet stores sell these springs quite cheaply for use on dog tie-out
chains to protect the pet from the shock of reaching the end of
the chain. They come in different sizes and compression force
according to the size of the pet ( or tailwheel ... :).
A tailwheel lock also provides a backup to a spring failure, and
may even prevent landing forces and accelerations or oscillations
from *causing* the springs to break.
How might such a fail-safe be accomplished with an expansion
spring ? A slip rod or stretch-limiting wire/cable thru the spring ?
Art Cacella 1970 American AA-1 N6155L "Dinkie"
1972 KR-1 Plans, still not started <sigh>
( but four metal homebuilts underway )
Winston-Salem, NC
________________________________________________________________
The best thing to hit the Internet in years - Juno SpeedBand!
Surf the Web up to FIVE TIMES FASTER!
Only $14.95/ month - visit www.juno.com to sign up today!
