Ralphtsp's blog View Details
Posted by Ralphtsp | Sep 04, 2016 @ 09:11 PM | 4,879 Views
Look at the crazy big wingspan on this thing.
Posted by Ralphtsp | Sep 04, 2016 @ 07:06 PM | 4,886 Views
A friend snapped this great photo right before the first flight of the morning with the Gentle Lady.
Posted by Ralphtsp | Sep 04, 2016 @ 04:13 PM | 4,816 Views
Just started the outer wing sections yesterday and now have the second one close to taking off the board.
Posted by Ralphtsp | Sep 04, 2016 @ 03:09 PM | 4,852 Views
Just started the outer wing sections yesterday and now have the second one close to taking off the board.
Posted by Ralphtsp | Aug 14, 2016 @ 05:03 AM | 2,890 Views
The before picture. Unfortunately the yellow and red girl had a hard landing and will require a bit of repair work. I may reapply the covering at the same time. It is thirty years old by the way.
Posted by Ralphtsp | Jul 31, 2016 @ 05:28 AM | 3,322 Views
New Gentle Lady.
Posted by Ralphtsp | Feb 25, 2016 @ 06:44 AM | 3,813 Views
Well this Radian can fly!! Check the telemetry screne from my flight. The max and ground level altitude are in the second row, just in case you can't see it. Sorry I am going to brag on this day for a while. I even got into a cloud at one point, that was a little scary.
Posted by Ralphtsp | Feb 18, 2016 @ 08:01 AM | 4,296 Views
The maiden flight was yesterday in slightly beeezy conditions, not perfect but it was a very pretty day here in Texas. After all the work doing these mods I will admit I was a little nervous about how things would go. With some trepidation I made the first toss into a slight breeze and it flew away until I accidentally hit my motor kill switch, something had to go wrong, after figuring out why there was no power the rest of the flight went great. I had gotten some good advice to start out a little nose heavy and work my way back to my target for the CG, it was good advice. The plane was really different fealing, much more sensitive to control inputs. The nose heavyness was noticeable so I brought her back and moved the 1300mah battery back fully into the compartment. The next flight went a little better, for the wind conditions. Overall the day was great and I feel all the work was a huge success. I wanted to move my Radian up a notch in the required skill level and performance characteristics, it really exceeded my expectations. Thanks Paul Naton for some great ideas. Your CG and decalage changes made some nice improvements. If you have read all my ramblings here I hope it has helped you. Thanks for looking. Please ask me questions if you have them, I would love to learn more if you have suggestions too.
Posted by Ralphtsp | Feb 16, 2016 @ 11:31 AM | 3,840 Views
After waiting for servos to arrive, and getting them installed, I am finally getting to go flying again. All is new except the motor and esc, so this will be a maiden flight for sure. Wish me luck.
Posted by Ralphtsp | Feb 04, 2016 @ 12:12 PM | 5,517 Views
Here are some mods that I am doing to my Radian. Actually it is almost a complete rebuild, new fusilage, wings, stab, and servos. Some of the mods are my ideas, but most are someone else's brainwork. Paul Naton for one. Below is a list of what I have done so far. Hopefully I will move this Radian from a beginner to an intermediate level flyer.
1. Reinforced the elevator at the narrow portion, with pushrod wire.
2. Mounted the the elevator arm inward about one half inch closer to the centerline.
3. Sanded the rough spots and mold marks on the wings with 400 grit sandpaper.
4. Reinforced the fuselage length with the fiberglass stiffner from my last fuselage. After cleaning the stiffner, I glued and taped it to the bottom of new fuselage.
5. Added a carbon fiber rod to the leading edge of the vertical stabilizer. I ran it down into tail boom and epoxied in place.
6. Changed the decalage angle by raising the front edge of the horizontal stablizer up 4mm. (per Paul Naton instructions)
7. Filled any dents and holes in both fuselage and wings with Dap "Fast' n Final" lightweight spackling compound.
8. Painted the wings and fuselage with Rust-Oleum Fluorescent paints in the crazy watermelon scheme.
Future plans:
9. Add new Digital Servos. (Hitech 5065mg)
10. Remount electronics.
11. Move the CG back to 3 inches (76mm) behind the leading edge of the wing.
12. Replace the prop with a 10x8 aero=naut CAM carbon prop.
13. Cover tail boom with chrome...Continue Reading
Posted by Ralphtsp | Jan 19, 2016 @ 06:26 PM | 4,750 Views
Yesterday's thermal at the park near my house was something of an anomaly, at least it doesn't happen to me there very often. Olson Meadows park is surrounded by trees and down in the bottoms along Brushy Creek. A beautiful spot that doesn't get to much activity besides the running trail that goes through the length of the park. Sometimes I can catch some lift in the winds going over the trees, but a true high thermal eludes me most trips. Don't get me wrong it is a nice place for electric powered planes and they keep it well maintained, short grass all the time. But yesterday on my last battery the slight breeze dropped to nothing and my Radian just didn't want to come down. It wasn't an up and down, up and down flight, just a gentle climb to the top and stayed there. My guess, from past flights with an altimeter on board, puts the max elevation at maybe 1100 or 1200 ft. . I was able to stay at altitude for about 30 minutes with a motor run time of only1:17. Eventually I lost the lift as I circled around and came back to earth smiling from ear to ear. This is why I love gliders, now I just need to have someone to fly with. Let's get together and fly.
Posted by Ralphtsp | Sep 17, 2014 @ 08:40 AM | 4,398 Views
A good friend gave me an Ventus 2.5m motor glider kit awhile back. I worked on it, saw some reviews, read the blogs and got a little skeptical about it's flying characteristics. I also had some problems with the build. It hung on the wall for quite a long time unflown. Eventually I had a couple ideas for fixing the problems that stumped me and got it ready to maiden. It came in at 34.5 oz. (without the battery) and balanced perfectly with a 1300mah (cg at 47mm). Well yesterday was the day. With more than a little doubt, we tossed it first thing. It flew good, really good. It looked cool in the air and handled nicely. It took more attention than my Radian to keep it level and moving straight, challenging but in a nice way. So now I am very excited about this new type of glider in my arsenal and can't wait to get it in the sky again. It is just a guess now, but I think it might handle a little more wind than the Radian. I still have a bug to work out with the spinner, but it should be an easy fix. If you're interested I'll keep you posted about the next flight.
Posted by Ralphtsp | Feb 13, 2014 @ 01:04 PM | 5,474 Views


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Well RC pilots I have a question for you: Why is flying RC planes better than real planes?...... Because you can make a really stupid mistake flying and walk away from it.

Case in point is my last flight this Saturday. My son, a friend, and I were at a park near our house last Saturday to hit baseballs and fly my Radian. While they were throwing the ball around I was going to get a quick flight in. (wait for it..) I assembled the Radian, did a quick range test and was off. (wait) I walked out into the field to launch, it was a nice day with just a few gusts of wind. I hand launched the plane into the wind, and as I throttled up about half way the plane got lifted nose up by a gust.(yes it's coming) I throttled up a little more and gave some down elevator. (here it is) And before I could blink the Radian, now at about 20 feet, did a quick loop and hit the ground at high speed nose first. The impact of the crash left me with a pile of foam pieces that did not resemble a plane. The one word expression of my frustration echoed around the park unfortunetly, and I heard a jogger say "I guess he's gonna have to buy a new one of those".

After thorough crash site investigation and collection of all the parts I discovered that the incident was caused by the most common of variables. PILOT ERROR! Yes I had betrayed the trust my new Radian had given me and made a chain of mistakes.
...Continue Reading