Trusted Repair & Overhaul Facility

I am building a ¾ scale P-51 that was designed by Marcel Jurca. I designed an electro-hydraulic retraction system to use instead of the hand cranked system in the plans. I secured a new Parker Oldine pump, which was pre set at 600 psi. This was not enough pressure to raise the landing gear. I was searching for a Prestolite pump, and through a series of calls ended up talking to Bryan Cox of Cox Airparts. After much discussions, he asked me why not just send him my pump and he would reset the internal by pass to give me 1500 psi which would be enough to raise the gear. Needless to say, the pump was shipped to him the next day. To my surprise it was back in my hands in less than a week and retracted the gear just the way it should. I am very pleased to say that this was one of the best experiences I have had dealing with venders.

Richard Smith

Thanks for helping us out with the 1280514-12 actuator. We flushed the system and installed new flexible hoses.  We swung the gear many times and leaked checked with no leaks noted and everything worked good. Thanks again for doing a great job on this actuator.

George Lapaseotes | L&L Aviation LLC

I'm the installing mechanic for the Juergen Koehn's Rockwell Commander 114A GT power pack. I am very happy with the power pack and the information Cox Airparts provided during the overhaul. They were able to figure out the power pack we had installed was the wrong part number and got the correct one built and sent to us.

Mike LaPlant

“Rick’s expertise of hydraulic systems is amazing. He thoroughly understands the systems and can explain their operation in understandable terms. He accurately diagnosed a long-term problem I have been having in the gear system based on my explanation and findings. Rick’s accurate diagnosis saved me time and money chasing symptoms. I’m super happy with his service.”

Dave N.