Stuck building 1/2a shrike
10-25-2006, 01:31 PM
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Stuck building 1/2a shrike
I am building the fuse of the shrike and the instructions say to cut 4, 1-11/16" long servo rails. There are notches for them in the sides of the fuse. One says to go behind F3(for the throttle servo) then it says to cut out G2 from sheet one and glue under the servo rail as shown on the plans.....well....I don't have a G2 nor do I see it on the plans....also the plans show the throttle servo in front of F3...but the servo rail is behind it! I am so confused[sm=confused.gif].....if anyone who has built one could help me out here I would really appreciate it!
thanks
-Bill
thanks
-Bill
10-25-2006, 01:39 PM
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RE: Stuck building 1/2a shrike
I'm at work so I can't look at my plans, but from what I remember, the thing that goes under the throttle servo rail is the little triangle. It's necessary because later you will cut half of the throttle servo rail off.
10-25-2006, 03:19 PM
#3
RE: Stuck building 1/2a shrike
Bill --
Give us an image of your plans with the fuselage in the center -- the shot in your photos just cuts off the servo location. My plans are at home too -- although finding them could be a problem.
Give us an image of your plans with the fuselage in the center -- the shot in your photos just cuts off the servo location. My plans are at home too -- although finding them could be a problem.
10-25-2006, 03:35 PM
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RE: Stuck building 1/2a shrike
ORIGINAL: Andrew
Bill --
Give us an image of your plans with the fuselage in the center -- the shot in your photos just cuts off the servo location. My plans are at home too -- although finding them could be a problem.
Bill --
Give us an image of your plans with the fuselage in the center -- the shot in your photos just cuts off the servo location. My plans are at home too -- although finding them could be a problem.
10-25-2006, 04:17 PM
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RE: Stuck building 1/2a shrike
BSARGE,
This probably isn't the reply you want but I really wouldnt sweat this detail. G stands for gusset, it is a triangular piece of stock just like the G1 pieces shown. If I were building this I would just use a small pico servo for the throttle Or the smalest you have and double sided tape it to F3. Then hit the tape with some thin ca. It will not come loose.
Darren
This probably isn't the reply you want but I really wouldnt sweat this detail. G stands for gusset, it is a triangular piece of stock just like the G1 pieces shown. If I were building this I would just use a small pico servo for the throttle Or the smalest you have and double sided tape it to F3. Then hit the tape with some thin ca. It will not come loose.
Darren
10-25-2006, 04:34 PM
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RE: Stuck building 1/2a shrike
ORIGINAL: rrragmanliam
BSARGE,
This probably isn't the reply you want but I really wouldnt sweat this detail. G stands for gusset, it is a triangular piece of stock just like the G1 pieces shown. If I were building this I would just use a small pico servo for the throttle Or the smalest you have and double sided tape it to F3. Then hit the tape with some thin ca. It will not come loose.
Darren
BSARGE,
This probably isn't the reply you want but I really wouldnt sweat this detail. G stands for gusset, it is a triangular piece of stock just like the G1 pieces shown. If I were building this I would just use a small pico servo for the throttle Or the smalest you have and double sided tape it to F3. Then hit the tape with some thin ca. It will not come loose.
Darren
thanks
-Bill
10-25-2006, 04:58 PM
#7
RE: Stuck building 1/2a shrike
ORIGINAL: BSARGE
I guess what concerns me the most is the instructions say to put the servo rail behind F3(which there is a cutout in the fuse side for)...but the plans show the servo in front of F3.....or maybe as you said....don't worry about....just tape it and fly it!
I guess what concerns me the most is the instructions say to put the servo rail behind F3(which there is a cutout in the fuse side for)...but the plans show the servo in front of F3.....or maybe as you said....don't worry about....just tape it and fly it!
10-25-2006, 05:15 PM
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RE: Stuck building 1/2a shrike
I'm hearing you Bill the instructions and plan seem to be in confict with each other. Ya know for as long as this plane has been around you would think the MFG would of caught that little discrepency. Another option would be to just make your own rails after the fuse is built and install whatever servo your going to use. I have never had a taped servo come loose as long as it's installed correctly. A coulpe of tips are:
Use the 3M brand outdoor type tape thats made for sticking up numbers an so forth on a house. It's super sticky and strong.
Put a few light score marks in the servo case with a hobby knife where the tape will go.
Clean the servo case and former with Alcohlol. The servo case has a release agent on it from the molding process that needs to be removed.
Once in place hit the tape with some THIN ca.
Good luck with the build and keep the pictures comming.
Darren
Use the 3M brand outdoor type tape thats made for sticking up numbers an so forth on a house. It's super sticky and strong.
Put a few light score marks in the servo case with a hobby knife where the tape will go.
Clean the servo case and former with Alcohlol. The servo case has a release agent on it from the molding process that needs to be removed.
Once in place hit the tape with some THIN ca.
Good luck with the build and keep the pictures comming.
Darren
10-25-2006, 07:03 PM
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RE: Stuck building 1/2a shrike
ORIGINAL: flyinrog
I was looking at this problem too..I'm thinking ..wire the throttle open, and leave the servo at home.. its not like we're gonna be doing slow passes on it right!!...Rog
I was looking at this problem too..I'm thinking ..wire the throttle open, and leave the servo at home.. its not like we're gonna be doing slow passes on it right!!...Rog
Great point!
10-25-2006, 10:32 PM
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RE: Stuck building 1/2a shrike
ORIGINAL: flyinrog
Oh btw I just got the shrike .10 in the G2 is on sheet one on that plane and the other sizes except the 1/2A plane...
..Rog
Oh btw I just got the shrike .10 in the G2 is on sheet one on that plane and the other sizes except the 1/2A plane...
..Rog
10-25-2006, 11:07 PM
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RE: Stuck building 1/2a shrike
Sneasle,
I understand what Rog is saying. The G2 gusset is not included or a part of the 1/2A kit that BSARGE is building. It's a part of the .10 size and larger kit only. Probably the MFG downsized a popular kit into a 1/2A aplication and didn't include this change in the instuctions.
Darren
I understand what Rog is saying. The G2 gusset is not included or a part of the 1/2A kit that BSARGE is building. It's a part of the .10 size and larger kit only. Probably the MFG downsized a popular kit into a 1/2A aplication and didn't include this change in the instuctions.
Darren
10-26-2006, 07:54 AM
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RE: Stuck building 1/2a shrike
Hi BSARGE,
the G2 gusset can be placed further back, so that the throttle servo shares the mount with the aileron and elevator servos.
I uploaded a pic of my 1/2A Shrike re-build after a head-on collision with a .40 sized trainer, that just happens to show
the servos and thethrottle servo forward mount with the gusset, if you look close. This gets the throttle servo further back, and
makes installing the tank easier, especially if you use a 1.5 or 2 oz. tank. Since the time this pic was taken, I have done
away with the throttle altogether; installed a C/L hi-performance venturi on the engine, and removed the throttle servo.
To me, the throttle is nearly useless on the 1/2A Shrike, as one won't be taking off of the ground, and you won't likely
be doing touch-and-go's, or landing under power... I figured I might as well save the weight of the servo, and potential
air and fuel leakage with Norvel's R/C carburetor design (barrel to body fit, fuel nipple fit where it threads into the barrel).
The C/L venturi is dead simple (less can go wrong), and the air flow path is smoother than the R/C carb inlet.
the G2 gusset can be placed further back, so that the throttle servo shares the mount with the aileron and elevator servos.
I uploaded a pic of my 1/2A Shrike re-build after a head-on collision with a .40 sized trainer, that just happens to show
the servos and thethrottle servo forward mount with the gusset, if you look close. This gets the throttle servo further back, and
makes installing the tank easier, especially if you use a 1.5 or 2 oz. tank. Since the time this pic was taken, I have done
away with the throttle altogether; installed a C/L hi-performance venturi on the engine, and removed the throttle servo.
To me, the throttle is nearly useless on the 1/2A Shrike, as one won't be taking off of the ground, and you won't likely
be doing touch-and-go's, or landing under power... I figured I might as well save the weight of the servo, and potential
air and fuel leakage with Norvel's R/C carburetor design (barrel to body fit, fuel nipple fit where it threads into the barrel).
The C/L venturi is dead simple (less can go wrong), and the air flow path is smoother than the R/C carb inlet.
10-26-2006, 07:59 AM
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RE: Stuck building 1/2a shrike
I dont think you could fit a .10 on the 1/2A kit, heck the .061 barley fits that why I thought of wiring the throttle open.....if you go to the Sport Flying forum, there is a huge thread on Shrikes and I think some guys are even stuffing .40's in the .10 model!! but that even a .25 is overkill...it is some good reading and pics...go look...Rog
Yes Darren thanks for clearing up my thread the instr say the G2 is on sheet one, it is on the .10 size but it doesnt exist on the 1/2A size...
Yes Darren thanks for clearing up my thread the instr say the G2 is on sheet one, it is on the .10 size but it doesnt exist on the 1/2A size...
10-26-2006, 01:44 PM
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RE: Stuck building 1/2a shrike
ORIGINAL: Electric Delta
Hi BSARGE,
the G2 gusset can be placed further back, so that the throttle servo shares the mount with the aileron and elevator servos.
I uploaded a pic of my 1/2A Shrike re-build after a head-on collision with a .40 sized trainer, that just happens to show
the servos and thethrottle servo forward mount with the gusset, if you look close. This gets the throttle servo further back, and
makes installing the tank easier, especially if you use a 1.5 or 2 oz. tank. Since the time this pic was taken, I have done
away with the throttle altogether; installed a C/L hi-performance venturi on the engine, and removed the throttle servo.
To me, the throttle is nearly useless on the 1/2A Shrike, as one won't be taking off of the ground, and you won't likely
be doing touch-and-go's, or landing under power... I figured I might as well save the weight of the servo, and potential
air and fuel leakage with Norvel's R/C carburetor design (barrel to body fit, fuel nipple fit where it threads into the barrel).
The C/L venturi is dead simple (less can go wrong), and the air flow path is smoother than the R/C carb inlet.
Hi BSARGE,
the G2 gusset can be placed further back, so that the throttle servo shares the mount with the aileron and elevator servos.
I uploaded a pic of my 1/2A Shrike re-build after a head-on collision with a .40 sized trainer, that just happens to show
the servos and thethrottle servo forward mount with the gusset, if you look close. This gets the throttle servo further back, and
makes installing the tank easier, especially if you use a 1.5 or 2 oz. tank. Since the time this pic was taken, I have done
away with the throttle altogether; installed a C/L hi-performance venturi on the engine, and removed the throttle servo.
To me, the throttle is nearly useless on the 1/2A Shrike, as one won't be taking off of the ground, and you won't likely
be doing touch-and-go's, or landing under power... I figured I might as well save the weight of the servo, and potential
air and fuel leakage with Norvel's R/C carburetor design (barrel to body fit, fuel nipple fit where it threads into the barrel).
The C/L venturi is dead simple (less can go wrong), and the air flow path is smoother than the R/C carb inlet.
Man all this feedback on the 1/2A Shrike is "a giving me a hankerin to build one". Like you initialy did, put the throttle servo where it works best according to the aplication. I'm sure Bill can now see that this isn't major issue as you put the servo in back of the F3 former. I think Combattpig nailed it in a previous thread " the plan is just a rough guide" ultimatly you will change a few things here and there to suit the aplication.
A throttle servo isn't necessary but, it's nice to be able to chop the throttle when you get in a jam, or are having problems that require bringing in the plane prior to the fuel running out. Nothing will pucker your hind end like the initial flight of new plane with no throttle on it. If you use a small enough servo it will only cost you 4-6 grams of weight and you can remove it once you have the plane dialed in.
Darren
