Espritmodel.com Telemetry Radio
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Old Dec 27, 2011, 09:18 AM
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Kangaman's Avatar
North Hollywood
Joined Jun 2006
256 Posts
Alpea 41,
I am part of that crazy troupe that flies the F22 combat and the Basin (Apollo 11 Field)
We fly the same size plane and motor setup. Make it a fairly even match

We have a blast - - It is about a 74% size of the Tomhe plan.

Paul
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Old Dec 27, 2011, 09:49 AM
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alpea 41's Avatar
United States, CA, Chino
Joined Oct 2007
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Yeah Paul I remember you. I'm the guy with the young son that make it to Sepulvada 2 or 3 times a year for E events.
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Old Dec 27, 2011, 11:08 PM
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Kangaman, what motor & prop are you using with your 74% sized plane?

I've cut one out with an 18" wingspan and am suddenly panicking because I was planning to use and Emax 2800 KV motor with a 6 x 4 or 7 x 4 prop, and the prop slot is looking REALLY big compared to the wing area. A smaller prop would require a smaller slot, but I'm not sure a smaller prop would give me enough thrust.

Anxious to know what you use and what WORKS!
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Old Dec 27, 2011, 11:48 PM
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alpea 41's Avatar
United States, CA, Chino
Joined Oct 2007
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This thread has the right motor for a 18" w. s. minni
http://www.rcgroups.com/forums/showthread.php?t=795691
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Old Dec 28, 2011, 08:24 AM
SARG5
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10 Miles north of Russell, Ks. on US281 hy
Joined Oct 2009
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QUESTION;
The way you have your servo hooked up to the Elv. and Ail. HOW DOES THIS WORK??
Please explain.
I have not cut my Ail. in as yet, ready to cut!! I also have set up my Rudder control.
I am thinking about this set up.
Tieing the Elv. together on ONE SERVO.
Rudder ??? may have to use two servo for Rudder, Mount them on each rudder.
Ail. Work them as standard ail. set up.
WHAT SAY YOU
SARG5
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Old Dec 28, 2011, 08:26 AM
SARG5
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10 Miles north of Russell, Ks. on US281 hy
Joined Oct 2009
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PS to Post 2465
I have the www. 6mm 38 in wing plan, QUICK BUILD. out of 1/2 in. pink foam.

sarg5
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Old Dec 28, 2011, 08:39 AM
SARG5
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10 Miles north of Russell, Ks. on US281 hy
Joined Oct 2009
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SARG5 from Kansas here.
I am building the www.6mm , 38 in. wing . 1/2 pink foam.
QUESTION.
Control set up. Like the looks of your set up. HOW YOU DO your set up??
I have cut in Rudders, Cut in Elv. ready to cut in Ail.???
I am THINKING
Set up Elv. with one servo, standard RC set up.
Set up Ail. as Standard RC set up
Rudder?? Use two servo, with splitter OR WHAT
New to this
My Second scratch build. The #1 is F-16 from 6mm QUICK BUILD, still on the table
WHAT SAY YOU
SARG5
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Old Dec 28, 2011, 10:32 AM
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alpea 41's Avatar
United States, CA, Chino
Joined Oct 2007
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I say ailerons are not neccesary... Elevons and rudders are enough. But I'll know more in a few days cuz Dennis is making his next normal sized one with ailerons. Then we'll be able to compare them.
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Old Dec 28, 2011, 10:43 AM
Pusher jets rule!
crxmanpat's Avatar
Mesa, AZ
Joined Jan 2006
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I like mine with ailerons, better roll rate.

You can do it one of two ways:

1 - Run a control wire from the servo to the aileron, then from the aileron to the elevon.

2 - Run 2 control wires from the servo, one to the aileron and one to the elevon. If you do this, you'll need to add a support to the wire to the elevon as it winds up being very long and will flex. What I do is glue in a spare servo control horn in the intake side right where the prop canyon is, then run the control rod through it.

First 2 pics are method 1, 3rd pic is method 2. On method 2, I'd move the servo further forward though, and add the support as shown in pic 4.

Pat
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Old Dec 28, 2011, 12:22 PM
SARG5
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10 Miles north of Russell, Ks. on US281 hy
Joined Oct 2009
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HELLO Crxmanpat
????????????????????????????????
OK???????????
If I have your set up, and just want elv. HOW I DO THAT????????????????????
I have the JR XP 8103 tx.
One more thing. I AM GETTING OLD 77, Not as quick as I used to be. With your set up
looks like things may happen VERY QUICK.
I need it slow and steady.
Thank you for your help
SARG5
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Old Dec 28, 2011, 02:52 PM
Pusher jets rule!
crxmanpat's Avatar
Mesa, AZ
Joined Jan 2006
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SARG5,

Do you mean you want both ailerons and standard elevator? If so, that will require at least one more servo dedicated solely to elevator, with the other 2 operating the ailerons. And then you will need to join your elevator pieces together.

For what it's worth, I'd say avoid all the trouble and just run them all off the 2 servos. You can dial down the throws on low rates, and up them a little on high rates just in case. Believe it or not, this thing can be very docile if you want it to be. They key is to keep the throttle down.

For the 8103, plug the right hand servo into Aileron, the left hand servo into Elevator, and set the wing type to Delta. If your switches are still set at factory norms, then all surfaces should move in the correct direction right off the bat. If they don't, just play around with the switch reversing until everything is correct.

Using the standard 2212-6 motor, you can fly this thing at half throttle no problem. Then once you get used to it, you can fly faster.

Pat
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Old Dec 28, 2011, 03:26 PM
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Chicago, Illinois
Joined Nov 2005
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Sarg,
picture # 3 ( bottom left of crxmanpat) shows the location of the servo. you want to use two servos total with a elevon mixing control if your radio doesn't have the mixing function. Install the servos infront of the motor. be sure to install the servos in the same direction as shown in picture #1 or 3. the only difrerence is your only going to use one push/pull rod on each servo that connects to the elevator/aileron control horns. your elevator should be two pieces as it needs to operate as the ailerons too.
Hope that helps.
I started to cut one last night. I'll post some pics and tips as soon as i can locate my camera cable.

Best
Richard
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Old Dec 28, 2011, 03:44 PM
Pusher jets rule!
crxmanpat's Avatar
Mesa, AZ
Joined Jan 2006
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He's got a JR XP8103 and it mixes (by using a wing type of "Delta"). I used to have that radio, but moved up to a 9303 to have more model memory.

Pat
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Old Dec 29, 2011, 03:02 PM
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gatorlynch's Avatar
Coral Springs, FL
Joined Mar 2010
407 Posts
4mm coroplast build

I prefer to build out of 4mm Coroplast versus foam, as I find it much more "bounce resistant". I had this plane on my list for awhile and finally found the time to put one together.

She is built per the original plans, with the addition of a K-F step on top of the wing. The top flutes run sideways, so it also serves as a spar.

As most of my coro planes, she was tail heavy - so the battery is located well forward, just under the canopy.

AUW is 30 oz.
Motor is a 2826-6 2200 kv
Prop is a 6X4 APC

Watt meter shows 28A/320W (sustained, not peak) using a 1600mah/3S.

I started off with a 7X5, but that was too much for this motor. She will still go vertical on the 6X4, and is quick enough.

All in all, I'm very pleased. Thanks tomhe!

F-22 Maiden - Tomhe 4mm Coroplast (2 min 41 sec)


Tomhe F-22 day 2 (1 min 23 sec)
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Old Dec 29, 2011, 10:47 PM
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Dennis Everett's Avatar
United States, CA, Ontario
Joined Mar 2002
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I have my 4th one done , tried rudders on this one , 6 mm depron , rtf weight 13.9 oz.....
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