jwrich

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Bob, I have found that there were people out there who are interested in all classes of airplane constructions. I follow dozens of constructions threads on RCSB, RCU and RSG. I always learn something and I have been building and flying RC airplanes 1975. I was stationed in areas around the world, Asia and Europe, when I was in the USAF (26 years).There are fantastic builders who dedicated to scale detail in building of the models. So I encourage you to start your building thread, just let us know where you are going put it and the title. Posting pictures with your progress is very helpful and informative. Also, pictures help explain what you are doing and show problem areas you may be having. Posting pictures is not hard once you get the hang of it. The digital cameras are great for this. Go to RCSB (RCScaleBuilder.com), in the Kits section select Balsa USA, there construction articles for all Balsa USA kits. I have several; Balsa USA Kits, on page 2 "BUSA 1/4 Scale Sopwith Pup", on page 4 "Building the BUSA Spad 13" and "Building the BUSA Fooker D-VII. These are an examples of construction threads. If you take the time to read through them, you will see that I received comments and advice from modelers from around the world. Again, if you need help, just ask.

Rich

triumphman49

My Feedback: (149)

Hi Bob, I also have a BUSA Taube 90 (had for too long). Built a Rumpler Taube from BUSA smaller kit after a magazine article sparked my interest years ago, and my plans for the 90 size include similar mods. Would be very interested in a build thread if you start one. The smaller size flew great on a Saito 50, an FG20 is planned for this 90 size. Keep us posted for a build thread.

Thanks
T-man49 in Alabama

Big Stikflyer

This question is for anyone and everyone that builds and flys 1/4 scale. I'm planning on building my first 1/4 scale next winter so I'm beginning the preliminary steps now. I'll be building the BUSA 1/4 scale Cub, I'm going to use a OS Max 120 FS for power and a Futaba 4ch for guidance. My question is about servos. I intend to use a standard servo for throttle, 2 Hitec 1/4 scale servos for ailerons, and 1 each Hitec 1/4 scale servo for elevator and rudder. Should I be using something different? And what about the receiver battery, should I use something different than the standard battery? What battery should I use hoping to keep it with nicads.
Any help would be appreciated.

jeffo

My Feedback: (68)

Your servo choices are fine,I would use a minimum of 2000mah battery 6 volt system.I built the 1/4 Sig cub,I had a O.S.120 in it,later I changed it over to a G26,it really improved its performance.Jeffo

rcmiket

LiFe 6.4 volt batteries are another option they can be had in various Ma's a 2000 to 4000 would be fine . Almost any of the newer receivers can handle that voltage.

Mike

smkrcflyer

Jeffo,
How did the G26 fit in the cowl of the Cub? I was thinking about building a clip wing with that engine but was concern about how much would be sticking out.

VincentJ

Another good engine consideration for the 1/4 scale Sig Cub would be a DLE-30 or even better yet a DLE 35-RA. I built one (clipped wing) several years back and had powered it with a DLE-20, I thought it was too under powered for it's application. If you plan on putting floats on it I would opt for a minimum of the 30.

jwrich

My Feedback: (17)

Bob, over the years I have built several Cubs, most of them were 1/4 scale kits, (Sig, Nosen, and Balsa USA). All of these were powered with a gasoline engines, Zenoah 23 and 38. The larger powered Cubs were used for Banner & Glider Tow and has camera platform. Seems like I have always had a Cub flying, my first airplane ride was in a Piper Cub, I was 6 years old. I have change the cowling on some,and added flaps. I love the Cubs.
The last Cub has been flying since 2009, it has a Zenoah 38 and I use it to take pictures. I will take some detail pictures of it when I can get it down. I have my planes hanging from the ceiling in the garage. It is snowing today and the cars are in the garage. It is very easy to add scale details and produce a beautiful Piper Cub that everyone will identify it is a "Cub".

By the way, you are right on for the servos. Those are what I have in my Cub.

Rich

jwrich

My Feedback: (17)

Here are some pictures of my Cubs over the years. (Open pictures then double click on picture to enlarge it.


Built 2002

Taking pictures of our field

Our old field

Oklahoma Barnstormers





Fair Wind & Happy Flyin'
Rich

Big Stikflyer

Thanks for the information guys. I'll look into the battery packs to see what I can find. I order through tower hobbies so I'll need to see what the have when I start looking.
Thanks again

R/C Art

My Feedback: (38)

We all have our own set ups based on personal preference..... well here is mine:

I fly my 1/4 scale clipped wing cub with a G 23 and I have a standard size Futaba servo on each control surface ......1 on each aileron, 1 on each elevator half, one on the rudder and one for throttle......6 in total. The model would be safe to fly with only 4 standard sized servos, in my opinion (and you know what they say about opinions - they're like armpits we all have them and they all stink - well 'cept for mine).

As for engine choice, if you are a glow 4 stroke kind of person, your 120 will do a fine job and provide plenty of power for aerobatics.


I use 2 servos on the ailerons for more flexibility in radio set up. I use 2 servos on the elevator for redundancy. The rudder is small and really doesn't require anything bigger.

As for a battery - a standard 4.8 volt 700 mah NiCad is sufficient. I have flown a 1/3 Nieuport 11 with a 6 servo set up with 70 in/oz torque servos and used a 1000 mah
NiCad battery and it served me well for 3 years before I replaced it. I fly a lot when I am at the field and frequently flew 5 and 6 15 minute flights safely on a single charge.
I almost always meter my batteries before each flight.

There are a lot of choices out there which will do the job. The important part of the equation is good maintenance, including cycling and metering of your battery pack (for NiCad and Nickle metal batteries - I don't know much about lithium batteries.)

Cheers,
Art

jwrich

My Feedback: (17)

Jay, over the last 4 years I have been changing my receiver batteries and engine ing. batteries. I have replaced them with LiFe (A123) batteries. I use 2 LiFe (2cel-6.6V) receiver batteries with 2 switches plugged into ports in the receiver. If you don't have an open port on the receiver you can use a Y connector pugged into one of the servo connection. These batteries provide 2 separate power supply to the receiver, if 1 battery or switch fails you don't lose the plane. Charging time is a lot less and they hold the charge days longer and be charge quickly at the field. You will need a charger that will charge these types of batteries. I buy my batteries and other items from Value Hobby, their prices are cheaper and I have not had a problem with them. I buy the 2500MAH A123 battery ($12.30) and this is the charger I bought, GT Power X-Charger C6 (with power suppy) $29.26. Check out their web site Value Hobby.com, they are in the states and shipping is quick.


Hope this helps
Rich

[h=2]Here are some information from Value Hobby;
LiFe (lithium iron phosphate) is a lithium-based battery technology that is more stable and safer than LiPO. A123 batteries are based on LiFe technology. LiFe packs can be charged very rapidly and be discharged all the way without damage. Their lower voltage make them suitable for receivers that use 6V receiver batteries. On the downside, LiFe packs have lower voltage and smaller capacity than LiPOs of the same weight.[/h]Product Highlights:

• Lighter and smaller than NiCad and NiMH battery of the same capacity
• Lower voltage than a LiPO, can be used with 6V receivers without a voltage regulator.
• Includes two universal RX connectors, compatible with both Futaba and JR RX.
• Includes one JST connector for rapid charging. Charge your pack in as little as 10 min.
• More cycle life than LiPO, up to 1000 charge cycles.
• More stable and durable than a LiPO. LiFe rarely catch fire and would not be damaged in over-discharge.

Big Stikflyer

Art and Rich
Thank you both for the great information, I'll have to look into both battery systems. The one factor that will not change for me is I really have to watch cost. I'm retired and on a tight budget. That's the big reason Art why I'm using the 120 FS. I already have one, I'm use to running four strokes and the smallest gas engine I have right now is a Quadra 50. I'm saving that motor for my Nosen Big Stik. As I stated this cub will be my first 1/4 scale so I want to keep it simple this time. If I had the money I'd buy the OS Max GT22 and put that in. Oh well
I wondered if it was possible to use standard servos in a bird like this one. Im glad I found a website like this one, a lot of great help just for the asking.
Thank you

N1EDM

My Feedback: (2)

For all you guys who 'heckled and goaded' me into it , I'm going to start a Build Thread on the Balsa USA Taube 90 in the Kit Building section. Let's hope that this link gets any interested parties to it:
http://www.rcuniverse.com/forum/kit-...l#post12293836

Bob

R/C Art

My Feedback: (38)

I'm subscribed!

FlyerInOKC

My Feedback: (6)

I'm signed up Bob!

N1EDM

My Feedback: (2)

Thanks, Guys. I just uploaded a review that RC Report (Dick Pettit) did in 1994. The link is on the Build thread at http://www.rcuniverse.com/forum/kit-...l#post12294555 Post #15.

Bob

FlyerInOKC

My Feedback: (6)

It's a good article too.

jeffEE

My Feedback: (5)

So when are we going to gather at Balsa USA's home field (where ever that is) and fly all of these airplanes? Now that would be an event I would go to!

Big Stikflyer

JEFFEE
I agree, I would go to that. Sig Mfg has one every year, and I'd sure like to see BUSA get one going, but their big thing is the Warbirds and Classic every year. I've gone to the one in St. Charles, Illinois the past two years. Some really nice plane's at the event, mostly WWII type aircraft there.

rcmiket

http://oldrhinebeck.org/event-schedule/

MIke

jeffEE

My Feedback: (5)

RCMike, I would love to get to that show once in my lifetime. But wow, its a long way from Minnesota.

Big Stick, I was at the First 2014 and third 2016 Warbird event in St. Charles. A class act they put on there. My Balsa USA 1/3 scale tripe was chosen as the WWI Best in scale.
I will be there again this year. Stop by and say howdy!

rcmiket

Being in FAR FAR West Texas everywhere is a long was for me.

Mike

Big Stikflyer

JEFFEE
I am planning on going to St. Charles this year as long as nothing comes up. I go as a spectator not a flyer, nice DR1 by the way. I'm hoping I'll have my pennies saved up so I can get BUSAs Flybaby Bipe this year. Maybe I'll see you there.


Mike
I thought I lived far away from things, wow your out there. I was actually stationed in Beeville Tx, which if you don't know where that is, it's 60 miles north west of Corpus Christi. I did enjoy my time there, I did a lot of flying, good weather if you can get past the wind. Plenty of time at the beach as well.

rcmiket

With both of my boys in Lake Villa Ill. I really need to look hard at a visit during that event.

Mike