GP Super Stearman
09-26-2008, 09:06 AM
#1276
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RE: GP Super Stearman
ORIGINAL: Shubova
Hi,
An unlucky event turned into good luck for me. My thinking was a 150 Saito would be more then enough power. I bought a used Saito 150 about 2 years ago but never used it. I put it in the Stearman but when I went to start it, it gave me problems. I just had acquired a 180 on a great deal so I changed out the 150 for the 180 and I love it. It does everything I want and more. It has power to spare. It's not fully aerobatic but it does things I didn’t expect. Of course I had the 150 fixed and plan on using on another plane.
With the 125 you should get a good scale flight but you end up adding some much weight to the plane I don’t know if it will do anything else.
Dave Brown or True Turn should have a shaft nut and washer that is close. I ended up using the washer and nut that came with the engine; and to that I added a True Turn shaft washer and adapter so the spinner fits nicely.
Some people cut the shaft down to get a fit but to me that degrades the integrity of the motor. It’s up to you if you want to do that.
One more thing! Make sure you check the incidence on the upper and lower wings, and the horizontal stabilizer. They should all be “0†degrees to each other. My upper wing ended up being 4 ½ degrees positive. Needless to say I had to input every bit of down elevator that I had and it still wanted to climb. Later through my investigation of the problem I found that the incidence varies on this plane from negative to “0†to positive. The crew that built mine must have done a lot of celebrating the day before. So beware!
I also moved the CG forward about 1/4 inch. Like I said it flys great now.
I hope this helps,
Shubova
[8D]
Hi,
An unlucky event turned into good luck for me. My thinking was a 150 Saito would be more then enough power. I bought a used Saito 150 about 2 years ago but never used it. I put it in the Stearman but when I went to start it, it gave me problems. I just had acquired a 180 on a great deal so I changed out the 150 for the 180 and I love it. It does everything I want and more. It has power to spare. It's not fully aerobatic but it does things I didn’t expect. Of course I had the 150 fixed and plan on using on another plane.
With the 125 you should get a good scale flight but you end up adding some much weight to the plane I don’t know if it will do anything else.
Dave Brown or True Turn should have a shaft nut and washer that is close. I ended up using the washer and nut that came with the engine; and to that I added a True Turn shaft washer and adapter so the spinner fits nicely.
Some people cut the shaft down to get a fit but to me that degrades the integrity of the motor. It’s up to you if you want to do that.
One more thing! Make sure you check the incidence on the upper and lower wings, and the horizontal stabilizer. They should all be “0†degrees to each other. My upper wing ended up being 4 ½ degrees positive. Needless to say I had to input every bit of down elevator that I had and it still wanted to climb. Later through my investigation of the problem I found that the incidence varies on this plane from negative to “0†to positive. The crew that built mine must have done a lot of celebrating the day before. So beware!
I also moved the CG forward about 1/4 inch. Like I said it flys great now.
I hope this helps,
Shubova
[8D]
09-26-2008, 09:48 AM
#1277
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RE: GP Super Stearman
Hey Bilge476,
Do you realize that on RCU, when you write in ALL CAPS, that is meant as yelling or that you are aggitated in some way. Just thought you might like to know.
R/C Foolish
Do you realize that on RCU, when you write in ALL CAPS, that is meant as yelling or that you are aggitated in some way. Just thought you might like to know.
R/C Foolish
09-26-2008, 12:50 PM
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RE: GP Super Stearman
ORIGINAL: BILGE476
DON'T BE FOOLISH MR FOOLISH, IF I HAD MORE POWER IT WOULD BE A 3-D'ER. REALY FLYS GREAT AT ABOUT 3/4 THROTEL IT LOOK AND ACTS VERY SCALE. I 'M SWINGING A 16-6 PROP AND EVERY ONE IS COMPLIMENTRY ABOUT THE SCALE PREFORMANCE, AT FULL THROTEL IT IS MUCH FASTER THAN A SCALE SHOULD BE.IT PREFORMS ALL STUNTS THAT A SCALE STEARMAN COULD DO. I'M NOT SURE I UNDESTAND ALL OF THIS POWER PROBLEM PEOPLE ARE HAVING, THE PLANE WAS SET UP FOR A 120. THIS IS NOT A ROCKET SHIP.ANYWAY THANKS BUT I COULD NOT BE HAPPIER. GOOD FLYING,BE SAFE B.R. MIKE
ORIGINAL: R/C Foolish
You might find that you are underpowered with that 125. I have a SAITO 150 in mine and wish I had put bigger.
R/C Foolish
You might find that you are underpowered with that 125. I have a SAITO 150 in mine and wish I had put bigger.
R/C Foolish
09-26-2008, 12:57 PM
#1279
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RE: GP Super Stearman
ORIGINAL: R/C Foolish
Hey Bilge476,
Do you realize that on RCU, when you write in ALL CAPS, that is meant as yelling or that you are aggitated in some way. Just thought you might like to know.
R/C Foolish
Hey Bilge476,
Do you realize that on RCU, when you write in ALL CAPS, that is meant as yelling or that you are aggitated in some way. Just thought you might like to know.
R/C Foolish
09-26-2008, 10:57 PM
#1281
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RE: GP Super Stearman
BILGE476
I understand what you are saying. I really wasn't trying to imply that you were inexperienced. Some times is hard to gage the level at which a person is at by the posts they leave. And I too will throw out a dumb sounding question just to hear the different responses. In this way I can judge if my thinking is correct. It seems like I learn something new about this hobby almost every day. I am defiantly hooked.[sm=tongue_smile.gif]
Recently I have been flying my Stearman and an Extra 260. As you can imagine they are both challenging in their way which leads to a very interesting day of flying. My next project it a Hanger 9 Piper Cub which I going to add pontoons to for a float fly that coming up next month.
I recently read somewhere that you know you are hooked on R/C planes when your farts start to smell like 15%. I my case it’s 15% and 20/20. [sm=spinnyeyes.gif]
Good Luck and Happy Flying!
Shubova
[8D]
I understand what you are saying. I really wasn't trying to imply that you were inexperienced. Some times is hard to gage the level at which a person is at by the posts they leave. And I too will throw out a dumb sounding question just to hear the different responses. In this way I can judge if my thinking is correct. It seems like I learn something new about this hobby almost every day. I am defiantly hooked.[sm=tongue_smile.gif]
Recently I have been flying my Stearman and an Extra 260. As you can imagine they are both challenging in their way which leads to a very interesting day of flying. My next project it a Hanger 9 Piper Cub which I going to add pontoons to for a float fly that coming up next month.
I recently read somewhere that you know you are hooked on R/C planes when your farts start to smell like 15%. I my case it’s 15% and 20/20. [sm=spinnyeyes.gif]
Good Luck and Happy Flying!
Shubova
[8D]
09-26-2008, 11:05 PM
#1282
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RE: GP Super Stearman
Thanks Foolish I never new that about ALL CAPS. For me all caps isn't much of an issue. My issue about some posts is that is seems like sometimes people don't really take the time to read what they write. I'm not saying that I am perfect but some post are so off in their grammer and spelling it's almost impossible to understand.[sm=confused.gif]
Happy Flying!
Shubova
[8D]
Happy Flying!
Shubova
[8D]
09-26-2008, 11:10 PM
#1283
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RE: GP Super Stearman
iflyfastashell
Well I guess you do!
Your are going to have quite a diplay if you ever wreck it.[sm=bananahead.gif]
What does that thing weigh?
Good Luck!
Shubova
[8D]
Well I guess you do!
Your are going to have quite a diplay if you ever wreck it.[sm=bananahead.gif]
What does that thing weigh?
Good Luck!
Shubova
[8D]
09-27-2008, 04:27 PM
#1284
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RE: GP Super Stearman
not sure but i am pretty good at shaving weight and it shouldnt come in any heavier than a zenoah 26 equiped plane. in the underground world of guys that flyfastashell like me this has been done with dl and da 50s with great success. the secret is its not scale far from it. only use the extra power upline and while performing manuvers that require the speed . its like having the ultimate sleeper hot rod. ihave no need or desire to blow the wings off of it. i have a wagstaff to that with. this is going to be a fun plane with plenty of nuts. ill post more tonight as i finish up the details. i have upgraded all the important stuff to z bends 4-40 and digital hi torque servos. pinned all the surfaces and strengthend all the weak points.
09-27-2008, 10:41 PM
#1285
RE: GP Super Stearman
I had a terrible, and probably lucky flight on my stearman today....
I recently swapped motors, and I was trying a different prop today, and it went lean and died on me. I haven't been flying it alot, and I haven't dead sticked it in a couple years.. i remember it usually glides pretty long and fast if its real calm, but comes down steep with a breeze. Mine is a bit heavy with a gas motor but flies great.. Well i was on one of the outlaying flight positions , not center field ..and the engine died.. I wasn't real high up ..60 feet maybe , I didn't really take my eyes off the plane to scan exactly, and unfortunately I didn't have a spotter. My first thought was I am too high to land north into a 4 mph wind, and too low to turn out and down wind and do a new approach, I possibly could have turned 180 degrees and landed down wind and probably went in the bean field.. But that required turning at the flight line and possibly stalling mid turn near everyone. So I decide to go north. On the end of our field is a double set of levees to contain a small creek on its route to the river. So I had to lose altitude without to much speed to either land going north, or bend it west at the end and roll up near the fence. I did some draggy right and left banks using just a tiny bit of aileron and rudder... but I just couldn't lose enough altitude and maintain a low enough speed. Finally I was at the end of the field and I thought oh no, I am going to be hauling butt when I roll into that fence. That wasn't the problem I had... the plane was about 20 feet off the field over the levees, as I turned to level off, there I am settling into the worst place possible. It caught the right wings in the tall grass and weeds hauled it down, a nasty smack sound and you could hear it rolling down in the 8-10 feet deep creek bed (dry now thankfully) Anyhow I get over there and the motor mounts broke off, taking the cowl with it. I must have about 8 holes and tears in the monocote, but I don't think it BROKE A SINGLE STICK on the plane !
That was a lucky ending, but I am still just sick, I don't know if I made the worst emergency decision, but I sure wish I had made a better one! I don't know if I had the nerve to use a little opposite rudder and aileron to slip it more if I could have gotten it down..or if I would have just snapped it in...anyhow I am torn between feeling lucky and disgusted..
I recently swapped motors, and I was trying a different prop today, and it went lean and died on me. I haven't been flying it alot, and I haven't dead sticked it in a couple years.. i remember it usually glides pretty long and fast if its real calm, but comes down steep with a breeze. Mine is a bit heavy with a gas motor but flies great.. Well i was on one of the outlaying flight positions , not center field ..and the engine died.. I wasn't real high up ..60 feet maybe , I didn't really take my eyes off the plane to scan exactly, and unfortunately I didn't have a spotter. My first thought was I am too high to land north into a 4 mph wind, and too low to turn out and down wind and do a new approach, I possibly could have turned 180 degrees and landed down wind and probably went in the bean field.. But that required turning at the flight line and possibly stalling mid turn near everyone. So I decide to go north. On the end of our field is a double set of levees to contain a small creek on its route to the river. So I had to lose altitude without to much speed to either land going north, or bend it west at the end and roll up near the fence. I did some draggy right and left banks using just a tiny bit of aileron and rudder... but I just couldn't lose enough altitude and maintain a low enough speed. Finally I was at the end of the field and I thought oh no, I am going to be hauling butt when I roll into that fence. That wasn't the problem I had... the plane was about 20 feet off the field over the levees, as I turned to level off, there I am settling into the worst place possible. It caught the right wings in the tall grass and weeds hauled it down, a nasty smack sound and you could hear it rolling down in the 8-10 feet deep creek bed (dry now thankfully) Anyhow I get over there and the motor mounts broke off, taking the cowl with it. I must have about 8 holes and tears in the monocote, but I don't think it BROKE A SINGLE STICK on the plane !
That was a lucky ending, but I am still just sick, I don't know if I made the worst emergency decision, but I sure wish I had made a better one! I don't know if I had the nerve to use a little opposite rudder and aileron to slip it more if I could have gotten it down..or if I would have just snapped it in...anyhow I am torn between feeling lucky and disgusted..
09-28-2008, 02:03 AM
#1286
RE: GP Super Stearman
I thought that Saturday was going to be the day, for me. My taxi testing went well. The G-23 had plenty of power and the Stearman felt light and was ready to lift off.
I throttled back, to taxi back to the pits, when the motor died.
The inspection revealed a nonlinear throttle response. Too much play in the lower end of throttle, making it impossible to get consistant low idle. I'm using the B&B throttle kit, but the problem seems to be in throttle arm on the G-23.
Has anyone else encountered a similar problem ? I'd like to get this solved before I put this beauty in the air.
I throttled back, to taxi back to the pits, when the motor died.
The inspection revealed a nonlinear throttle response. Too much play in the lower end of throttle, making it impossible to get consistant low idle. I'm using the B&B throttle kit, but the problem seems to be in throttle arm on the G-23.
Has anyone else encountered a similar problem ? I'd like to get this solved before I put this beauty in the air.
09-28-2008, 09:11 PM
#1288
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RE: GP Super Stearman
Talk about surprises. [sm=bananahead.gif]Today I went out fly my Stearman. As I was taking off I mishandled the rudder and the plane veered of the run way. No problem, as I was crossing the runway I could here the engines was still running. I though it had died.
I had given my radio to my spotter a newbie to hold. Not know that the engine was still running he invertally hit the throttle stick. Boy did I get excited, I yelled at him to stop but he didn't know what was going on. He didn’t realize he had hit the stick. [sm=spinnyeyes.gif]Fortunately the plane was pointed way from me and it went into the brush and flipped over front to back. And again fortunately nothing was damaged. Wow what a rush. [sm=eek.gif]Just goes to show how quickly things can happen wrong.
Sh... happens!
Shubova
[8D]
I had given my radio to my spotter a newbie to hold. Not know that the engine was still running he invertally hit the throttle stick. Boy did I get excited, I yelled at him to stop but he didn't know what was going on. He didn’t realize he had hit the stick. [sm=spinnyeyes.gif]Fortunately the plane was pointed way from me and it went into the brush and flipped over front to back. And again fortunately nothing was damaged. Wow what a rush. [sm=eek.gif]Just goes to show how quickly things can happen wrong.
Sh... happens!
Shubova
[8D]
09-29-2008, 06:17 PM
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RE: GP Super Stearman
Hi iflyfastashell. What engine is that? Looks like a First Place Engine. Will you be able to use a 22" prop? Do you have any good ideas on beefing it up for the 50cc ? My son and I are just starting to put it together. Great pictures!
09-29-2008, 08:24 PM
#1293
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RE: GP Super Stearman
Capt. Ron, check my earlier post (1259) of another S.S. flying with 170R. I will be sure to post a video of mine. I hope to get her in the air before the snow flies.
09-30-2008, 07:27 PM
#1295
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RE: GP Super Stearman
that is a crcc 50 pro it swings a 22x8 or 22x10 it is a strong runing motor. if you look at the fire wall other than maybe pinning the triangle stock that is on the frame where it goes thru the firewall i cant see anywhere else to make stronger. it is all pinned and blocked reallty well.
10-01-2008, 11:40 AM
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RE: GP Super Stearman
Thanks iflyfastashell. On some of my other planes, I use baking soda and CA. If I have a hard to reach area I use a straw to place the baking soda then drip in the CA. It has worked good so far.
10-01-2008, 12:42 PM
#1297
RE: GP Super Stearman
I take every arf I build, stand it on the firewall, and flow gorilla glue/elmers ultimate, into every nook and cranny around the firewall and fuselage joints, let it swell up for a few hours, ties it all together really well.. Not one firewall torn out yet ...including a recent incident with my stearman where I broke both metal motor mounts ...rubber isolated dubro mount let go, instead of firewall.
10-01-2008, 02:04 PM
#1299
RE: GP Super Stearman
It swells up about 4-5 times larger than when you started, it depends on humidity, you can even mist it with water for more foaming...just take a couple pieces of scrap wood, glue them together, use a clamp , watch how much it expands as a test.. I love the stuff, makes a light tough gripping gusset all down the joint...