Homemade switch for 744 MCP

[Guest deltaflight]

Those are not AML's......They are Jayel's.

[Guest mbessler]

>Those are not AML's......>>They are Jayel's.I've actually found a picture on a.net with this mentioned panel. I didn't see any AML22s either... thanks for the Jay-El tip. :-) I have to check their switches... I guess in order to be used in cockpits (or even aircraft in general) the switches have to be "certified" which probably means they have to adhere to some MIL-STDManuel

[Garys]

You sure? Ive pressed those buttons hundreds if not thousands of times and they looked and felt like honeywells to me and I know honeywells are certified. Never seen them out of the panel so could be wrong.Anyway heres a picture taken from the honeywell website which shows switches used on each area the aircraft.Heres the url which you can go and take a look throughhttp://content.honeywell.com/sensing/solut...rkets/aviation/Gaz

[Guest mbessler]

Hi Gaz.>You sure? Ive pressed those buttons hundreds if not thousands>of times and they looked and felt like honeywells to me and I>know honeywells are certified. Never seen them out of the>panel so could be wrong.I don't know how Honeywells, Jay-Els, or Korrys feel as I've never seen a real one and haven't been in a real cockpit yet. :-(>Anyway heres a picture taken from the honeywell website which>shows switches used on each area the aircraft.It seems that they make some switches that are actually used in cockpits. All datasheets I've looked at, mentioned neither avaition/aerospace nor MIL-STD with those of Korry and Jay-El did.It would seem logical that Honeywell makes switches for cockpits since they make many other stuff found in cockpits.Manuel

[Garys]

Hi manuel,The Jay-EL, Korry, and also Eaton switches have a nice smooth positive feel with a loud audible click when pressed.The closest to those for us are the AML switches which feel very similar. If you can find a small pushbutton switch that has a very similar feel to the AML then you will have a switch that not only looks like them but feels like them too :) Gaz

[Garys]

Just adding to this great topic of switches, take at look over at dakenskyshttp://www.dakenskys.com/home.htmThese new Korry switch replicas are unbeatable at that price. This hobby just keeps getting better and better :)Gaz

[Guest mbessler]

Hi Gaz,>The Jay-EL, Korry, and also Eaton switches have a nice smooth>positive feel with a loud audible click when pressed.The>closest to those for us are the AML switches which feel very>similar. If you can find a small pushbutton switch that has a>very similar feel to the AML then you will have a switch that>not only looks like them but feels like them too :) Interesting. I wondered about whether those switches having a click-sound. I makes sense from a human-factors standpoint.Interestinly enough, the korry and the Jay-El datasheets specify the actuation forces for their switches. the jay-el even have the amout of travel before and after actuation/click specified. :-) Now all you've got to do is find a cheap, easily available microswitch with similar properties to the real ones for to mount them behind the hotglue part.You may be laughing, but I actually used a kitchen scale to measure the actuation forces req'd for some of the switches I had laying around :-) :-)Manuel