If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below. |
|
|
|
Thread Tools | Display Modes |
#11
|
|||
|
|||
"John Galban" wrote in message m... What does a single impulse coupling have to do with liability and the risk of injury? Most of the singles in the fleet have a single impulse coupling on the left mag only. And because impulse couplings fail. What's not there can't fail. That argues for only having one (as opposed to the OP who wants two). It's really a safety feature? That's a new one on me. As far as I know, the impulse coupling retards the spark to enable the engine to start at low rpm. It also gives the mag a quick "spin" to increase the power of the spark. If you have no coupling, you get no start (unless the plane is equipped with a "shower of sparks" system). You don't even have to have an impulse coupling, the coupling just gives you a stronger spark (since the mags are pretty weak even when turning at full speed). You may need this if you've got less than optiumum conditions (like small amounts of plug foulilng). |
#12
|
|||
|
|||
Peter Dohm wrote: I am sure that there are airplanes still in service that have engine(s) with impulse coupling one only one of two magnetos; Yep. For example, a brand new Maule MX-7-160. George Patterson To a pilot, altitude is like money - it is possible that having too much could prove embarassing, but having too little is always fatal. |
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Considerations for joining flying club | Marty Ross | General Aviation | 17 | September 16th 04 10:54 AM |
Northern NJ Flying Club Accepting New Members | Andrew Gideon | Aviation Marketplace | 1 | June 12th 04 03:03 AM |
Northern NJ Flying Club Accepting New Members | Andrew Gideon | General Aviation | 0 | June 12th 04 02:14 AM |
Ultralight Club Bylaws - Warning Long Post | MrHabilis | Home Built | 0 | June 11th 04 05:07 PM |
Chuck Yeager to help flying club in Germany celebrate its 50th, By Lisa Horn, Stars and Stripes | Otis Willie | Military Aviation | 0 | June 9th 04 09:25 PM |