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Old 12-25-2009, 11:31 PM
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35% Trueworthy Pitts M12

After seeing these things on the internet and a few in person, I'm finally the proud ownner of my own 35% Trueworthy Pitts. I feel like a kid in a candy store.

I've already got 5955's that I'm planning to put in the wings, and 1 on each elevator half. However, I need to know what you think for the elevators and what to do on the rudder. This is my first step up plane from a 50cc EF-Yak so I don't know anything about ganging servos, rudder trays, etc..

I plan to run 2 - A123 2300 packs and a seperate 2300 for ignition. Control via fan cooled 6014 Fasst rx with a possible powerbuss if you guys tell me I need one.

Also, the plane weighs in at 36 lbs plus the drag of a bipe. Most people installed a DA-150 and said the power was crazy. The DA-100 installs fly "scale" according to most. However, I'm stuck on the motor choice. I can go with a DA-150 like most and how crazy power for good times (I really don't 3D at all) or step down to DA-100 and might be a little "slim" on the power band.

However, I'm really looking at the new DA-170 and thinking it's lighter, more powerful, and can go into another plane (maybe one of Bob's 41% Pitts) later. I'm looking for some opinions and insight so I don't ball it up on it's first flight.

Here's some pics of it!
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Old 12-26-2009, 12:43 AM
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Re: 35% Trueworthy Pitts M12

Hey kev.. If yours is set up like mine there should be 2-4 rudder servo ganged up on the tail.. I just plan on getting the linkages as close as I can and mixing the rest on the 12fg.. You know they can do it!! If you dont mind I might post some setup pictures of my pitts once I ever get it finished.. Shouldn't take long as it is just a used plane. I just been tied up with the eg raven.. Its ready to go though so the pitts is next.. I and Kevin here would love some details from some of you guys that have flown these.. Myself I have been spoild by ,"monoplanes".. Especially the ef110 yak.. Yes I have in mind the drag of a biplane..
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Old 12-27-2009, 12:11 AM
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Re: 35% Trueworthy Pitts M12

Go for the 150 or 170, you won't regret it. I had a 120 in my 30 pound Ultimate and it flew it really well. I needed the engine for another project and have since bought a 160 for the Ultimate. Bipes suck the power up big time. The pitts is even worse with the big round cowl.
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Old 12-27-2009, 12:34 AM
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Re: 35% Trueworthy Pitts M12

Thanks for the suggestion. How about servos in a bipe for rudder / elevators?
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Old 12-27-2009, 03:18 AM
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Re: 35% Trueworthy Pitts M12

Hi Kevin
I have the 41% powered with a DA150 and pipes but mine is a lightweight relatively speaking, I have 2 8611 per aileron , One 8611 per elevator half and that's plenty, a Seiko on the rudder and that's an overkill, 2 8711 or equivalent would have been fine, so in your case, I would say, One 5955 servo per aileron, One 5955 per elevator half and 2 on the rudder that should be plenty, as for the motor, it depends on your type of flying, me personally I would go with at least a 150, good luck.
Elie

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Originally Posted by cadconversions View Post
After seeing these things on the internet and a few in person, I'm finally the proud ownner of my own 35% Trueworthy Pitts. I feel like a kid in a candy store.

I've already got 5955's that I'm planning to put in the wings, and 1 on each elevator half. However, I need to know what you think for the elevators and what to do on the rudder. This is my first step up plane from a 50cc EF-Yak so I don't know anything about ganging servos, rudder trays, etc..

I plan to run 2 - A123 2300 packs and a seperate 2300 for ignition. Control via fan cooled 6014 Fasst rx with a possible powerbuss if you guys tell me I need one.

Also, the plane weighs in at 36 lbs plus the drag of a bipe. Most people installed a DA-150 and said the power was crazy. The DA-100 installs fly "scale" according to most. However, I'm stuck on the motor choice. I can go with a DA-150 like most and how crazy power for good times (I really don't 3D at all) or step down to DA-100 and might be a little "slim" on the power band.

However, I'm really looking at the new DA-170 and thinking it's lighter, more powerful, and can go into another plane (maybe one of Bob's 41% Pitts) later. I'm looking for some opinions and insight so I don't ball it up on it's first flight.

Here's some pics of it!
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Old 12-27-2009, 05:36 AM
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Re: 35% Trueworthy Pitts M12

Go with a 150 with standard "mufflers", Or you can think about the new 3W 110, that thing really screams, might be just the ticket!

Tom
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Old 12-27-2009, 08:23 AM
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Re: 35% Trueworthy Pitts M12

Thanks Snap and Tom. I'm really leaning hard towards the 150 size just for future use. I find it hard to think about staying at a 100cc size when stepping up to a 150 isn't that much more money but it certainly is more plane.

I think I'll for sure go with a 3 blade prop for the coolness factor, a little quieter is nice, and it might take a little edge off the power. I'm no 3D guy but I have a blast flying way overpowered planes as long as I can get them propped right so they will slow down. Don't think I'll have that problem with a bipe.
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Old 12-29-2009, 11:01 AM
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Re: 35% Trueworthy Pitts M12

You can get some good deals on a GOOD USED 150. Keep the stock mufflers and go with it. Plenty of power for this plane and I think you will see some Kits coming out specifically for these engines in the future, so it wont be a bench engine due to the 170's or 200's.
Although a 170 sounds great it would be way overkill for the airplane and I think for the fun factor just to much $$$$. I have seen a 150 fly the plane and it would make a wise choice.
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Old 12-29-2009, 11:53 AM
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Re: 35% Trueworthy Pitts M12

Kevin, you might consider the BME 150. I don't think they are much heavier than the DA 100 but they do have some grunt. Whatever brand you consider I don't think I would stick a 100 on it. I know some guys were sticking the BME 150 in their 35% monoplanes and having a blast with that additional power.
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Old 12-30-2009, 12:08 AM
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Re: 35% Trueworthy Pitts M12

Thanks, I'll check the BME's out but I'm a pretty big DA loyalist...yet I know there are other motors that every bit as good.
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Old 05-01-2010, 09:42 AM
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Re: 35% Trueworthy Pitts M12

I would like to see some pic's of Rudder/Elev servo setups for this plane as I now own one
I plan on putting a 3W 150 on it and was wondering where would be the best place to put these servos as for CG purposes. Any info would be greatly appreciated.

Thank You,
Duane
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Old 10-24-2010, 09:14 AM
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Re: 35% Trueworthy Pitts M12

Hey kevin did you get yours flying yet? I have the old blue and yellow one completey stripped down now and I have been slowly cleaning things up getting ready for a recover. I hope to have it done in the spring, DA 150 and since I have the front end off I might make it cannister ready, just havent decided yet. Also I am thinking on new ailerons for the wings since I have them stripped also, and all throw availability is being increased as I go along. I did alot of cutting to thin the airframe but laughed at how little it saved weight wise, was fun though.
Scott
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Old 10-24-2010, 07:09 PM
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Re: 35% Trueworthy Pitts M12

Quote:
Originally Posted by vsnap View Post
Hey kevin did you get yours flying yet? I have the old blue and yellow one completey stripped down now and I have been slowly cleaning things up getting ready for a recover. I hope to have it done in the spring, DA 150 and since I have the front end off I might make it cannister ready, just havent decided yet. Also I am thinking on new ailerons for the wings since I have them stripped also, and all throw availability is being increased as I go along. I did alot of cutting to thin the airframe but laughed at how little it saved weight wise, was fun though.
Scott

Hey Scott, I sold it to Taildragger (Duane) on here and just talked to him the other day. I think he's plan is to get it ready for this coming season. After getting it together - the thought of flying something that big and expensive kicked me in the tail...plus I was eying a few high dollar pistols so I put the money into cold hard steel and lead.

I just got back into flying on a consistent basis a few months ago after shutting down my main business. Still have my Carl Goldberg Pitts M12 with a MVVS 26 so I can at least fulfill my pitts addiction and my Aerolock 36" wingspan electric pitts.

You have my buddies Pitts that use to belong to Kregg correct?
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Old 10-25-2010, 07:33 AM
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Re: 35% Trueworthy Pitts M12

Kevin,

Yes I do. I picked it up last summer, and the more I looked at it the more it needed some TLC. Soooooo as the saying goes one thing led to another etc, etc, etc.. Just yesterday I ended up stripping half the sheeting off the fuse to replace some repair work and since it was built at a time that you needed multiple switches (5) it had alot of holes to fill. I wasnt planning on going this far but I always create more work then needed it seems.
Have fun with the cold hard steel and red hot lead, and glad to hear your back flying.

Scott
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Old 10-25-2010, 12:43 PM
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Re: 35% Trueworthy Pitts M12

With that ugly as sin (Sorry) scale covering that Kregg decided on it needed to be recovered! HAHA - just having fun with you but that South Africa scheme was never my favorite.... You'll have a great looking bipe when you finish. Now that I have trashed the scheme that was on it - what is your thoughts on the new scheme so far?
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