Experimental Engine

A am near applying for an airworthiness on my project and
need to specify engine model. For many registered experimentals
I see AMA/EXPR as engine manufacturer and UNKNOWN ENG for model
even though the engine is standard aircraft engine.

Is it advisable to use that declaration? I use an electronic
ignition and non factory fuel system. So it is not a certified
engine.

------------------------------------------
SQ2000 canard project: www.abri.com/sq2000

On 26 Nov 2003 13:51:09 -0800, (Paul Lee) wrote:

A am near applying for an airworthiness on my project and
need to specify engine model. For many registered experimentals
I see AMA/EXPR as engine manufacturer and UNKNOWN ENG for model
even though the engine is standard aircraft engine.

Is it advisable to use that declaration? I use an electronic
ignition and non factory fuel system. So it is not a certified
engine.

I think I would. It eliminates any problems later. Later on, if the
registration database says you've got a Lycoming and an FAA guy sees
something non-standard on it, he may claim you did the change subsequent to
receiving your airworthiness certificate and that you're in violation for
not repeating your Phase 1 test period.

If you list it as a Lycontinental, you also may be subject to the AD
notices. However, if you *don't*, you may not receive AD or service
notices that may affect your engine.

Offhand, though, my attitude is to give the Feds as little information as
they'll be happy with.

Ron Wanttaja

Ron,

What about the prop make/model. I have an IVO prop, which is
experimental anyway. Should it also be designated AMA/EXPR
- UNKNOWN? Or does that matter so much?

Ron Wanttaja wrote in message . ..
On 26 Nov 2003 13:51:09 -0800, (Paul Lee) wrote:

A am near applying for an airworthiness on my project and
need to specify engine model. For many registered experimentals
I see AMA/EXPR as engine manufacturer and UNKNOWN ENG for model
even though the engine is standard aircraft engine.

Is it advisable to use that declaration? I use an electronic
ignition and non factory fuel system. So it is not a certified
engine.

I think I would. It eliminates any problems later. Later on, if the
registration database says you've got a Lycoming and an FAA guy sees
something non-standard on it, he may claim you did the change subsequent to
receiving your airworthiness certificate and that you're in violation for
not repeating your Phase 1 test period.

If you list it as a Lycontinental, you also may be subject to the AD
notices. However, if you *don't*, you may not receive AD or service
notices that may affect your engine.

Offhand, though, my attitude is to give the Feds as little information as
they'll be happy with.

Ron Wanttaja

On 27 Nov 2003 00:38:04 -0800, (Paul Lee) wrote:

What about the prop make/model. I have an IVO prop, which is
experimental anyway. Should it also be designated AMA/EXPR
- UNKNOWN? Or does that matter so much?

The FAA Registration databases I downloaded don't seem to have propeller
data in them. The FAA probably has a record of it, but it's not reflected
in the registration files I have.

I'm actually a bit conflicted here. I'd *love* for as much accurate
information as possible be contained on the FAA database to assist in my
varied analyses. I'd *love* for the registration listing for your plane to
be as detailed as possible, and that "Lycoming" be listed as the engine
type even if some of your accessories are different.

But...I'm also of from the "Never give an bureaucrat an even break" school.
If it is not *required* for detail to be entered, I wouldn't enter it.

Ron Wanttaja

Ron Wanttaja wrote in message . ..
On 27 Nov 2003 00:38:04 -0800, (Paul Lee) wrote:

What about the prop make/model. I have an IVO prop, which is
experimental anyway. Should it also be designated AMA/EXPR
- UNKNOWN? Or does that matter so much?

The FAA Registration databases I downloaded don't seem to have propeller
data in them. The FAA probably has a record of it, but it's not reflected
in the registration files I have.


Its in box 9 and 10 of the "Application for Airworthiness Certificate".

Paul
-------------------------------------------------
SQ2000 canard project: www.abri.com/sq2000

On 26 Nov 2003, Paul Lee wrote:

I see AMA/EXPR as engine manufacturer and UNKNOWN ENG for model
even though the engine is standard aircraft engine.


When I filled out the paperwork, I always put the motor as a Mazda 13b.
However, when they post the data, it is "unknown".

I think that they don't know or care.

George Graham
RX-7 Powered Graham-EZ, N4449E
Homepage http://bfn.org/~ca266

On 26 Nov 2003 13:51:09 -0800, (Paul Lee)
wrote:

A am near applying for an airworthiness on my project and
need to specify engine model. For many registered experimentals
I see AMA/EXPR as engine manufacturer and UNKNOWN ENG for model
even though the engine is standard aircraft engine.

Is it advisable to use that declaration? I use an electronic
ignition and non factory fuel system. So it is not a certified
engine.

------------------------------------------
SQ2000 canard project: www.abri.com/sq2000

Paul,

To make it an experimental engine you will have to remove the original
data plate. Actually, you can just flip it over and stamp it with
something like "Paul's Experimental Engine, Seral Number XXXX". From
that time on, it will be an experimental engine. In the event that
you sell the engine, (or install it on a certificated airplane)
conformity with the original type certificate will have to be
established by someone before it can be returned to a non-experimental
status.

O-ring Seals

OK. Thanks for letting me know. Done.....

------------------------------------------
SQ2000 canard project: www.abri.com/sq2000

(O-ring Seals) wrote in message ...
On 26 Nov 2003 13:51:09 -0800, (Paul Lee)
wrote:
Paul,

To make it an experimental engine you will have to remove the original
data plate. Actually, you can just flip it over and stamp it with
something like "Paul's Experimental Engine, Seral Number XXXX". From
that time on, it will be an experimental engine. In the event that
you sell the engine, (or install it on a certificated airplane)
conformity with the original type certificate will have to be
established by someone before it can be returned to a non-experimental
status.

O-ring Seals