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~~Sig Kadet Brotherhood~~.

Old 05-27-2020, 08:12 PM
  #3601  
Flight Risk
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Originally Posted by daddyvinny View Post
I had a Kadet Senior, but the battery unplugged on take off after a touch and go. I had not checked the battery before flying because, well it was just too reliable after 11 years of flying this plane almost every week end. The engine, an OS LA .40 was locked at full throttle, slight left turn, slight up elevator. It circled up into the clouds. It typically flies 50-55 minutes on a tank if fuel. I lost it in the clouds. I had left my radio with my friend and chased after it in the car, but it was just now viewable. Another friend was looking out the window coming home from church a week later and saw my plane next to someones fence 7 away from the original take off site. He gave me the address and I went to pick it up. The right wing ran across the top of the chain link fence and nearly cut the leading edge and lower spar off. I figured after 11 years of flying nearly every weekend, that air frame had seen enough, so it was permanently retired to the trash can. Some fuel soaking was taking place under the monikote causing a few areas to peel..
Good post Vinny. I'm always amazed with guys who can keep planes flying for years. I have some old ones, but none that fly every few weeks, or months. So, your plane had a 7 mile flight? That's quite a distance.
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Old 05-29-2020, 05:16 AM
  #3602  
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I think what made this plane just right is that it was not over powered. I could fly it in 30 mph winds, of course I would not turn around, just take off in one direction, play in the wind for 30 minutes and land. It just acts like a bush plane. They land so slow and gentle it's hard to crack them up. I have flown 3D, pylon racing planes, patter planes, and there is nothing more relaxing than the Kadet series of airplanes Seniorita and Senior.
Old 06-01-2020, 06:20 AM
  #3603  
EF
 
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Originally Posted by daddyvinny View Post
I think what made this plane just right is that it was not over powered. I could fly it in 30 mph winds, of course I would not turn around, just take off in one direction, play in the wind for 30 minutes and land. It just acts like a bush plane. They land so slow and gentle it's hard to crack them up. I have flown 3D, pylon racing planes, patter planes, and there is nothing more relaxing than the Kadet series of airplanes Seniorita and Senior.
After 45 years of R/C flying I totally agree, but someone at our field pointed out to me that flying one makes people think you’re a beginner to R/C, to which I replied that I just couldn’t see the problem...


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Old 06-01-2020, 06:57 AM
  #3604  
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That remonds me I need to take my LT40 for a flight, its only 25 years old. Its a spring chicken compared to Erez's airplane!
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Old 06-01-2020, 08:39 AM
  #3605  
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Shoot, one of my favorite planes is my LT-40. However, anyone who thinks I'm a beginner will think otherwise when I put the plane though it's paces. It might look like a trainer, but it doesn't fly like a trainer. I have a snappy elevator, and nearly flat wings. If I had smoke you could see a ribbon instead of a loop. If I move CG back I could do tail slides. If I were to extend the rudder a bit more, I could do hammer heads. Not enough rudder surface for some things, like knife edge, but it will do one for a little bit before the nose falls. It does amazing side slips and is a blast to fly on a windy day. It is almost as much fun to fly as the Something Xtra, but can't harrier or snap it. Not enough aileron. If I were to widen the aileron, they are already full length, then mix in some flaperon, I bet it would Harrier.
Old 06-01-2020, 09:05 AM
  #3606  
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I recently bought a Seniorita having never had one before. It has been built but not finished - tissue and dope only. No ailerons. It came with a 15 size engine. At this stage I might even be able to make it a tail dragger. I am open to suggestions.

I do plan on 4 channels - putting the rudder on the aileron channel and steering on the rudder channel. I always liked being able to go back to a trainer when I would goof up on one of my other planes and since it has been a while since I have been in the air a trainer is still a good idea. The only problem is I got rid of all my fuel stuff. All my other planes are electric.
Old 06-01-2020, 09:59 AM
  #3607  
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I had a friend who could knife edge my LT40. He was also a former member of the US World Pattern Flying team too. I wanted to see what a pilot with his talents could do with it and I wasn't disappointed.
Old 06-01-2020, 11:26 AM
  #3608  
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Mine will get into a knife edge, just doesn't stay there very long. I suppose I could try balancing it again and take some weight off the nose which will help. It flies so well now though. It skims in nicely for a landing, and occasionally I can 3 point land it, depends on if there is a wind or not. Dead calm days I can land it on mains and tail over and over again, but if there is a breeze it just want to keep floating and climbing until it stalls, so I just land level on the mains. It's set up as a tail dragger.
Old 06-01-2020, 11:29 AM
  #3609  
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Stupid question, did you lateral balance it?
Old 06-01-2020, 11:45 AM
  #3610  
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Yep, the balance is pretty good on it, and because the wings are nearly flat it will hold orientation instead of rolling level. It can be an advanced trainer, but it is no longer a NOOB trainer as it won't hands off recover. Going to do a CG test next time I have it up and see if it holds or drops, and I think it will drop because I am pretty sure it is still a bit nose heavy. It has zero dead weight in it. When I built it, I balanced at the forward CG mark, over time the weights fell off, so there are none on it. I also swapped the OS out for the FG-11, which weighs a little bit more than the OS-52 with the ignition, but moved the ignition back towards the wing to compensate. It still balanced correctly, I just don't know where in the range. I built it 9 years ago, busted it once, cracked the LE once, and ripped the gear off once, all in the first year. Have had to replace all the hinges at one time or another, and next time around will put pin hinges in. Going to find some 1/4 or 3/8" hard balsa and make new ailerons for it and move the servos out mid wing instead of the single one in the center so I can set up flaperons. I did that with the 4*120, and will full I can practically stop the plane in the air for a few seconds before the nose drops. Should make the plane more exciting to play with.
Old 06-01-2020, 11:56 AM
  #3611  
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But what about the lateral balance? First you get the CG balance where you want it. Then you lateral balance by holding the plane from the tip and tail and balance to so neither wing dips down. I ended up with a penny glued inside one wingtip but it as been so long I can't tell you which one.
Old 06-01-2020, 01:14 PM
  #3612  
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Lateral is good too. I use the vanessa with does both quite easily. When I build I prebalance everything by weighing all the parts, offsetting the muffler by putting the heaviest wood on the opposite wing. It takes time, but makes it easier once it comes time for final balancing. If it's an electric, then I try to equalize it as close as I can so both wings weigh the same, and the lightest wood towards the tip.
Old 06-01-2020, 08:09 PM
  #3613  
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Concerning lateral balancing, remember there’s a difference between static balancing (that you described) and dynamic lateral balancing that you can only check in flight.

Start with lateral balancing before flight but don’t be surprised if you find a need to ‘change/upset’ it for proper behaviour in the vertical plane manoeuvres, not that it should be all that critical in the first place, for a Sig Kadet and its original design goal.
Old 06-17-2020, 06:32 AM
  #3614  
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Default Can I join the Kadet brotherhood??

Belt a Kadet back in 75 - 76....believe it or not has never been flown...it has an Enya .29 installed and would like to convert it to electric....any suggestions??

Last edited by doberman; 06-17-2020 at 06:59 AM.
Old 06-17-2020, 06:49 AM
  #3615  
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Pull the Enya, fuel tank, and throttle servo then add the equivalent electric motor, install an ESC, and put the battery in the tank compartment. Don't forget to rebalance it because the CG is going to change. You can eliminate the receiver battery and run off the LiPo or keep it to run the radio gear and remove the battery lead from the ESC plug going to the receiver.
Old 06-17-2020, 07:00 AM
  #3616  
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Originally Posted by FlyerInOKC View Post
Pull the Enya, fuel tank, and throttle servo then add the equivalent electric motor, install an ESC, and put the battery in the tank compartment. Don't forget to rebalance it because the CG is going to change. You can eliminate the receiver battery and run off the LiPo or keep it to run the radio gear and remove the battery lead from the ESC plug going to the receiver.

Any suggestions on what size electric motor and mount to use?
Old 06-17-2020, 07:09 AM
  #3617  
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The motor size will depend on the weight of the airplane and the style of flying you want to do. Most electric motors will come with a mount some will have the prop adapter other price it separately. Remember you must use an electric prop NOT a prop designed for glow engines. Hacker has a good guide for motor selection here:

https://hackermotorusa.com/resources...ication-guide/

You can buy from them or find a less expensive equivalent from another supplier but Hacker makes excellent electric motors.
Old 06-17-2020, 07:20 AM
  #3618  
neons
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You have some great advice from the guys above. I did my Sig K. Senior back in 2008. I used a Turnigy low 500Kv range 60 size motor with a 60 Amp Esc that can handle up to 6s lipos. .I flew 4s for years, Now I upped it to 5s with reserve power. Hobby King makes a nice adjustable mount to set up alignment and length. I flew with a 14x6 Apc prop and sometimes wood prop with no problems. I cut the top nose of the fuselage in the tank area for a drop in battery. I have been flying this plane for years now an it is one of my favorites I cannot live without. Here is a video and pics I posted earlier in this link here. It demos the flight and the great characteristics as an under wing tilt camera system I use a lot. The camera system is strapped on under the wing with elastics, Go for it. You will never be sorry. Enjoy.
~~Sig Kadet Brotherhood~~.
**Neons** Bob
Old 06-17-2020, 03:46 PM
  #3619  
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Originally Posted by doberman View Post
Belt a Kadet back in 75 - 76....believe it or not has never been flown...it has an Enya .29 installed and would like to convert it to electric....any suggestions??
Of course you can join!!!! Gotcha logged, #222. Welcome to the SIG Kadet Brotherhood!!

Here we be, IF the code still works:



    1 - GaryHarris
    2 - soarrich
    3 - N1EDM
    4 - Live Wire
    5 - 5skyhawk172
    6 - zippome
    7 - shepard62
    8 - DeferredDefect
    9 - archie05
    10 - tomgreen
    11 - n2ryd
    12 - race61
    13 - Slavko
    14 - lkruse
    15 - flyingagin
    16 - JPNYGAARD
    17 - foodstick
    18 - ovationdave
    19 - joebahl
    20 - WI53072
    21 - huck1199
    22 - Top_Gunn
    23 - Nergall
    24 - acdii
    25 - hutchis
    26 - ddewey
    27 - dhal22
    28 - Thomas Pham
    29 - cubkadet
    30 - Greg Davis
    31 - CanDo
    32 - gva1956
    33 - metaldriver
    34 - Bladejunkie
    35 - New222
    36 - cubflyman
    37 - dasquirrelisme
    38 - Planejaw
    39 - usc1990
    40 - cjet
    41 - Murphey
    42 - Sandyt
    43 - planedriver_2
    44 - PT19
    45 - TimHendrix
    46 - jessiej
    47 - Mr-Punk
    48 - rccrasher65
    49 - FMAY
    50 - Hrannar
    51 - Razor44
    52 - Ken Kehlet
    53 - oldfartpilot
    54 - Soaring Steve
    55 - freefall2907
    56 - fix-n-fly
    57 - SigMan
    58 - eroc144
    59 - nextofkin
    60 - ALT
    61 - jstyle13
    62 - WYDAH
    63 - stupidscreenname
    64 - coxco
    65 - TunnelBill
    66 - mike109
    67 - beevo
    68 - Lowvoltage
    69 - skylark-flier
    70 - hugh durden
    71 - Cloud Cruiser
    72 - SIGPlanes



    73 - rexperk
    74 - M. Boesen
    75 - whatwheel
    76 - Wagon1
    77 - paulhold
    78 - groundstrike
    79 - adreliable661
    80 - earlwb
    81 - Unclebuck21228
    82 - malitape
    83 - Dave Holmes
    84 - Carlos G
    85 - kingranch
    86 - Red Kadet
    87 - dirtrod
    88 - t4
    89 - FlyerInOKC
    90 - DELTAFLY
    91 - sharpe917
    92 - jollyroger
    93 - Cliffc
    94 - 1320fastback
    95 - captinjohn
    96 - spaceworm
    97 - EvanB
    98 - Major Tomski
    99 - Jim Branaum
    100 - WLM189
    101 - skyraider71
    102 - rc lifer
    103 - NM2K
    104 - terrysigcolt
    105 - plane-o-joe
    106 - BobFE
    107 - FLAPSDOWN
    108 - scttsprg
    109 - sbrillha
    110 - Mike Gretz
    111 - skyrat71
    112 - lumppi
    113 - bchapman
    114 - scoooper
    115 - JollyPopper
    116 - CNY_Dave
    117 - rtn9105
    118 - mbnt
    119 - crawler tech
    120 - 308jockey
    121 - bparker3
    122 - DBD1
    123 - Chappy110
    124 - ercobud
    125 - rickpell
    126 - ThunderBoat42
    127 - tazzzz
    128 - ThunderChicken72
    129 - deanz406
    130 - biam
    131 - UPF-7
    132 - neons
    133 - Flyboy14901
    134 - proszak59
    135 - wildbills21
    136 - hairy46
    137 - p-Yock
    138 - rrengineer
    139 - hogflyer
    140 - Firewalkerd1
    141 - Flight Risk
    142 - ratshooter
    143 - Steve Westphal
    144 - cforcht


    145 - kb8ife
    146 - rburke39
    147 - rc56
    148 - redjack
    149 - rdgettler
    150 - daddyvinny
    151 - MartyPetriSr
    152 - tomclark
    153 - c-crunch
    154 - BigTeeEldorado
    155 - TomCrump
    156 - hiflyer15
    157 - Fly North
    158 - dwaynenancy
    159 - oinoyou
    160 - Jersy Hank
    161 - flashpilot
    162 - Old_RC_Guy
    163 - TheComputerGeek
    164 - FloridaBeachFlyr
    165 - aggieman
    166 - Renegade
    167 - T-47
    168 - SigSenior
    170 - WMB
    171 - ckimmey
    172 - paul7194
    173 - bebopgolf
    174 - Big Stikflyer
    175 - nealmontgomery
    176 - Battle Short
    177 - canadian8apilot
    178 - Mud Duck
    179 - EDDIEMAC
    180 - merto31
    181 - bisszerk
    182 - Pork Chop
    183 - bushman8377
    184 - cmy6
    185 - ETpilot
    186 - michaelnel
    187 - mortyspals
    188 - PiperRon
    189 - BrightGarden
    190 - schwalbe
    191 - Brayden
    191 - GIVdriver
    192 - wood489
    193 - KenChoo
    194 - aliraminghe
    195 - shadowridertcw
    196 - Hydro Junkie
    197 - SPACE COWBOY
    198 - Bumpie
    199 - jsparky
    200 - br549-2
    201 - PatrickCurry
    202 - Dwayne
    203 - Leroy Gardner
    204 - FazFly
    205 - Shere-Khan
    206 - Jeff Spicoli
    207 - bodybuildr
    208 - Sport_Pilot
    209 - arnieby
    210 - richard dee
    211 - pens100
    212 - Dave Swanson
    213 - robflyer82
    214 - leitefrog
    215 - fennel
    216 - eeyess
    217 - jayyak
    218 - Mwt5086
    219 - funfly8
    220 - rcFLYBOY14
    221 - Wharfrat4life
    222 - doberman


Old 06-30-2020, 06:33 PM
  #3620  
do335a
 
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skylark-flyer,
best sign me up for the group.
My first Kadet was a Senior, when they first came out in the mid 1980's. Power was a well worn loop scavenged OS 40, which was more than enough power.

It was a real joy o fly that plane since at the time I was at a field with surrounding farmland and an industrial/warehouse complex to the rear. I'd show up early in the day on weekends and have the plane in the air just as the sunrise broke over the horizon. What a great time that was - beautiful morning, almost no wind. the only sounds from the many birds and my plane.

Unfortunately, one day, the rubber bands holding the wing on broke and down it came. Found the fuselage with the radio and engine. Never found the wing, having scoured the area several times.

Next Kadet was a Mark II with a side mounted HP 40 Gold Cup, using a Pitts style muffler. That was a touch squeeze to fit all that under the cowl while maintaining clearance for the steerable nose gear.

Although considerably faster than the Senior, it flew well too. However, we all make mistakes sometimes. Wwe had a few trees at the end of the field. One day, on base turning final, I came a bit too close. A stray branch tore through the upper wing covering. I did notice a bit of a bump in the flight path when that occurred. Once that panel of covering was replaced, the plane flew like always.

Finally, I was persuaded by a club member to sell it to him. Bad move on my part.


Old 06-30-2020, 07:38 PM
  #3621  
tedsander
 
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Do I qualify to join? 53 yrs doing RC. My first real take offs and landings were with a Kavalier. Later trained many, many beginners who showed up with a Kadet, LT-40 or a Senorita, but never owned one myself.

Just last week I was given a pre-owned LT-40 ARF to use with my clubs training program. Not really mine, of course - it belongs to the club. But I am responsible for all care, feeding, and repair until one of the hopefully many, many beginners makes a mistake I don't catch in time....

Currently in the shop getting an engine transplant (with a NIB HP Gold Cup, that I'm donating to the cause), getting some patches on the covering, etc. Might even get some air time on it tomorrow....
Old 06-30-2020, 08:41 PM
  #3622  
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do335a - you're late!!! I thought you'd ask a long time ago. GOTCHA NOW THOUGH!!!! Y'er in with #223

tedsander - of course you qualify!! Y'er a fan of Kadets, y'er in!!!! Gotcha logged with #224.

Welcome, both of you, to the SIG KADET BROTHERHOOD!!!!

And, with our first double entry in a long, long time - here's what we look like today:



    1 - GaryHarris
    2 - soarrich
    3 - N1EDM
    4 - Live Wire
    5 - 5skyhawk172
    6 - zippome
    7 - shepard62
    8 - DeferredDefect
    9 - archie05
    10 - tomgreen
    11 - n2ryd
    12 - race61
    13 - Slavko
    14 - lkruse
    15 - flyingagin
    16 - JPNYGAARD
    17 - foodstick
    18 - ovationdave
    19 - joebahl
    20 - WI53072
    21 - huck1199
    22 - Top_Gunn
    23 - Nergall
    24 - acdii
    25 - hutchis
    26 - ddewey
    27 - dhal22
    28 - Thomas Pham
    29 - cubkadet
    30 - Greg Davis
    31 - CanDo
    32 - gva1956
    33 - metaldriver
    34 - Bladejunkie
    35 - New222
    36 - cubflyman
    37 - dasquirrelisme
    38 - Planejaw
    39 - usc1990
    40 - cjet
    41 - Murphey
    42 - Sandyt
    43 - planedriver_2
    44 - PT19
    45 - TimHendrix
    46 - jessiej
    47 - Mr-Punk
    48 - rccrasher65
    49 - FMAY
    50 - Hrannar
    51 - Razor44
    52 - Ken Kehlet
    53 - oldfartpilot
    54 - Soaring Steve
    55 - freefall2907
    56 - fix-n-fly
    57 - SigMan
    58 - eroc144
    59 - nextofkin
    60 - ALT
    61 - jstyle13
    62 - WYDAH
    63 - stupidscreenname
    64 - coxco
    65 - TunnelBill
    66 - mike109
    67 - beevo
    68 - Lowvoltage
    69 - skylark-flier
    70 - hugh durden
    71 - Cloud Cruiser
    72 - SIGPlanes
    73 - rexperk
    74 - M. Boesen




    75 - whatwheel
    76 - Wagon1
    77 - paulhold
    78 - groundstrike
    79 - adreliable661
    80 - earlwb
    81 - Unclebuck21228
    82 - malitape
    83 - Dave Holmes
    84 - Carlos G
    85 - kingranch
    86 - Red Kadet
    87 - dirtrod
    88 - t4
    89 - FlyerInOKC
    90 - DELTAFLY
    91 - sharpe917
    92 - jollyroger
    93 - Cliffc
    94 - 1320fastback
    95 - captinjohn
    96 - spaceworm
    97 - EvanB
    98 - Major Tomski
    99 - Jim Branaum
    100 - WLM189
    101 - skyraider71
    102 - rc lifer
    103 - NM2K
    104 - terrysigcolt
    105 - plane-o-joe
    106 - BobFE
    107 - FLAPSDOWN
    108 - scttsprg
    109 - sbrillha
    110 - Mike Gretz
    111 - skyrat71
    112 - lumppi
    113 - bchapman
    114 - scoooper
    115 - JollyPopper
    116 - CNY_Dave
    117 - rtn9105
    118 - mbnt
    119 - crawler tech
    120 - 308jockey
    121 - bparker3
    122 - DBD1
    123 - Chappy110
    124 - ercobud
    125 - rickpell
    126 - ThunderBoat42
    127 - tazzzz
    128 - ThunderChicken72
    129 - deanz406
    130 - biam
    131 - UPF-7
    132 - neons
    133 - Flyboy14901
    134 - proszak59
    135 - wildbills21
    136 - hairy46
    137 - p-Yock
    138 - rrengineer
    139 - hogflyer
    140 - Firewalkerd1
    141 - Flight Risk
    142 - ratshooter
    143 - Steve Westphal
    144 - cforcht
    145 - kb8ife
    146 - rburke39
    147 - rc56
    148 - redjack



    149 - rdgettler
    150 - daddyvinny
    151 - MartyPetriSr
    152 - tomclark
    153 - c-crunch
    154 - BigTeeEldorado
    155 - TomCrump
    156 - hiflyer15
    157 - Fly North
    158 - dwaynenancy
    159 - oinoyou
    160 - Jersy Hank
    161 - flashpilot
    162 - Old_RC_Guy
    163 - TheComputerGeek
    164 - FloridaBeachFlyr
    165 - aggieman
    166 - Renegade
    167 - T-47
    168 - SigSenior
    170 - WMB
    171 - ckimmey
    172 - paul7194
    173 - bebopgolf
    174 - Big Stikflyer
    175 - nealmontgomery
    176 - Battle Short
    177 - canadian8apilot
    178 - Mud Duck
    179 - EDDIEMAC
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Old 07-01-2020, 04:34 AM
  #3623  
FlyerInOKC
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Now remember guys you asked so no complaints about being guilty by association!
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skylark-flier (07-01-2020)
Old 07-02-2020, 07:40 PM
  #3624  
tedsander
 
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Got four flights on the new-to-me LT-40 ARF yesterday, after two tanks of gas on the bench to break in the HP .40 Gold Cup.
The issues so far:
I THOUGHT I had gone over every seam of covering in prep. But loose edges seemed to pop-up in all sorts of places. Had to judiciously use electrical tape on some spots, to keep the covering from departing in flight (nothing critical, just decorative trim - but I don't have those replacement colors on hand, so didn't want to lose them!). Time to clean thoroughly and heat up the iron again...
Significant trim changes - from being dead on when in my shop, to elevator and rudder being way off after a 40 min ride to the field in 90 degree temps inside the black topped bed of my pickup. I blame the metal pushrods expanding!
And yes, the black trim on the wing leading edge that was shrunk perfectly tight in the shop also came out of the truck with wrinkles. Oh the horror!
The HP fired up first flip. What a sweet engine. Held a great, if deliberately slightly rich, top end after the first tank, and in all the flights. Low end is a tiny bit high, but it is new, and will need a full gallon, at least, through it before I can get her to just tick over.
Winds started at 15-20 mph, but it handled them without any issue. By sunset they had dropped essentially to 0. Geeze it just glides forever. When I start instructing students, I'll have to recalibrate, and have them start final approaches much further out than the previous trainers I was using.
The previous trainers I didn't care about at all. This one will hurt if it gets away from a student, and I am not fast enough to recover. Definitely a three mistakes high plane. And students will now take a LOT longer before I trust them near the ground for landing practice.

Currently using an APC 10x6. Thinking of switching to an 11x5 - any opinions?
Old 07-02-2020, 11:18 PM
  #3625  
Flight Risk
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Originally Posted by tedsander View Post

Currently using an APC 10x6. Thinking of switching to an 11x5 - any opinions?
Well, if you are using it for training and not burning up the sky, the 11x5 may be a good prop. It would probably allow for a slightly slower landing with the bigger prop disk.
How is your training program working? We have ours shut down so far this year. Our field is open, but only to members, no guests, and masks and distancing are encouraged. As with most clubs, our members are older and hesitant to congregate. We've cancelled our July meeting and August is doubtful. But as they say... This too shall pass.


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