Thanks - Howard D. Keney

Hi Bud,

I am at home now so I can check my plane for sure concerning the prop.

I am using a 16x8 master airscrew with a Dave Brown spinner on my Saito 120. When I ordered the spinner Dave Brown (company) asked me what prop I was planning to use. The spinner will come ready to use for your prop. No cutting needed.

I am a Futuba man as well but I couldn't afford their hi torque servos anymore so I am been using Hitech for the last few years. I have used 605's, 625's, and 645's in a 1/4 scale T-Craft, 1/4 scale pitts, 1/4 scale patty wagstaff Extra without a glitch.

Here are a few pictures showing that my engine isn't mounted exactly 90 degrees from vertical as I described in a past post. Hopefully the pictures will give those who are interested a better understanding as to what I was trying to describe.

Nice clean installation Scott, i'm sure your pic's will help someone with the same engine. I haven't decided on a spinner yet...leaning toward tru-turn. I do like master airscrew props though, that's all I use. You mentioned the patty wagstaff extra...i'm building one now for a friend, want to finish his before I get back on my cub. I'm using a brison 2.4 engine with all hitec servos. Nothing against ca hinges but I replaced them with robart hinge points, just feels better with an aircraft this size. Not much wood to bite into but I think the epoxy will do the job.

Bud

Scott,
What kind of fuel filling arrangement are you using and where is it mounted.
Also, what kind of remote glow plug setup are you using and where is it mounted?
Last question, Did you have to use the standoffs behind the motor mount to get the backplate to clear the cowl?

Tim

Like wise, am new to this Forum and " how to " , have had a Saito 150 and getting ready to
order the Cub - Hope I did not go astray , and buy wrong engine - as it was one DP had suggested- that would fit . Also , trying to find out which Tru Turn spinner is most appropiate for this plane ... tom e

Hi Tim,

I am using a fuel dot and it is center mounted on the bottom of the fueslage. It is silver in color. If you look at the 4 pictures of my plane a few post back you can just see it. You have to look at the photos in large scale to see it.


Just behind the fuel dot I have mounted (black) a dubro glow extension and a JR on/off charging jack. You can just begin to see them in the photos if you look real hard at large scale.

By mounting everything on the bottom you can keep the scale looks unspoiled. My exhaust is mounted enough to the side to keep these switches from getting oiled.

I did have to use the included mounting blocks in order to use the included engine mount. If you had an engine mount with longer mounting rails you could avoid using the mounting blocks. I considered using a GP 1.80 adjustible mount that came with 1/4 scale patty wagstaff. However, I finally decided on using the supplied mount so I could follow the DPM mounting instructions.

Scott

Hi,

Could one of you guys give me the inside width of the cowl?


Thanks,

Scott Allison
Louisville, Kentucky

Scott...8-3/4" at the rear and approx. 8-1/4" at the center. My O.S. 160 twin fits perfectly, what engine are you using?

Bud

Thanks for the fast reply Bud,


I'm looking into other options for a different candy drop plane. I have an OS 160.........but how does that haul it around? I want to over power it as much as I can. I currently carry a 3 1/2-4 lb payload. I would like to carry at least 6 pounds.
What does your bird way, and how does the OS 160 haul it? Will it go vertical on take off? (I know, I know, it's a Cub and isn't supposed to do that!)

Scott Allison
Louisville, Kentucky

My father's Cub which I flew a month ago had no problems at all hauling it around. As far as pulling vertical I'm not sure like you said it is a Cub But I do know that the plane was over powered and that if enough elevator it would pick right off the ground. My dad doesn't fly and I live in Tennesse so the plane doesn't fly all that much. Nothing like your dad letting you fly his. So future flight reports will come next year as he has winterized the airplane.



PS cool candy plane bet the kids love it keeps up the interest in the little ones.

Scott, Thats a wild looking bird you've got there! Neat idea. Dick Pettit did a short review on the cub with the 160 twin earlier in this post, you'll probably have to go back to page 1 and look for it. Mine has not flown as i'm not finished building it yet.

Bud

The full review is in the January 2005 issue of R/C REPORT, due to be mailed any day now

FYI,after couple of weeks , trying to fax & calling - recorder recorder - sent in an order for the White version. The lady called me back tonight, as I was getting out of the shower - Rc'd your
order BUT - no White Cubs Can send your $$ back or , OK I will settle for the plain jane Yeller . she said she would get it out tomorrow - I was hoping to do a Paint Scheme on the White one, such as I saw up in Alaska - couple weeks ago . I have an OS 160 to put in the plane.
She said it would be ? months and months before any more White Cubs. te

Sorry you didn't get the white one but at least you got to Alaska!! Oh.Man...floatplane heaven. Beavers and more beavers.

Bud

Hey Guys...nice thread...let me add my experiences to it. Dave uses a YS140 in his Super Cub, and it has awesome power. I have opted for the Saito 150, (spinning an APC 16-8 prop), just because I had one available. I had to cheat a little when centering the 150 in the cowl. It is actually off center by a very tiny fraction of an inch...not even noticeable...the Dave Brown spinner lines up just about perfectly with the cowl, and the guys at the field congratulate me on getting it lined up right on center. The other cheat I did to obtain motor clearance inside the cowl, was to file down the ribs on one of the Saitos rocker arm covers. It was an easy job to do with a sander, and then I repolished it to look more natural. I have now gotten a good business card thickness of clearance between the cover and the cowl. Only one needed to be done. I figured it's only a cover...cheap and replaceable..and so I took a chance...and it worked out well. Balance is an issue with this plane. I have found it to be very forgiving of an imbalance, but best to follow Daves instructions on CG location. The manual shows the Rx battery nicely mounted next to the Rx. Well forget that. This Cub comes out way tail heavy. Plan on it ahead by putting your battery way forward, (I use a big 6 volt battery), under or alongside the fuel tank, and add your on-board-glow battery up there too. I had to do this, and also I deleted 2 of the 3 tail assembly leaf springs to save tail weight, but still had to add an unthinkable 16 ounces...yep one full pound of lead right onto the motor mount, in order to achieve the recomended CG balance. Now let me add that I flew the first three flights without any lead weight up front, but the planes tail saged down and it was obviously out of balance. I knew it beforehand, but hateing to add dead weight, I though I'd give it a try first. Now, after spending a good bit of time correctly setting up the proper CG, (4 3/8 inch aft of the LE), I have yet to give it a check flight, but weather permitting, tomorrow will provide me with that opportunity. For balancing, Dave hangs his Super Cub from the ceiling on wires connected to the wing mounting bolts. A very handy idea. Much easier than messing around with a modified Great Planes balancer. Those wing securing bolts had to be somewhere and so Dave thoughtfully placed them on the CG. How nice! The Saito 150 has all the power you need to fly Cub like, including mild aerobatics. I'm running standard Omega 15% fuel, but I will try the Saito recomendation of 30% heli mix next time out. I do not need the extra power, but I am told that the heli fuel will bring RPMs up while actually lowering head temperatures.
I installed a 16 ounce fuel tank and got three 10 minute flights out of it, with fuel to spare. Bear in mind that I am flying it Cub like, very scale, very slow. Not much high throttle at all. A flying buddy powered his with an OS120 four stroke with good results. Roll rate is incredibly slow, almost scary, but then it is a Cub...not an Extra. She is a floater, and without a good CG balance youll have to push her down to land. Flaps really slow things down and do require some down elevator mixed in to keep everything nice and level, otherwise she'll balloon quite dramatically. When installing the aileron hinges, do not try for a close gap. Inserting the hinges too far will only cause insufficient aileron up travel as the ailerons will strike the overhanging wing top sheeting. Do be sure you have the prescribed aileron throws before bonding the hinges in place. I used Hitec 5625 digital servos because I like the precise centering and the strong fast authority, but Dave assures us that any reasonable (70 in/oz) servo will do the job well. The real fun I get with the Cub is doing those lovely, slow touch and goes, and flying the circuit at a very low altitude, and very slowly. It looks soooo real. I have been using the stock Saito muffler, exiting the bottom center of the cowl. It was an awful trick getting that to fit, and I will soon be removing that muffler and replacing it with the Saito Flex-Pipe with a pressure tap for the fuel tank. I am quite happy with my Cub, and I'll post a follow up after I fly a few more check out flights. In closing, let me say that in light of the need for so much balance weight up front, I am looking to replace the Saito with a gas motor. It'll swing a bigger prop....more torque and less speed...and the fuel is cheaper. I just have to find one to fit inside the cowl.
Bye for now, and happy Thanksgiving.
Jim

Check out FlyRC, Jan 2005, p. 24.

Hey Ben..what's there, I don't have access to that mag.

Bud

FlyRC attended the NEAT Fair. I brought my Cub up and they put a pic of it in the magazine. It's my first time having a plane in a mag. Pretty fun!

-Ben

Cool! Makes you feel good huh? I had my scale jet ranger helicopter in R/C Excellence, they did an article on it. Had to frame that rascal.

Capt Jim...thanks for the report, hope you'll add some pic's.

Bud

Here's an update on the balance situation. I just couldn't bear lugging a pound of lead around on this plane so I removed it, and built a battery tray...very similar to the fuel tank tray already in the Cub. It enabled me to locate my big, heavy, 2700mAh 6 volt battery all the way up forward under the fuel tank...the on board glow battery is there too. This mod' has helped the balance quite a lot and although the balance without any additional nose weight is not quite where I think it should be, it does appear to be acceptable, and tomorrow a test flight will tell the tale. I have replaced the stock Saito muffler with the Saito flex pipe. The oil from the exhaust now is dumped quite a bit lower...possibly now the landing gear may stay a bit cleaner....I sure hope so..it is a difficult area to clean up due to all the rods, springs, screws, etc.
More to follow after the flights.
Jim

Cap't Jim,
Your gonna fly tomorrow? Oh Yeah....Florida. We just had a 57 mph windy day here, no flying till our club chilly fly....heck, maybe not even then. []

Ben, Found the fly r/c mag at the LHS and saw your cub, must say it is as pretty as all the other pictures you posted.

Bud

Good mornin' Bud. Yup, good old S. Florida. Here's a copy of todays weather forcase right off the website...
Today. December 2, 2004. Partly sunny. Highs in the lower 80s. Northeast winds around 5 mph in the morning becoming east 5 to 10 mph in the afternoon.
Come on down...we've got room for more flyers down here. Now let me warn you. The summer is pretty miserable. We laughingly call it our "building season", because we rather stay indoors, in the air-conditioning. Oh, we go out and fly, but we try to get it in during the early morning hours...before the heat and humidity takes your breath away. Oh, did I mention fire ants. Them little bugs have a big bite, and it leaves a sore lump for quite a while...like a bee sting. They are all over our field...in fact they are all over the state. I'm not tryin' to discourage you, but I'll bet you don't have alligators anywhere near your flying field. I've never had to land on one of 'em, but I see them most every day on the way to the field. WE fly out on the edge of the everglades. Thats where regular folks want us to go to play with our terribly dangerous projectiles. heh heh...it's a paradise OK, but it does have its compromises. Even with all of this, I would never go back to the great frozen north. Born and raised in New England. Brrrrr, never ever. Happy building season to you all.
Happy Holidays.
Jim

Haaaaa.....you want fire ants? he,he, we used to live in Vicksburg Miss. First day in the new house my 4 year old son (now 32) was rolling in the grass playing...need I say more? And humidity? Got dressed for a dance and went outside to start the car 30' away and was soaked when I got to it. Then we moved to New Orleans with the job and you had to get up to wash the car at 6 before it got hot at 7....most cars were kept in the driveway because the people used the garage for their lawn chairs where it was cooler. I did live in Fla. when I was 20, lived in winter park for two years, hobby took a backseat while we water skied every day...lake was in backyard. I have two sisters and a brother that live in Fla. Brother is up here temp. while they rebuild his double wide in Vero beach, lost it in hurricane so he's staying with people from his old job. My flying is now restricted to summer here and winter is build time. That's o.k. hate the cold but like the season change, born and raised here but kinda miss New Orleans, feels like that's where I belong. Happy holidays to you also.

Bud

Ben, what did you use for your power setup, and how do you like it so far?

I'm running an Actro 40-6, Apogee 10S3P Lipos, Menz 18x10 prop. It's over powered for just sport flying, but I could use a little more power for aerotow. When Castle releases their high volt controller I'll run 12S3P and that should be about right for towing.

-Ben