M20S Driver Posted March 9, 2016 Report Posted March 9, 2016 Hello, I was wondering if anyone could shed some light on what the function of "Bungee Assy Leg Retract PN 560213 501" is on the LDG gear?. Is it only a spring to help extension and retraction or is it also for dampening the motion? I could not find anything in the service manual or parts catalog. Driver Quote
carusoam Posted March 9, 2016 Report Posted March 9, 2016 I think Alan had a photo of a bungee that came out of an E... See if this helps... No idea if it's even similar, or how it works. See the spring mounted on the rod... Best regards, -a- 1 Quote
Seth Posted March 9, 2016 Report Posted March 9, 2016 I know when I replaced a bungee in my former 1967 F model with a Johnson Bar, the manual retraction went from a workout to smooth as butter. I know that did not answer your question, but if you have any hesitation or catching and thus man powering your manual gear system, that's not how it was designed to work. It's supposed to be a fluid smooth motion without too much resistance. -Seth 1 Quote
M20S Driver Posted March 10, 2016 Author Report Posted March 10, 2016 On 3/9/2016 at 6:48 PM, carusoam said: I think Alan had a photo of a bungee that came out of an E... See if this helps... No idea if it's even similar, or how it works. See the spring mounted on the rod... Best regards, -a- The main bungee that Alan has may be functionally similar to mine but they look different. It seems that the bungee only assists in the retraction or perhaps helping to minimize the gravity force-- only a guess based on Seth's comment above Quote
StinkBug Posted March 10, 2016 Report Posted March 10, 2016 It offsets the weight of the gear so that you (or the mechanism in an electric gear) aren't lifting all the weight. I played with my gear last time I had the plane on jacks and cycled it up and down from underneath a bunch of times to see how it worked. Everything is carefully balanced so you could stop the gear in any position and it'll just stay there. The first time I did it I had already removed the wheels and it was a real workout to get down again, without the weight to help me fight those springs! 2 Quote
carusoam Posted March 10, 2016 Report Posted March 10, 2016 Dallas, Any intention of adding A&P to your long and getting longer list of aviation accomplishments? Thanks for sharing the spring bungee details, that is good to know. Best regards, -a- Quote
StinkBug Posted March 13, 2016 Report Posted March 13, 2016 I'd love to, but I honestly don't know much about what it entails. I have no doubt that the work would come fairly easy to me since I've spent most of my life working on other vehicles, but I know it is something that takes a fair amount of time. Maybe if I end up getting a job flying that has some time off. 1 Quote
Kcor Posted January 9 Report Posted January 9 Hello, I'm looking for Landing Gear Bungee for Mooney M20 Part #560213-501. Please let me know if anyone has one available. Quote
A64Pilot Posted January 11 Report Posted January 11 On 3/13/2016 at 4:38 AM, StinkBug said: I'd love to, but I honestly don't know much about what it entails. I have no doubt that the work would come fairly easy to me since I've spent most of my life working on other vehicles, but I know it is something that takes a fair amount of time. Maybe if I end up getting a job flying that has some time off. In truth it’s actually highly variable based on the FSDO inspector, I’ve even seen it almost rewarded to someone who had known and worked with an inspector for quite awhile. https://www.faa.gov/mechanics/become/experience By rewarded I mean the authorization to test, everyone still has to take the tests. Even Military pilots have to take a written, in my case it was a 50 question test that anyone could pass, and then I became a Commercial / Instrument pilot, but a Helicopter pilot, but being rated in a different category made getting my fixed wing easier, only had to have 100 hours in an airplane to get Commercial. People that I have seen that were successful had “job books” detailing what work they had accomplished with tail numbers, dates etc over the years, and I believe an IA recommended them. Don’t know if the IA part was required but I think it helps. In my opinion if for example you have assisted in Annuals, oil changes etc over the years, sit down and make that job book, especially if your maintenance logbooks support it, and I assume your IA will attest to your experience and recommend you. If at first you don’t succeed don’t quit, keep at it, it took several trips to the FSDO for me to get my piece of paper that allowed me to test based on Military experience as I didn’t fit the mold as in I was still active duty etc., but I wore them down. It may be their first answer is no, because honestly that’s the least amount of work for them, not all Government employees are that way but some are. Quote
Shadrach Posted January 11 Report Posted January 11 On 1/9/2024 at 2:35 PM, Kcor said: Hello, I'm looking for Landing Gear Bungee for Mooney M20 Part #560213-501. Please let me know if anyone has one available. Dawson has one. Better get it while it's hot... https://aircraftpartsandsalvage.com/aircraft-parts/airframe/general-airframe/landing-gear/mooney-ldg-retract-assist-bungee-assy/ Quote
MikeOH Posted January 12 Report Posted January 12 3 hours ago, Shadrach said: Dawson has one. Better get it while it's hot... https://aircraftpartsandsalvage.com/aircraft-parts/airframe/general-airframe/landing-gear/mooney-ldg-retract-assist-bungee-assy/ Shows 'out of stock', now! 1 Quote
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