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Engine upgrade. STC or 337?

Guitarmaster

By Guitarmaster
in General Mooney Talk

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Guitarmaster Veteran

Guitarmaster

Posted
Posted

Thinking about changing to this engine .

 

ccda6992b72606b65e6f5d77c4bb74f0.jpg

 

36 Cylinder Lycoming. 5000hp.

 

What you think? STC or 337?

 

Sent from my XT1585 using Tapatalk

 

 

  • Like 2
kortopates Grand Master

kortopates

Posted
Posted
1 minute ago, Guitarmaster said:

 

Thinking about changing to this engine .

 

36 Cylinder Lycoming. 5000hp.

 

What you think? STC or 337?

 

Sent from my XT1585 using Tapatalk

 

 

 

Neither, Experimental for research and development purposes.

Shouldn't be a problem either since I doubt an F model could possibly hold enough fuel to allow those 36 cylinders to come up to full power long enough to get airborne.

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Hank Grand Master

Hank

Posted
Posted

I think you're trying to make Clarence jealous . . . . All of those cylinders, all of that fine plating . . . . .

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Guitarmaster Veteran

Guitarmaster

Posted
  • Author
Posted

Nine banks of four cylinders each.
Never saw service on an airframe as turbines eclipsed it.
Now its just 36 cylinders of pure awesomeness!

Sent from my XT1585 using Tapatalk

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Hank Grand Master

Hank

Posted
Posted
53 minutes ago, rbridges said:

How long will your 52 gallon tanks run it?

Not long enough to warm it up . . . .

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Hank Grand Master

Hank

Posted
Posted
4 hours ago, aviatoreb said:

How much does an overhaul cost?

More even than your own, including that nice 4-blade prop. If ya gotta ask . . . . 

  • Like 1
DAVIDWH Proficient

DAVIDWH

Posted
Posted

Hate to pour cold water on a hot topic, that being said,

you may need a bit of aft ballast to solve those pesky cg issues.

With the io550 in the m20R, Mooney partially solved the forward cg issue by adding another battery aft.

Suspect in your case you might consider this method of solving your forward cg problems.

Additionally, if you need a bit more thrust on takeoff, the Scimitar prop will help immensely.

  • Like 1
Guest

Guest

Posted
Posted

As with all mods, they tend to snowball.  As well as a new prop, and battery relocation, you'll need to install a larger nose wheel, an a new larger wheel well, and so on.

Clarence

aviatoreb Grand Master

aviatoreb

Posted
Posted

I know...

i figure if you extend the tail back about 75 ft and then put a few batteries back there and the Cg problem will be fixed.

 

then make a tail dragged conversion and really long main gear to lift the nose up so you can put a real big prop on the nose.

 

there - problem solved.  Now what's for lunch?

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Guitarmaster Veteran

Guitarmaster

Posted
  • Author
Posted
Hate to pour cold water on a hot topic, that being said,
you may need a bit of aft ballast to solve those pesky cg issues.
With the io550 in the m20R, Mooney partially solved the forward cg issue by adding another battery aft.
Suspect in your case you might consider this method of solving your forward cg problems.
Additionally, if you need a bit more thrust on takeoff, the Scimitar prop will help immensely.


Like this?

058fc4893d3f42a511dba1008a4f5c4b.jpg

Sent from my XT1585 using Tapatalk

Guest

Guest

Posted
Posted
2 hours ago, Guitarmaster said:

 


Like this?

058fc4893d3f42a511dba1008a4f5c4b.jpg

Sent from my XT1585 using Tapatalk
 

 

I think that you'll need two of them, the engine appears to have two concentric prop shafts, which is good news as you won't need to install rudder trim.

Clarence

xcrmckenna Veteran

xcrmckenna

Posted
Posted
Hate to pour cold water on a hot topic, that being said,
you may need a bit of aft ballast to solve those pesky cg issues.
With the io550 in the m20R, Mooney partially solved the forward cg issue by adding another battery aft.
Suspect in your case you might consider this method of solving your forward cg problems.
Additionally, if you need a bit more thrust on takeoff, the Scimitar prop will help immensely.


The best way to cure your cg problem is install the skymaster mod to your Mooney and put a reversed engine in the back:)


Sent from my iPhone using Tapatalk
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