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Sep 15, 2002, 10:21 PM
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Santa Clara, CA
Joined Sep 2001
697 Posts
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Jim Hendry's A-10 with 2 GWS EDF-50
This morning was beautiful at Rancho San Antonio Park in California and I saw Jim Hendry's A-10. It is nicely done with a scaled gun on the front of the plane. I call Jim "Foam Master" because he is one the most prolific electric RC planes builder arond here. The A-10 flew great with just 1/2 throttle and it was very encouraging to all of us here to see it crusie around the flying field with those 2 GWS EDF-50. The specification is given below.
Construction Materials: Blue foam and depron Wing Span: 34 inch Wing Area: 155 square inch Wing Chord: 5.0 inch Wing Loading: 14.0 oz/ square ft Length: 27 inch AUW: 13.7 oz EDF: GWS EDF-50 x2 Receiver: GWS R4N Servos: 2 GWS Pico BB for Ailerons, and 1 GWS Pico BB for Elevator ESC: FMA Mini 20 Batteries: 7-cell Sanyo AAA 720 mAh Ni-Mh It was built to scale except that the middle section of the wing was un-intentionally lengthened by 4 inches which might have helped to have better fly characteristics.  Attached is a picture of Jim Hendry's A-10 Perry AeroMicro Source of Electric RC Supplies http://www.AeroMicro.com |
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Last edited by GoEFlight; Sep 15, 2002 at 10:50 PM.
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Sep 15, 2002, 10:31 PM
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Santa Clara, CA
Joined Sep 2001
697 Posts
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New GWS EDF-50 Fan Rotors.
Attached picture is the new GWS EDF-50 Fan Rotors. They are EP2030x3 and EP2030x5. Yon can ge them from the following URL.
http://www.aeromicro.com/Catalog/du...49_products.htm The testing data from GWS can be found at http://www.aeromicro.com/EDF50TestingData1.htm or http://www.gws.com.tw We are going to try the new rotors to see the performance differences.  Perry AeroMicro Source of lectric RC Supplies http://www.aeromicro.com |
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Sep 15, 2002, 10:39 PM
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Santa Clara, CA
Joined Sep 2001
697 Posts
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Inlet Ring and Exhaust Cone for GWS EDF-50
Attached picture is the Inlet Ring and Exhaust Cone for GWS EDF-50. They are a modified version designed by Dennis De Fevere. You can find the details at the following URL.
http://www.aeromicro.com/dennisdefevere_EDF50.htm They will be available soon. Also, a super light weight Nacelle is under development. I will post the picture of that once the first sample is available. Perry AeroMicro Source of Electric RC Supplies http://www.aeromicro.com |
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Last edited by GoEFlight; Sep 19, 2002 at 02:05 AM.
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Sep 15, 2002, 10:41 PM
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Forney, TX
Joined Mar 2002
15,106 Posts
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Sweet looking! But at 14 ounces it's going to fly like a brick on EDF 50's. I've flown an 8 ounce plane with twin 50's and performance was unimpressive even at that much lighter weight. He needs to put the new EDF-70's (or is it 75?) on there. That would be a nice setup!
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Sep 15, 2002, 11:03 PM
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Santa Clara, CA
Joined Sep 2001
697 Posts
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Hello Tres Wright:
It was my mistake and the AUW is 13.7 oz. You ought to see Jim's A-10 fly to belive that I might have to take a video sometime next week. Also, I've just receive two sets of GWS EDF-75 and they look cool as shown in the following picture. Perry AeroMicro Source of Electric RC Supplies http://www.aeromicro.com |
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Sep 15, 2002, 11:03 PM
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Forney, TX
Joined Mar 2002
15,106 Posts
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==You ought to see Jim's A-10 fly to belive ==
Really? Wow, that's great! I couldn't get my plane to fly that well on 2 fans, but it was only 24" w.s. Boomer has had fits trying to get them to fly his scratchbuilts too. I'm glad to see you're going to be carrying the cones/rings, I read stats on those quite some time ago and they really make the little 50's sing! |
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Last edited by Tres Wright; Sep 15, 2002 at 11:06 PM.
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Sep 15, 2002, 11:38 PM
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Oxford, MS
Joined Apr 2002
1,134 Posts
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Wow someone has finally gotten things right. Making different rotors for the same fan is what I think everyone should do. Thats a nice A-10 too sorry for the GWS praise but the ducted fan gas guys have been able to have different pitch/bladed rotors and now finally GWS has it for electric. I think that sometimes people do too much weight vs thrust calculations. I have a GWS Zero flying on a geared speed 400. It's a lot heavier than it should be and still flies great.
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Sep 16, 2002, 12:46 AM
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Boone, Iowa, United States
Joined Feb 2002
288 Posts
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kit or plan
Is this plane going to become a kit or is there a way to get plans. The plane looks awesome. Glad to hear it flys good. Looking at the data for the 5 blade it should even fly better.
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Sep 16, 2002, 03:20 AM
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NE Ohio
Joined Jun 2001
3,311 Posts
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A 13.7 oz plane with less than 6 oz. of thrust??
You better use a slow motion camera for the videos. |
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Sep 16, 2002, 09:58 AM
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Fayetteville, GA
Joined Oct 2000
3,662 Posts
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Glenn's Lear weighs about 13 oz. and I had a blast flying it. Everyone has different expectations of what a "good" flying plane is...
Here's the video: http://www.koolflightsystems.com/video.htm |
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Last edited by Jeff Meyers; Sep 18, 2002 at 10:37 PM.
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Sep 16, 2002, 02:32 PM
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Hampshire, UK
Joined Jun 2002
2,804 Posts
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Just watched the video of the Lear. If I hadn't been told I wouldn't have guessed what was powering it. It sure performs well, I just love the sound of those 2 EDF's together
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Sep 18, 2002, 01:04 PM
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Santa Clara, CA
Joined Sep 2001
697 Posts
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I was at Rancho San Antonio Park in CA yesterday and forgot to bring my digital camera to take flight picture/vedio of the A-10. Anyway, it was a great flight of Jim's A-10. Will try it again this weekend.
The following picture us the first cut of the EDF-50 Nacelle and we are going to test it with EP2020x3, EP2030x3, and EP2030x5 fan rotors to compare the performance. Perry AeroMicro Source of Electric RC Supplies http://www.aeromicro.com |
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Last edited by GoEFlight; Sep 19, 2002 at 02:06 AM.
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Sep 18, 2002, 06:15 PM
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Orange County, CA
Joined Feb 2002
2,876 Posts
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Looking good!
Perry,
Thanks for sharing the photos. If this thing flies at all well and can be made for a reasonable price I think I know several people who would want one, me included. Jim has done a wonderful job crafting this plane, far beyond what I could ever manage. DNA, this plane may fly more like my Tipsy (3 oz thrust, 10 oz plane) than a Projeti, but for someone wanting a parkflyer this might fit the bill. I want to be able to fly my planes in small parks and fields. |
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Sep 19, 2002, 12:54 AM
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Santa Clara, CA
Joined Sep 2001
697 Posts
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One more picture from a different angle. The totla weight of inlet ring, nacelle, and tail cone is 4.0 grams (0.141 oz).
Perry AeroMicro Source of Electric RC Supplies http://www.aeromicro.com |
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Last edited by GoEFlight; Sep 19, 2002 at 02:06 AM.
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Sep 19, 2002, 08:52 AM
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Forney, TX
Joined Mar 2002
15,106 Posts
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That is a beautiful nacelle! And so light too! I definitely want to give those a try on my couple of fan powered planes. Any release date yet, or still in the prototype stage?
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