RE: PT 25 help
Phill, I've used iron-on covering every time with no problem. Built several PT25s. Have a good flight, Joel
Posted on: 8/28/2011 1:55 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=10690798

RE: 16th Annual Model Autogyro's Meet
Hello Jim, Just got back onto this forum, won't be able to get the fly-in this year. Have a good time. Joel
Posted on: 7/30/2011 2:47 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=10646858

RE: Annual Morris R/C AutoGyro Get Together!
Hello Bernie, I'll be looking forward to fly with you next August. I'm flying every weekend during the winter here In Montana. Joel
Posted on: 2/28/2010 4:27 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=9543313

RE: Flying Balsa .074 - electric
Try talking to Mark Or John at www.flyingbalsa.com it's their design, they were at Morris last September. They should be able to help you with an electric version. Or you can purchase a PT profile from them that also flies quite nicely on electric power. Good luck, Joel
Posted on: 3/9/2009 10:49 AM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=8558925

RE: Gyro with a Heli Head?
Hello Gravity, For all the money spent on repairing helicopters as well as the origional purchase expense you might be ahead to build a PT25 or a PTprofile. If you really have a desire to fly an autogyro try going to flyingbalsa.com for a very good gyro experience at a far more reasonable price than Arizona autogyro Co. Give them a try, the price is right. Good luck, Joel
Posted on: 2/26/2009 7:27 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=8522123

RE: 2009 Summer Gyro meet
Hello Jim, Gary, and Mike, Seems like Muncie would be a better place for us because we could be sure of the conditions we have all ready used in the past. If I drive from here in Montana I'd like to be sure that was worth the time and money! Muncie can be a sure thing for us if it does get on the schedule. Getting together with you guys is worth the trip if the cost of the fuel dosen't rise beyond reason. Your friend, Joel
Posted on: 9/24/2008 11:34 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=7988249

RE: 2009 Summer Gyro meet
Hello Jim, June or July are OK with me. Every year we have it as late as September we have to deal with bad weather that is a result of the yearly hurricane season. Hurricanes bring tornados as well as rain. The kids will be out of school in June and July, that may bring more new blood into our little nitch of the RC hobby. Joel
Posted on: 9/14/2008 3:31 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=7953494

RE: Would this work?
Hello Jim and Mike, Yes the Whistler will work well, but there are no plans available as far as I know. I guess a guy could make his own plans from the photo. The design will fill the requirement of no servos tilting the head, but like I say, we don't have a set of plans. Joel
Posted on: 8/10/2008 9:59 AM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=7829399

RE: Would this work?
Hello Mike, A three bladed rotor with rudder and elevator might possibly work but not a two bladed rotor. You will possibly need a small wing as well. Good luck, Joel
Posted on: 8/9/2008 11:12 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=7828444

RE: Morris 2008
Hello Gyronuts, We will be there on the third of September, Bernie, if you need help to mow the grass on the field call me at the Morris Inn ( the old Holiday Inn), or call me here in Montana before Labor Day. We leave for Morris on the first. Hope we have a lot of gyro fliers in spite of the fuel prices! Joel
Posted on: 8/3/2008 4:41 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=7803985

RE: Morris 2008
Hello Bernie, Jim and Bill, It's still a long time till September and who knows what the price of fuel will be by then? I've got enough fuel for my gyros but I'm not sure what the price of fuel for the car might be by then. We need to drive 1600 miles each direction. If the price of gas goes beyond $5 per gallon I'm not sure if we can afford the trip? I was planning on staying in the Holiday Inn Express, but haven't made the reservation yet. The Fly-in in Morris would be perhaps the most fun a Gyronut could have and I plan to be there if we can find a way to make the trip. Hope to see all of you in September, Your Buddy, Joel
Posted on: 6/17/2008 10:15 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=7631362

RE: pt profile or 25?
Check with flyingbalsa.com it's their design
Posted on: 4/20/2008 5:50 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=7397366

RE: PT-25 Help
Roger, Sounds like a good idea to lengthen the pitch control push rod, I'm sure it will help. You should check to see if your pitch pushrod is flexing with radio turned on and a fresh battery. Try to simulate the loads your rotor disc is seeing in flight, if you see any flexing of the pushrod while simulating the airloads the flex may allow the rotor disc to pitch back and cause the gyro to climb. Most people who fly autogyros are flying alone in their own world. I've been flying Gyros in my own club for six years now and I'm the only gyronut in our club. I fly every weekend and intertain our club members but can't convince anyone else to try it. I'm just the strange guy with all the autogyros. I've found there are two other guys here in Montana that have the gyro addiction but they live about four hours travel from here in Darby where I live. I hope you find another guy where you live who might like to try it, I'm having too much fun to change. Keep making small changes until you get it flying the way you feel comfortable. Joel
Posted on: 4/9/2008 10:37 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=7359042

RE: PT-25 Help
Roger, Looking over the photos your PT25 looks very nice. I can't see anything that might be causing the problem from looking at your photos. My PT25 flew like yours as far as the constant climbing tendency. The PT25 was intended to be used with a .25 engine from the start because I think it was meant to be a trainer. The thing I didn't like about it was the tendency to always climb when power was added. My preference was to fly faster because I tend to want to do more interesting manuvers than just flying around the pattern. These PT25's are doing what they were designed to do as a training autogyro to give new people a chance to become autogyro pilots. In the past when autogyros were used before the helicopter was invented they flew very much like the PT25 does now. By this I mean, they got the rotor spinning up to autorotation, took off then added enough throttle to climb to altitude needed then backed off the throttle to decend when they needed to. We in our model hobby have much more power than we really need just to take off and fly. One of the things I did to make myself happy so that I could fly faster and be more aggresive as in sport plane type flying was to build another PT25 of my own design that would be more fun and do some aerobatic type flying. I built another PT type gyro that would fly fast and be very manuverable. I moved the mast a little aft, used 2 inch aerobalsa blades instead of the 2 3/8" blades because they provided less lift, then shortened the blades as well since the mast was moved aft a little. The last thing I did was provide more rudder area and increase the rudder throw till it would move 45 degrees left or right. I found that by making these changes, If I provided left or right rotor tilt of at least 15 degrees while holding full rudder in the same direction, I could do a snap roll with no problem providing I had enough airspeed and altitude to recover. You changed the servo on your left and right tilt to a HS645 and left the HS225 on the fore and aft tilt. I think I would possibly change the HS225 on the fore and aft tilt to a stronger servo to keep the drag and air loads from allowing the rotor disc to possibly tilt aft and cause the gyro to climb without being commanded to do so. With all the muscle the stronger servos provide, your pushrods could possibly flex and possibly allow unintended movement of the rotor pitch angle. You might consider using a stiffer push rod for the pitch control? I wonder if you have changed the length of your push rod for your pitch control? I also wonder if you tried adding some weight to the nose to keep her from climbing so much? Don't give up, it's too much fun, Joel
Posted on: 4/9/2008 9:28 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=7358641

RE: PT-25 Help
Roger, Your PT25 is most likely tail heavy since the fuselage sides are made from 3/16 balsa. Mine did the same thing. Try adding some lead to the nose and or adjust the push rod to give yourself more more forward tilt of your rotors. I'm sure you can find the right amount of weight added to the nose to keep the nose down at half throttle. These autogyros of every design often require adjustments to hang angle, rotor tilt angle, down thrust etc. It is possible your servo that controls rotor for and aft tilt is not strong enough to hold the rotor in one position with the airloads it sees as the gyro increases in airspeed. Make sure your servos have sufficent torque to change the rotor tilt as the gyro increases in airspeed. If we had a photo or two of your PT we might be able to see something obvious that we could talk about. Never give up, Joel
Posted on: 4/8/2008 8:46 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=7353578

RE: pt profile or 25?
Chris, Use the .15 on the Profile if you want to. Joel
Posted on: 4/7/2008 9:29 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=7348697

RE: pt profile or 25?
Hello Chris, The PT25 is a better choice if you want to fly with an engine such as the OS .25 or say a Magnum .28. The profile PT would be a better choice if you want to go electric. Regards, Joel
Posted on: 4/7/2008 2:30 AM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=7344658

RE: gyrobee or Pitcairn "Cabin"
Chris, Don't bother with Arizona Autogyro Co. they have poor customer support, perhaps none. Purchase a PT25 from flyingbalsa.com it's a very good product with very good customer support that will fly excelent with a .25 engine. If you are already flying a high wing aircraft the PT25 should be easy to learn to fly autogyro's on. Make sure you have your rotor turning up to autorotation speed before you attempt to lift off into the wind and you should have a good experience. Regards, Joel
Posted on: 4/6/2008 11:16 AM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=7340834

RE: Beginner need suggestion
Hello Wile, I had one, don't waste your money. Very poor construction and not very good to learn on. If you want a good kit go to FlyingBalsa.com and get one of their kits. They have two very good kits that go together easily and fly very good. There is not a better kit out there that flies as good for the money. They can give you a good kit for gas or electric that you won't be disappointed with. Joel
Posted on: 11/17/2007 2:20 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=6636840

RE: Gyro PG2000 Century....
try the helecopter forum!!
Posted on: 11/16/2007 3:03 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=6633144

RE: Profile PT 25
Joseph, The PT25 needs no shims, It will leap off the ground with no problem. Joel
Posted on: 9/27/2007 1:58 AM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=6419274

RE: Autogyro Fun Fly is getting close!
Hello Mike, Thankyou for hosting this years Fun-fly. I hope you bring plenty of your good blades so we can stock up for the coming year. We will be leaving Montana Monday and should be in Morris Wednesday evening. We're bringing four Gyros if we can fit them into our Subaru. I hope we have a lot of fliers as well as non fliers who want to learn more about our autogyros. See you on Friday, Joel
Posted on: 9/2/2007 11:42 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=6320223

RE: Prerotator devices
Hello Phil and Mickey, I won't roll in the mud with you two any more. It's obvious we have a different opinion that will not be changed. Perhaps the two of you will show up at one of our yearly Fly-ins and demonstrate your superior flying machines for all to see. Until then I'll have to keep my opinion. They say you should never roll in the mud with a pig, because the pig likes it. See you in September Joel
Posted on: 4/17/2007 6:19 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=5730947

RE: Prerotator devices
hello Phil, Sure is keen! I'm sure you'll bring it to Morris in September to show us how keen it is. I'd sure like to see how it flies better than our direct control machines! Joel
Posted on: 4/17/2007 10:50 AM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=5729025

RE: Prerotator devices
Hello Mickey, You sure seem to have a tender spot!! Why don't you and all your expertise come to Morris next September and show us how yours is better than ours. See you in September! Joel
Posted on: 4/16/2007 10:56 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=5727275

RE: Prerotator devices
Hello Mark, I can't agree with you more. A good spin of the rotor and taxi into the wind is all that is needed to get airborn. We could sit around and dream up some method to prespin our rotors so that we could be like Mickey but it is simply not needed or required with the AeroBalsa blades in use today, I've never had any trouble getting off the ground. If we wanted a helicopter we could go out and get one at any hobby store. Since these are autogyros and are more fun than any helicopter and fly much better, why should we try to be like a helicopter. I've watched many, many helicopters at model flying fields and for the most part unless the pilot is a real pro all they do is hover, hover, hover then wind up in a ball of twisted parts that are very expensive to replace. The PT series you and John provide all lift off the ground with very little roll so don't mess around by adding more weight by trying to be like Mickey. See you in September, Joel
Posted on: 4/16/2007 7:10 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=5725969

RE: PTGyro Video
Hello Jim and Phil, In my opinion the PT Gyro Can be made to be very responsive perhaps just as responsive as Mickey's designs if a few changes are made to the PT's. My own version of the PT25 is extremely responsive and will do a snap roll, loop, barrel roll, and extremely tight spiral. It still won't fly inverted and may never because I'm not that brave or stupid. All a person needs to do is increase the pitch and roll deflection to the rotor head and increase the rudder area and deflection to about 45 degrees. I also moved the rotor pivot point aft about 3/4 inch which required the rotors to be shortened as well. The rotors now rotate faster besause I'm using a 2" blade instead of the 2 3/8" blade. You're right Jim, the PT was designed as a primary trainer and is perhaps the best trainer on the market in spite of the lack of commercial advertisement by the guys from Tennessee. The PT series can be made more responsive and much more fun with a few changes as I indicated above once a person is confident and experienced with the autogyro and the different way it handels compared to fixed wing trainers. Joel
Posted on: 4/16/2007 1:41 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=5724464

RE: Whistler's Cousin
Hello Jim, Looks good! I wonder if that .91 will be too heavy. Mine has a Tower .46 on it. What kind of blades are you going to use? You may need to move the gear box forward to get the hang angle right if you stay with the .91. Hope that new hip is working out for you. Joel
Posted on: 4/7/2007 9:29 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=5681068

Twins
From a twin rotor design that flew good to a single rotor design that flew better.
Posted on: 3/19/2007 10:39 AM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=5583730

RE: Snap Roll? Why not?
Hello Guys, Jim, Bill and Phill, I wish I could be there in Florida with you guys but it's a long way from Montana, this time of year. I hope you have a great time and I hope you have a lot of fliers and perspective fliers attend the Spring Hill event. Too bad it can't be held on the weekend so that working people could attend. Have a good time and lots of good flights and good weather. Maybe some of the southern fliers could come to Morris this September to help make the event a success. We had a wonderfull time last September with all the gyronuts that were able to make it for the weekend. Good Flying and good weather, Joel
Posted on: 3/7/2007 11:31 PM by Author "JoelW" in the forum "AutoGyros"
http://www.rcuniverse.com/forum/fb.asp?m=5528239