Sig Kadet Senior Weight
07-11-2009, 12:58 PM
#1
Sig Kadet Senior Weight
I just finished assembling a Sig Kadet Senior and I am surprised at the finial weight. The specs say 6-6.5 lbs. but mine ended up at 8.5 lbs. Of that, 12 oz is balast in the nose and 23 oz is for a OS 61 FSR-abc engine and muffler. So without engine and balast I was already over the max spec weight of 6.5 lbs. It was a by-the-book assembly. The wing loading is still only 17 oz per sq ft., so it should fly fine.
What weight did you all end up with on a Kadet Senior?
Bruce
What weight did you all end up with on a Kadet Senior?
Bruce
07-11-2009, 01:42 PM
#2
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RE: Sig Kadet Senior Weight
In my immediate past I have had 3 Kadet Sr. :
1st: a 20 year old Kadet Sr flown with rudder [without ailerons], which had a .46 glow engine, alive and well without any lead. It balanced perfectly without added weight. It has a NLG
#2. An ARF [that folded it's wings] with an obscene amount of lead on the firewall and a OS 56 Alpha FS on the nose. [Tail dragger]
#3 A kit built Kadet Sr with an OS 56 Alpha FS that also required quite some lead to balance. [Tail dragger.]
#4, an ARF sits quietly waiting in its box to be let out. [a replacement sent by SIG after the wing folding event]
1st: a 20 year old Kadet Sr flown with rudder [without ailerons], which had a .46 glow engine, alive and well without any lead. It balanced perfectly without added weight. It has a NLG
#2. An ARF [that folded it's wings] with an obscene amount of lead on the firewall and a OS 56 Alpha FS on the nose. [Tail dragger]
#3 A kit built Kadet Sr with an OS 56 Alpha FS that also required quite some lead to balance. [Tail dragger.]
#4, an ARF sits quietly waiting in its box to be let out. [a replacement sent by SIG after the wing folding event]
07-11-2009, 03:02 PM
#4
RE: Sig Kadet Senior Weight
Red, after 36 years of balancing RC planes (and for 20 years before that of balancing CL planes) I know when to move everything as far forward as possible before adding weight to the nose
, but I do appreciate the suggestion. I even looked at mounting the battery in the engine compartment but there was not enough room. I also had to add 1.25 oz to the left wing tip for lateral balance. This was also quite a bit more than I am use to. The plane is made of very dense hard balsa. At least it should be strong
.
Bruce
, but I do appreciate the suggestion. I even looked at mounting the battery in the engine compartment but there was not enough room. I also had to add 1.25 oz to the left wing tip for lateral balance. This was also quite a bit more than I am use to. The plane is made of very dense hard balsa. At least it should be strong.Bruce
07-12-2009, 10:21 AM
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RE: Sig Kadet Senior Weight
Mine is a bashed Sr. from plans purpose built for piggyback glider launching. One half of standard dihedral, Barn Door flaps and ailerons, conventional landing gear, totally modified tail surfaces with the addition of tail brace wires, bomb bay door, and many beef up mods. It weighs about 10 lbs and with flaps and ailerons can land much the same slow speed of a stock lightweight Kadet. Power is an OS 1.08, covering is Super Coverite with Randolph dope. Plane is about 14 years old and has been flown a bunch.
07-14-2009, 10:40 AM
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RE: Sig Kadet Senior Weight
If anyone has the ARF version I would strongly encourage you to add fiberglass cloth and resin to the wing center section. Mine folded on the first flight flying straight and level. If you search you will find other people where the same thing happened.....Brian
08-18-2009, 02:20 PM
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RE: Sig Kadet Senior Weight
There is more to the problems besides the wing....... I just recieved a Kadet ARF and the wings are the least of the problem: So far there is no Ca or apoxy just white glue and very little of it.........You need to check yours at all the joints with just a little pressure to make sure they are holding.....
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10-12-2009, 01:50 PM
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RE: Sig Kadet Senior Weight
What is going on with Sig's quality control. All of the recently purchased Sig Kadet Senior ARF's at my field have problems with covering fading - becoming brittle - shredding during flight - glue joints separating etc.
I purchased my Kadet Senior ARF several years ago. The covering has not faded or degraded and the air frame is still tight. I guess I'm one of the lucky ones????
I purchased my Kadet Senior ARF several years ago. The covering has not faded or degraded and the air frame is still tight. I guess I'm one of the lucky ones????
10-12-2009, 03:10 PM
#11
RE: Sig Kadet Senior Weight
ORIGINAL: DLU
What is going on with Sig's quality control. All of the recently purchased Sig Kadet Senior ARF's at my field have problems with covering fading - becoming brittle - shredding during flight - glue joints separating etc.
I purchased my Kadet Senior ARF several years ago. The covering has not faded or degraded and the air frame is still tight. I guess I'm one of the lucky ones????
What is going on with Sig's quality control. All of the recently purchased Sig Kadet Senior ARF's at my field have problems with covering fading - becoming brittle - shredding during flight - glue joints separating etc.
I purchased my Kadet Senior ARF several years ago. The covering has not faded or degraded and the air frame is still tight. I guess I'm one of the lucky ones????
Bruce
10-12-2009, 03:27 PM
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RE: Sig Kadet Senior Weight
That's because you haven't flown it long enough. Wait till next summer to see if the covering fades. If it does keep a close watch on it.
10-12-2009, 04:27 PM
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RE: Sig Kadet Senior Weight
Wow I was all ready to list my weight of my Kadet SR Arf then I realized we were talking about 3 different planes hear. Built Kadet SR, Kadet SR(arf), and a Kadet.
Anyway my Arf Sr Kadet is 5 years old with no problems weights 8lb even with a 72 4cycle Satio, and is converted to a tail dragger with a external servo in tail for steering.
Anyway my Arf Sr Kadet is 5 years old with no problems weights 8lb even with a 72 4cycle Satio, and is converted to a tail dragger with a external servo in tail for steering.
10-12-2009, 05:14 PM
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RE: Sig Kadet Senior Weight
Mine is 11 years old with a Saito 65 and 2 oz. wt. against the firewall along with the battery verticle right behind it. It's a tail dragger and has servos on each aileron I added along with small split flaps of 1/16 ply, fiberglass main gear, about 3/4 oz. wt. in one wing and aluminum tube struts. After a crash I stripped the Coverite fabric and recovered with MonoKote. Weighs 6 # now exactly and flys great.
