Guitarmaster Posted February 25, 2017 Report Posted February 25, 2017 Thinking about changing to this engine . 36 Cylinder Lycoming. 5000hp. What you think? STC or 337? Sent from my XT1585 using Tapatalk 2 Quote
kortopates Posted February 25, 2017 Report Posted February 25, 2017 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. 1 Quote
Hank Posted February 25, 2017 Report Posted February 25, 2017 I think you're trying to make Clarence jealous . . . . All of those cylinders, all of that fine plating . . . . . 2 Quote
Guitarmaster Posted February 25, 2017 Author Report Posted February 25, 2017 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 2 Quote
Guitarmaster Posted February 25, 2017 Author Report Posted February 25, 2017 When was that thing made? https://en.m.wikipedia.org/wiki/Lycoming_XR-7755Sent from my XT1585 using Tapatalk 1 Quote
Guitarmaster Posted February 25, 2017 Author Report Posted February 25, 2017 When was that thing made? 1944Sent from my XT1585 using Tapatalk 1 Quote
rbridges Posted February 25, 2017 Report Posted February 25, 2017 How long will your 52 gallon tanks run it? Quote
Hank Posted February 25, 2017 Report Posted February 25, 2017 53 minutes ago, rbridges said: How long will your 52 gallon tanks run it? Not long enough to warm it up . . . . 2 Quote
Guitarmaster Posted February 25, 2017 Author Report Posted February 25, 2017 How long will your 52 gallon tanks run it? 64 gallons thank you very much! Sent from my XT1585 using Tapatalk Quote
RLCarter Posted February 25, 2017 Report Posted February 25, 2017 64 gal should get you around the patch once........ 1 Quote
Andy95W Posted February 25, 2017 Report Posted February 25, 2017 4 hours ago, Guitarmaster said: What you think? STC or 337? Minor alteration. Simple logbook entry. 5 Quote
aviatoreb Posted February 25, 2017 Report Posted February 25, 2017 How much does an overhaul cost? 1 Quote
Hank Posted February 25, 2017 Report Posted February 25, 2017 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 . . . . 1 Quote
DAVIDWH Posted February 25, 2017 Report Posted February 25, 2017 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. 1 Quote
Guest Posted February 25, 2017 Report Posted February 25, 2017 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 Quote
aviatoreb Posted February 26, 2017 Report Posted February 26, 2017 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? 1 Quote
Guitarmaster Posted February 26, 2017 Author Report Posted February 26, 2017 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?Sent from my XT1585 using Tapatalk Quote
aviatoreb Posted February 26, 2017 Report Posted February 26, 2017 6 minutes ago, Guitarmaster said: Like this? Sent from my XT1585 using Tapatalk Sort of but a little bigger. 1 Quote
N201MKTurbo Posted February 26, 2017 Report Posted February 26, 2017 6 hours ago, aviatoreb said: How much does an overhaul cost? It's about 30K for a 4 cylinder so it would be about 180k. Quote
aviatoreb Posted February 26, 2017 Report Posted February 26, 2017 1 hour ago, N201MKTurbo said: It's about 30K for a 4 cylinder so it would be about 180k. No price break for the bulk buy? Quote
Guest Posted February 26, 2017 Report Posted February 26, 2017 2 hours ago, Guitarmaster said: Like this? 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 Quote
xcrmckenna Posted February 26, 2017 Report Posted February 26, 2017 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 1 Quote
mike28w Posted February 26, 2017 Report Posted February 26, 2017 Changing out one Lycoming for another......shouldn't be a problem . 1 Quote
1964-M20E Posted February 27, 2017 Report Posted February 27, 2017 well you can always take off verticaly to 30k feet (64 gallons of fuel) jettison the engine and glide to your destination. 2 Quote
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