GP Super Stearman
#476
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I have a G26 I plan to put in mine and have a question to anyone with a Master Airscrew 18x6 prop. Did you use the spinner that came with the kit? If so did you just cut it out to fit the prop or what? Or should I just get a Tru-Turn to fit the prop? Thanks
#477
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From: RS, BRAZIL
ORIGINAL: ElectRick
You mean dummy engine like the PT-17 version of this plane has?
You can buy the PT-17 dummy engine as a replacement part from Tower Hobbies. You'd also need the PT-17 cowl for mounting the dummy onto, which they also have.
I think the dummy engine that comes with the PT-17 looks hideous, so I did up a Williams Bros. 7 cylinder dummy for my GP PT-17. Since I'm doing mine as an electric, it doesn't have to get hacked up to make a glow engine fit inside it.
Rick
You mean dummy engine like the PT-17 version of this plane has?
You can buy the PT-17 dummy engine as a replacement part from Tower Hobbies. You'd also need the PT-17 cowl for mounting the dummy onto, which they also have.
I think the dummy engine that comes with the PT-17 looks hideous, so I did up a Williams Bros. 7 cylinder dummy for my GP PT-17. Since I'm doing mine as an electric, it doesn't have to get hacked up to make a glow engine fit inside it.
Rick
Thx Rick.
#478
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From: HuddersfieldEngland, UNITED KINGDOM
I have a G26 I plan to put in mine and have a question to anyone with a Master Airscrew 18x6 prop. Did you use the spinner that came with the kit? If so did you just cut it out to fit the prop or what? Or should I just get a Tru-Turn to fit the prop? Thanks
#479
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From: Vail,
AZ
til,
I have the classic M.A. 18x6 on mine. Yes, you will hve to cut out the kit spinner for it to fit right. I didnt like the kit spinner(too small) and got the true trun AT-6 which is bigger but still needed to be cut for the prop to fit.
Stangevil29
I have the classic M.A. 18x6 on mine. Yes, you will hve to cut out the kit spinner for it to fit right. I didnt like the kit spinner(too small) and got the true trun AT-6 which is bigger but still needed to be cut for the prop to fit.
Stangevil29
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From: Vail,
AZ
SierraD,
Sorry, I am on a remote tour outside of the country for a year. Unfortunately, I couldnt bring any of my (toys) with me. I have to get into these electrics to give something to do. I just took a dremmel tool to the true turn a lttle at a time. Be sure to balance it when you are done.
Stangevil29
Sorry, I am on a remote tour outside of the country for a year. Unfortunately, I couldnt bring any of my (toys) with me. I have to get into these electrics to give something to do. I just took a dremmel tool to the true turn a lttle at a time. Be sure to balance it when you are done.
Stangevil29
#482
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From: Malaysia, MALAYSIA
I'm about to pick up the stearman this weekend. The instruction did not mentioned about how to mount spinner. Does it include the prop shaft adaptor for the spinner ie how we screwed in the bolt from the spinner? Does it fit 8mm shaft?
#484

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From: Lee\'s Summit, MO
Hey Sam!
Those pics are outstanding. What camera are you useing? Not that the camera is responsible for your framing of the plane in the pics. Very high resolution, bet its a high dollar camera.
Craig
Those pics are outstanding. What camera are you useing? Not that the camera is responsible for your framing of the plane in the pics. Very high resolution, bet its a high dollar camera.
Craig
#485
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From: Pheonix,
AZ
Is Williams Bros. Up and going again? Sorry I haven't been keeping up with RCU, out in the shop starting a Flair 6' Fokker Triplane, I just wish it was more scale, I will be looking for some Spandaus before long.
D. Jarvie
D. Jarvie
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From: Jacksonville,
FL
ORIGINAL: DMJ199
Is Williams Bros. Up and going again? Sorry I haven't been keeping up with RCU, out in the shop starting a Flair 6' Fokker Triplane, I just wish it was more scale, I will be looking for some Spandaus before long.
D. Jarvie
Is Williams Bros. Up and going again? Sorry I haven't been keeping up with RCU, out in the shop starting a Flair 6' Fokker Triplane, I just wish it was more scale, I will be looking for some Spandaus before long.
D. Jarvie
Rick
[link=http://www.williamsbrothersmodelproducts.com]Williams Brothers Model Products[/link]
#488
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From: Jacksonville,
FL
If the Stearman you saw was indeed mine, it was an Aerodrome RC 1/8th scale electric powered Stearman. It's still flying, but only occasionally, as I don't want to unduly risk it. From what I have read, the kit has unfortunately been pulled from the lineup by the owner for fear of potential copyright/royalty violation litigation by Boeing. It seems I have one of the few kits that were built.
It's a shame that kit manufacturers have to now fear some hotshot attorney from Grumman, Boeing, Lockheed or other aerospace corporation coming after them for such a thing as creating a scale model of one of their designs, when it's never been much of a concern before now. It is scaring a lot of the little guys right out of business, and certainly is a growing threat to our hobby.
Rick
It's a shame that kit manufacturers have to now fear some hotshot attorney from Grumman, Boeing, Lockheed or other aerospace corporation coming after them for such a thing as creating a scale model of one of their designs, when it's never been much of a concern before now. It is scaring a lot of the little guys right out of business, and certainly is a growing threat to our hobby.
Rick
#489
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Here's a question. How many dummy cylinders should I leave on for a G26 engine? I cut one out for a total of eight, but it kind of looks like I had better cut another one out for a total of seven. What did you guys with the G26 do?
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From: Orange,
TX
Thought you guys might like to see how I crammed my ZDZ 40 into my GP Super Stearman. Note throttle and linkage setup, custom-built pitts muffler and engine mounts, close pivot point on aileron drag links. Plane has all digital high-torque JR's. Radio setup includes dual elevator servos, differential ailerons, switchable and rotary dial flaps, idle down/throttle cut, dual rates, and exponential. I also removed original tank and installed a smaller ten-ounce tank centered over the CG. This allows at least 13 minutes of flight time on gasoline. I'll post other details later if anyone is interested.
The Duper
The Duper
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I have a question for anyone using a Zenoah G26 and the Master Airscrew 18x6 Classic prop with the stock spinner. I cut the spinner slots to get the Classic 18x6 prop to fit and ordered the adapter kit from Tru-Turn (TT-0825-A). The problem I have is the adapter sticks out about 1/8 of an inch too far and I can't get the stock spinner to fit. I really didn't want to spend fourty something dollars on an AT-6 spinner if I didn't have to. Should I have gotten the "Short Shaft" version or a different kind of adaptor or what?
#492
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From: beaverton, OR,
I have the same set up and had to grind down the front of the adapter to get the dome to fit into the back plate. I also used a plain washer between the adapter washer and the prop. You will have to shorten the bolt that holds the dome to the adapter a little. Have about 15 flights and no trouble with spinner as of yet. G-26 seems to give a good scale flight, enough power for some limited vertical, and crusies about 1/2 throttle. Very happy with plane once I figured how to land it.
#493
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From: HuddersfieldEngland, UNITED KINGDOM
The duper
Please let us have more detailed pics on the zdz40 setup (especially the throttle linkage). Currently using an MVVS 26cc but have the zdz40 and have considered fitting this combo.
Has it flown? if so how does it fly?
Did the CofG work out ok?
thanks
til
Please let us have more detailed pics on the zdz40 setup (especially the throttle linkage). Currently using an MVVS 26cc but have the zdz40 and have considered fitting this combo.
Has it flown? if so how does it fly?
Did the CofG work out ok?
thanks
til
#494
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Thanks Drone pilot, I was wondering if anyone took that aproach to this situation. That's probably what I will do as well. I wonder if the other guys did the same thing?
#495
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From: Orange,
TX
Til,
My Super Stearman made her maiden flight today. She made a graceful scale takeoff with no need to panic with the rudder. Turns required rudder coordination to get her to come around, but this might have something to do with my setup using differential ailerons. The engine was running a little burbly so I avoided any rolls or loops on the first flight. I was able to tweek the high and low needles later, and the engine idled and transitioned reliably and high speed was stable. The landing was smooth with no bounce, but I did take up all but ten feet of our six-hundred foot runway.
Attached are more pictures of the throttle and choke setup. This is a real challenge on this plane because the carb is right in the plane of the firewall! I made a box that extends aft of the firewall for the carb to keep it from belching into the fuselage. I replaced the original throttle control arm lever arm with a longer one. Because the carb is at an odd angle it is necessary to use a bellcrank and mount it so it is in the same plane as the throttle control arm. A very short control link made from two ball ends and a short piece of all-thread ties the throttle control arm to the bellcrank. I used Sullivan semi-rigid pushrod between the bellcrank and the throttle servo. I had to mount the throttle servo outboard of the servo tray.
The choke control was no easy deal either. I thought about using a choke servo, but just didn't think it was necessary. I made a longer lever arm for the choke and installed a ball end and a piece of plastic inner push rod. This push rod extends out the engine cowling immediately behind the cowl ring and is a very clean setup. I thread the fuel vent line and the choke rod through their respective holes as I install the cowl.
I access the needle valves through a hole in the ignition battery tray, but only when the cowl is off. I really didn't want to mess up the top of the cowl.
Note the use of the 1/4-turn fuel dot (Madison Components). Very clean.
My Super Stearman made her maiden flight today. She made a graceful scale takeoff with no need to panic with the rudder. Turns required rudder coordination to get her to come around, but this might have something to do with my setup using differential ailerons. The engine was running a little burbly so I avoided any rolls or loops on the first flight. I was able to tweek the high and low needles later, and the engine idled and transitioned reliably and high speed was stable. The landing was smooth with no bounce, but I did take up all but ten feet of our six-hundred foot runway.
Attached are more pictures of the throttle and choke setup. This is a real challenge on this plane because the carb is right in the plane of the firewall! I made a box that extends aft of the firewall for the carb to keep it from belching into the fuselage. I replaced the original throttle control arm lever arm with a longer one. Because the carb is at an odd angle it is necessary to use a bellcrank and mount it so it is in the same plane as the throttle control arm. A very short control link made from two ball ends and a short piece of all-thread ties the throttle control arm to the bellcrank. I used Sullivan semi-rigid pushrod between the bellcrank and the throttle servo. I had to mount the throttle servo outboard of the servo tray.
The choke control was no easy deal either. I thought about using a choke servo, but just didn't think it was necessary. I made a longer lever arm for the choke and installed a ball end and a piece of plastic inner push rod. This push rod extends out the engine cowling immediately behind the cowl ring and is a very clean setup. I thread the fuel vent line and the choke rod through their respective holes as I install the cowl.
I access the needle valves through a hole in the ignition battery tray, but only when the cowl is off. I really didn't want to mess up the top of the cowl.
Note the use of the 1/4-turn fuel dot (Madison Components). Very clean.
#496
How do you guys think this plane would fly using a Zenoah G20 for power. The engine is supposed to be able to turn a 15x6 at 9500 rpm. I don't have the plane yet but was wondering about this engine for it.
Brian
Brian
#498

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I have been looking at the [link=http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXEUN2&P=0]GP Super Stearman [/link] and putting a Brillelli 40cc engine on the business end. The Brillelli 40cc weighs 6oz less the the Z G26 and swings an APC 18X10 at 7700 rpm new out of the box. Physical size shouldn't be a problem as it's about the same size as my Brillelli 25cc I currently have. I'd sure like some feed back from some of you guys flying this plane with a gasser.
#499

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I'm thinking the G20 would perform much like a 1.20 FS or better, but more cheaply on fuel.
I'm thinking the G20 would perform much like a 1.20 FS or better, but more cheaply on fuel.
I mounted a TME smoke pump and tank on a tray right over the CG so I'm a bit heavier than most but this plane just screams for smoke
#500
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From: Somewhere
OK, I am new to gas and need a litttle help now. I am at the point of hooking up the kill switch and the fuel lines. First off, the on/off switch has two leads, one with a plug type end, does that get pluged into the black lead hanging off the coil on the G26? The other end has a round washer type end, does that just get grounded to the engine? Should I put that end through one of the four mounting screws or what? Also should I just mount the on/off switch on the side of the cowl then? The other thing is the fuel line hookup, I would like to use the fuel dots, so do I run one line form the fuel dot to the tank, the other line from the klunk in the tank the the carb, and a third line from the vent to the bottom the the plane?



