JDWilliams
Registered User
Need some clarification if possible. Here’s the current recipe: PA12-150 just back from Ly-Con, 26” Goodyears on 3” extended gear, Stoddard/Univair engine mount, Borer prop. Installation instructions I have for the Stoddard mount specify Sensenich M74DM prop. STC SA02179AK from Dan’s covers install of McCauley 1A175-GM8242 “Borer” prop on PA12-150. The airplane is fully STC’d for all mods (all 23 of them) - want to keep it that way.
Question1: Is it kosher to install the Borer when the engine is hung on a Stoddard mount as long as I’ve got Dan’s Borer STC?
Question2: The Stoddard mount installation instructions also specify a lot of other details including exhaust type and oil cooler. So I have the same question about using a Sutton exhaust and rear baffle mounted oil cooler STC with a Stoddard mount. Legal for certified?
I’ve looked at the Crosswinds STOL mount STC kit. I happen to have an O320-A3B - a version not included in that STC (far as I can tell).
Would like to avoid field approval process but will do it if that’s what it takes to stay “certified.”
Thanks in advance for any help.
Question1: Is it kosher to install the Borer when the engine is hung on a Stoddard mount as long as I’ve got Dan’s Borer STC?
Question2: The Stoddard mount installation instructions also specify a lot of other details including exhaust type and oil cooler. So I have the same question about using a Sutton exhaust and rear baffle mounted oil cooler STC with a Stoddard mount. Legal for certified?
I’ve looked at the Crosswinds STOL mount STC kit. I happen to have an O320-A3B - a version not included in that STC (far as I can tell).
Would like to avoid field approval process but will do it if that’s what it takes to stay “certified.”
Thanks in advance for any help.