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privateed12341234

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If a older model Bonanza in need of a new engine was fitted with a larger horse engine from a different manufacturer, could this aircraft be re-registered as an experimental? does an experimental aircraft have weight restrictions? or passenger restrictions ?
 

Dana

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Absent a STC for the install, yes, it would have to be re-registered some form of experimental, probably R&D or exhibition. It's not something that you can just slap in an engine and go fly with the relative freedom of experimental-amateur built. The precise restrictions would depend on the operating limitations issued with the new experimental airworthiness certificate.
 

TFF

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It would have to go into experimental exhibition but that requires like DERs to sign off on the idea and yearly renewals to the FAA. It’s what airshow planes fly under.
R&D is going to have restrictions on where you can fly because it’s really a test aircraft. Either way will probably cost more than fixing the original. There are upgraded STC Bonanzas so what type of engine are you trying to swap?
 

privateed12341234

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Hello Dana and TFF
Thank you both for your information. Dana; Due to the current costs of older Baron's or similar, I started looking for alternative soultions for 5 adults with luggage, corss country and stumbled into this idea. Best regards
 

Pops

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Cessna 206 ?
Piper Cherokee 6?
 

imacfii

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Hwmilton New Zealand
Absent a STC for the install, yes, it would have to be re-registered some form of experimental, probably R&D or exhibition. It's not something that you can just slap in an engine and go fly with the relative freedom of experimental-amateur built. The precise restrictions would depend on the operating limitations issued with the new experimental airworthiness certificate.
We did a Bonanza S35 conversion some years ago in San Jose. I recall the engine was a Cont 0470, we replaced it with a Cont 520B2B turbo engine. Got it all hooked up, called the FSDO, for an inspection. We had a test plan all sorted out, monitor EGT's CHT's, TIT's, fuel flow etc for a period. The owner was a dentist who used to fly from San Jose to Santa Barbara for work 3 times a week. FAA came out, looked at the installation, reviewed the test program, said fly it for 4 weeks, monitor figures, report back. With one stroke of his pen he turned it into an Exp R&D Cert. 4 weeks later we reported back to FAA with the results of the test period. With another stroke of his pen, he turned back into a Certified airplane, the only one in the world with a 520B2B engine. It can be done, FAA was impressed with the installation and our attitude. Mind you, that was a few years ago
 
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Victor Bravo

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There's a Duke project for sale at my home airport. Don't get much faster or more XC capable than that. May be less money than the Baron to purchase because it needs a little love, but it's a whole lot of airplane if you have a mission that justifies it.
 

TFF

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In these price levels, get an Aerostar. Lycoming non geared engines. A Duke is such a cool plane, engines are oddballs that make it expensive if you get a bad one. More than a regular 6 Lycoming. There is a twin turbine one that comes to visit; talk about hot rod.

The FAA will not sign stuff like that anymore. I asked what a non DER rout for something and I got the answer from my FSDO three years. This was much simpler. I had one mod signed by a DER. It took four years to find one who would sign. Too small a project for most. You think it’s hard to get an A&P to sign off a homebuilt.
 

Turd Ferguson

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Upper midwest in a house
If a older model Bonanza in need of a new engine was fitted with a larger horse engine from a different manufacturer, could this aircraft be re-registered as an experimental? does an experimental aircraft have weight restrictions? or passenger restrictions ?
Unfortunately, the FAA is not going to give you an experimental certificate of unlimited duration just to get around the regs.
 

Dan Thomas

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May be less money than the Baron to purchase because it needs a little love...
"Love" is spelled with multiple $. I've learned that over and over again. Everything I build or restore costs me at least double what I had figured would be the max, and took four times as long. Other people find the same thing. I've seen $30K Cessnas turn into $100K Cessnas just to get them cleaned up and airworthy again.

I just finished the restoration of an old Springbok aluminum 16' boat with a 70 hp Johnson, a retirement project, and have spent already at least 2.5 times more than I figured and then I found that the engine had scored cylinders and the compression was down. Two-stokes hate that and won't idle. So now the cost will go to 3.5 or more times what I figured, with a used outboard. And it's already taken double the time. So much fun!
 
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