Jan Fronk of Highridge Design, Provo, Utah is an
engineer who has developed a beautiful hydraulic system that controls the
extension/retraction of landing gears and gear doors for the Stewart S-51
Mustang Replica. Currently there
are 15 of his kits being installed.
They are of the highest quality.
His system would integrate downstream from existing hydraulic pumps.
I was talking with him about the possibility of adapting
them to work with the Legacy and Lancair IV aircraft and he is most interested.
He asked me to make a posting to
the LML and see if there is any interest.
His Hydraulic Sequencing Control Unit would provide the
following:
- Electronic
computer controlled manifold valves that control landing gear
extension/retraction and door sequencing.
- Development
of landing gear inner doors that are sequenced and controlled by the same electronic
manifold valve
- Electronic
controlled spool cartridge valves for hydraulic fluid direction control
- All
hydraulic actuators
- All
mounting plates, wiring harness, and hardware
- Detailed
installation instructions
- Circuit
protected logic boards including static electricity protection
- Processor
Code is Watch Dog protected
This is the system for the S-51 Mustang. If there is interest for the Legacy / IV
aircraft then he would begin an adaptation program. Currently the price for the S-51 is
$3875.00.
It seems there has been much discussion on the LML about
hydraulic problems encountered in the Legacy systems. Perhaps solutions could be incorporated
into the retrofit program of Jan’s system.
Your comments and replies are appreciated.
Bryan J. Burr
Super ES
N132BB