National Free Flight Society

SEN 2834

  1. help from sen readers
  2. Need some Help
  3. USA Nats Info

help from sen readers

From: John Clapp
What is the smart way to use a pager motor to release a DT ;line?
Thanks for any help.
John Clapp


Need some Help

From: Graham Selick

I am in need of a good cylinder and piston plus the clip to retain the wrist pin for a   Nelson  2.5.  I purchased a nice engine, but apparently the previous owner, for some inexplicable purpose.  had disassembled it and failed to properly seat the circlip holding the pin. It let go at 25K+ rpm on the test stand and totally ruined the piston and sleeve.

Hopefully, somebody on SEN can steer me in the right direction for a new or good piston, cylinder and the wrist pin retainer.

Thanks,
Graham  Selick  – gselick@bellsouth.net


 

USA Nats Info

Info and entries for the 2021 USA Nats is here http://nats.modelaircraft.org/