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Old Jul 31, 2014, 06:27 AM
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Joined Feb 2013
493 Posts
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Originally Posted by yorkiepap View Post
Hey guys,
I got this Stearman from my brother on a trade. I was surprised how tailheavy it is. My bro' installed larger 3" tires & a 25 size motor. As I was configuring CG, I had to keep adding weight with (1) 2200mah installed. Finally, I took out the weights & simply added the 2nd 2200mah battery.....they fit nicely & the CG is dead-on. I have the 2-in-1 Deans connectors for an easy connect. I changed the prop to an APC 12 X 8E. Hopefully, weather permitting, I'll get it maidened this weekend. I should get a great flight time with throttle management & 4400mah available. Here's some pics.....

Denny
My tight group of Flying buddies and I have come to the conclusion of the EF Stearman always seems a little tail heavy no matter how much weight you add to the front end.

She just likes to climb under throttle. We ended up with 5.25 oz of lead in the cylinders and use 3s 3300 and 3700mah batteries.

The control surfaces are larger then needed and require a light touch but she sure flies great.

Jeff……….
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Old Aug 04, 2014, 10:11 AM
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United States, CA, Garden Grove
Joined Oct 2000
12,073 Posts
My Maxford Gee Bee E drove an expert scale builder/flier and myself nuts acting as if it had an anvil hanging from the tail. I kept adding fishing weights to the firewall until it reached 11 ounces, but he kept struggling with it. We finally removed all but one ounce of nose ballast and got the elevator trim set about right for semi-controllable flight. Model required a lot of right aileron trim and holding aileron stick during flights. We finally noticed a slight twist in the right wing that could not be corrected due to carbon fiber spars and leading edge wing structure. Model is flying nicely with 7/8" right aileron up offset and neutral left aileron. Model is hard to land without "gallop"in gusty wind, needs to be flown down to the strip with some power on and landed on the mains without "flare" same as with a biplane. Models with large radial engines, rigging, wheel pants, etc have a lot of drag and are pitch sensitive and stall-prone and need special landing techniques to avoid hard landing gear bending and damage as well as correct CG and elevator trim. Bipes also have a pendulum effect where nose tends to point up after take-off and must be controlled with down-elevator while levelling.
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Old Aug 04, 2014, 04:17 PM
I just want to go fly!
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United States, MD, Towson
Joined Aug 2012
2,428 Posts
got that right!
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Old Aug 05, 2014, 07:30 PM
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United States, FL, Merritt Island
Joined Aug 2013
9 Posts
Glad to see some Stearmans still flying! Have two of them, great looking airplanes but they both make me nervous. Been bitten almost everytime I start to relax with them. They are still around although both have had many repairs. Both have power 15 and pretty close to stock set-ups for servos,esc's & such. Crop duster weighs in at 73 oz AUW 11oz in the nose and Army comes in at 71 oz AUW with 5 oz in nose & recent heavy gear mod. CG's 3.55 & 3.575. Crop Duster flies better but the Army has much more float on landing making it more predictable and more fun to land. Thinking about taking some nose weight out of the crop duster. Anyone flying toward the aft edge of the CG's with these things? Happy Flying!
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Old Aug 26, 2014, 04:00 PM
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SeeMeDo's Avatar
Joined Feb 2013
493 Posts
Took the Stearman out this last weekend here is a shortened video of two flights. The last landing came down a little soon due to the drainage grate, it looks worse on the video but it didn't hit very hard just bounced a little. I should have did a go around. Jeff…………
E-Flite Stearman @ Aaron Bessant Park 24Aug14 (4 min 34 sec)
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Old Sep 16, 2014, 07:26 AM
Christo le Roux
diemanvanstaal's Avatar
Muizenberg, Cape Town, South Africa
Joined Jul 2007
54 Posts
Here are a couple of photos of my newly beloved baby Stearman.
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Old Sep 16, 2014, 07:51 AM
The figure "9" Specialist
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A Barrier Island in New Jersey, USA
Joined Oct 2003
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Quote:
Originally Posted by diemanvanstaal View Post
Here are a couple of photos of my newly beloved baby Stearman.
Lookin' really nice, diemanvanstaal!

Aeronca
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Old Sep 16, 2014, 08:27 AM
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Joined Sep 2010
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Yes , wonderful airplane, nice pictures , great exhaust

Kind Regards

Andy
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Old Sep 17, 2014, 08:39 AM
Christo le Roux
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Muizenberg, Cape Town, South Africa
Joined Jul 2007
54 Posts
Quote:
Originally Posted by Spitty123 View Post
Yes , wonderful airplane, nice pictures , great exhaust

Kind Regards

Andy
Thanks Andy,

The exhaust is made of a large diameter heat-shrink tube that was shrunk around a mandrel made of epoxy putty. The heat-shrink is removed from the mandrel by cutting a seam with a sharp blade, then glued back together again with cyano glue. After fitting and trimming the piece, it was painted with artist oil paint.

I can post some photos to better illustrate the process if anybody is interested?
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Old Sep 17, 2014, 04:28 PM
I just want to go fly!
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United States, MD, Towson
Joined Aug 2012
2,428 Posts
very nice!
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Old Sep 26, 2014, 11:18 PM
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Joined Feb 2013
493 Posts
It looks like it might be windy Saturday so the Stearman is one of the planes I'll fly thanks to the way she handles winds, should be a good day.
Jeff………..
had gusts over 17mph, it calmed down where the gusts where 13mph and I flew one plane then quit while I was ahead, just to dicy.

Jeff………..
Flew five batteries today after adding 3/4oz and more down elevator trim which really made her a little more manageable and fun to fly.
I have a total of 6oz of total added weight which I hate every once of it.
Jeff……….
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Last edited by SeeMeDo; Oct 02, 2014 at 10:30 PM.
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