Transition Kadet to 4 star.
#26
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From: Ottawa, ON, CANADA
Flight delayed once more hopefully ill get up tommorow afternoon.
I just noticed my rudder pushrod is a bit stiff is there a way to prevent this. The tension is coming from the outer and inner layyer of the nylon tube. Any suggestions.
Thanks,
Papa
I just noticed my rudder pushrod is a bit stiff is there a way to prevent this. The tension is coming from the outer and inner layyer of the nylon tube. Any suggestions.
Thanks,
Papa
#27

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From: Dunnunda, AUSTRALIA
To relieve the control friction without re-engineering, buy youself a can of silicon spray lube and spray with the direction tube supplied between the nyrod inner/outer. It won't relieve inbuilt friction due to a poor setup, but will reduce the higher friction you'll experience with SIG nyrods. Whilst I like SIG designs and their kits, their included hardware is 'ordinary' and that's being kind. Their nyrods are plain dreadful when compared to Sullivan or DuBro product. More friction, plus they react (stretch & shrink) more with extremes of temperature fluctuation.
If spraying with silicon lube doesn't reduce your rudder control rod friction to an acceptable servo load, you'll have to discover what is actually causing the friction and fix it by re-engineering the problem out. NB: Fix the problem on the ground before flying. You can't can fix it once in the air.
Listen to Uncle Ted and Crashem about the rest Papa, especially about the importance of range checking. If I may expand in more detail upon their sage advice.
Antenna
On taildraggers, an external antenna run needs to be along the top of the fuselage to avoid a risk of snagging ground FOB.
You can run it inside the fuselage if you want, but it's better to have it externally mounted for regular inspection and minimisation of risk of interferance. It's smart to engineer an easment (circular servo mount grommet or fuel tube will do) in the hole where the antenna exits from the fuselage. On the Four Star this is commonly through the cockpit roof itself or just aft of the cockpit, although there's not much solid there to mount it on and you need to either run a conduit up the back of the cockpit rear former or make up a small plywood mount for it between the stringers.
You should have a internal strain relief (button is ideal) on the antenna. The average RX antenna length is overlong for the Four Star 40 fuselage. Extend it to the top of the fin (mounting) and then just let the excess 4 inches or so trail. If you must run it through the fuselage, DuBro sell protective antenna shroud for that exact purpose.
Tailwheel
Wheel collar (preferable), or solder in place with a washer.
Axles
Wheels rotate around the axles. NOTE: The 'axles' (threaded bolts) SIG supply with that kit are sh*t. Do yourself a favour and buy a pair of DuBro or Great Planes axles. Again, fasten with wheel collars. Don't ruin a good set of wheel hubs by drilling them out because SIG were too tight to include decent axles in the kit. (That REALLY suxs SIG!) When the Four Star meets with its end as it inevitably will, you will find the aluminium undercarriage, wheels and axles will be useful for another model. I think just about everyone must keep a Four Star perpetually in their plane inventory, so when you prang it, you will almost assuredly end up building another. Happy landings!
If spraying with silicon lube doesn't reduce your rudder control rod friction to an acceptable servo load, you'll have to discover what is actually causing the friction and fix it by re-engineering the problem out. NB: Fix the problem on the ground before flying. You can't can fix it once in the air.
Listen to Uncle Ted and Crashem about the rest Papa, especially about the importance of range checking. If I may expand in more detail upon their sage advice.
Antenna
On taildraggers, an external antenna run needs to be along the top of the fuselage to avoid a risk of snagging ground FOB.
You can run it inside the fuselage if you want, but it's better to have it externally mounted for regular inspection and minimisation of risk of interferance. It's smart to engineer an easment (circular servo mount grommet or fuel tube will do) in the hole where the antenna exits from the fuselage. On the Four Star this is commonly through the cockpit roof itself or just aft of the cockpit, although there's not much solid there to mount it on and you need to either run a conduit up the back of the cockpit rear former or make up a small plywood mount for it between the stringers.
You should have a internal strain relief (button is ideal) on the antenna. The average RX antenna length is overlong for the Four Star 40 fuselage. Extend it to the top of the fin (mounting) and then just let the excess 4 inches or so trail. If you must run it through the fuselage, DuBro sell protective antenna shroud for that exact purpose.
Tailwheel
Wheel collar (preferable), or solder in place with a washer.
Axles
Wheels rotate around the axles. NOTE: The 'axles' (threaded bolts) SIG supply with that kit are sh*t. Do yourself a favour and buy a pair of DuBro or Great Planes axles. Again, fasten with wheel collars. Don't ruin a good set of wheel hubs by drilling them out because SIG were too tight to include decent axles in the kit. (That REALLY suxs SIG!) When the Four Star meets with its end as it inevitably will, you will find the aluminium undercarriage, wheels and axles will be useful for another model. I think just about everyone must keep a Four Star perpetually in their plane inventory, so when you prang it, you will almost assuredly end up building another. Happy landings!
#28
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From: Ottawa, ON, CANADA
Thanks Sigrun,
I still couldnt fly it due to westher conditions however im going on a trip so ill bring it along with and hopefully madien it there.
Sorry but i have to say this and get this off my chest. My plane looks great (cant find my digital so i cant show you) and hopefully will fly well but the kit was crap. There were so many problems that just added to the already stressful time i was having. Usually i enjoy buidling however this was just insane of the amount of things that were wrong with this kit.
First a wing rib was missing, warped stab, missing bolts, tension in the pushrod and tons of more little problems that just annoyed me alot. Not to mention but these sig hinges suck the robart hinges i used instead were so mcuh easier to install its not even funny.
Ok thats better. Instead of tampering with the pushrod i bought a long metal one and ran that thru. I ran the antenna along the bottom and its going to be really hard to change so i doubt i can do it anytime soon (dont worry ill range check).
Anyways thanks alot ill let you guys know how its goes as sson as possible.
See ya in 2 weeks,
Papa
I still couldnt fly it due to westher conditions however im going on a trip so ill bring it along with and hopefully madien it there.
Sorry but i have to say this and get this off my chest. My plane looks great (cant find my digital so i cant show you) and hopefully will fly well but the kit was crap. There were so many problems that just added to the already stressful time i was having. Usually i enjoy buidling however this was just insane of the amount of things that were wrong with this kit.
First a wing rib was missing, warped stab, missing bolts, tension in the pushrod and tons of more little problems that just annoyed me alot. Not to mention but these sig hinges suck the robart hinges i used instead were so mcuh easier to install its not even funny.
Ok thats better. Instead of tampering with the pushrod i bought a long metal one and ran that thru. I ran the antenna along the bottom and its going to be really hard to change so i doubt i can do it anytime soon (dont worry ill range check).
Anyways thanks alot ill let you guys know how its goes as sson as possible.
See ya in 2 weeks,
Papa
#29
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From: Ottawa, ON, CANADA
Sorry guys for the delay,
I finally maidened my 4 star i took off and landed on the sand bar in the middle of the Atlantic ocean. Yes i know it was crazy but i was really frustrated.
Anyways heres it is. I was having some problems with my engine so it took me a while fiddling with the needle. The weather was perfect absolutly no wind. The engine seemed fine for a while so i increased the throttle and took off. I was so suprised to see how fast it jumped of the ground. With a little airelon and elevator trim it was flying smooth. This plane flys so nice its stable like a trainer but when it wants it can be really maneuverable. Anyways im coming down for a landing but it didnt seem to want to come down so thinking i was going to take it up and have another try i get a deadstick. I fly it right it a puddle of salt water (it was a very nice landing with the exception of that). So i grab it out clean it off range check and its ready to fly again. I take it up do some basic maneuvers nothing fancy do some touch and goes and bring it in.
This is honestly the best flying plane i have ever seen. Although i didnt really like the kit (got alot of bad luck with it) sig totally makes up for it with the flying capability the 4 star has.
Anyways thanks alot for everyones help i did a couple more flights with it but now i really want to get some practice with it.
Thanks again,
Papa
I finally maidened my 4 star i took off and landed on the sand bar in the middle of the Atlantic ocean. Yes i know it was crazy but i was really frustrated.
Anyways heres it is. I was having some problems with my engine so it took me a while fiddling with the needle. The weather was perfect absolutly no wind. The engine seemed fine for a while so i increased the throttle and took off. I was so suprised to see how fast it jumped of the ground. With a little airelon and elevator trim it was flying smooth. This plane flys so nice its stable like a trainer but when it wants it can be really maneuverable. Anyways im coming down for a landing but it didnt seem to want to come down so thinking i was going to take it up and have another try i get a deadstick. I fly it right it a puddle of salt water (it was a very nice landing with the exception of that). So i grab it out clean it off range check and its ready to fly again. I take it up do some basic maneuvers nothing fancy do some touch and goes and bring it in.
This is honestly the best flying plane i have ever seen. Although i didnt really like the kit (got alot of bad luck with it) sig totally makes up for it with the flying capability the 4 star has.
Anyways thanks alot for everyones help i did a couple more flights with it but now i really want to get some practice with it.
Thanks again,
Papa



