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Pat Tritle's New Stinson SR-10 Reliant

Old 04-13-2011, 07:41 PM
  #26  
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Originally Posted by E-Challenged View Post
Me too, My build is the opposite of instant gratification? That's why I bought the Park Zone foamy SR-10 as a trainer, with flaps. I would recommend the PZ Reliant to anyone who has basic tail dragger flying skills, it's a cat and does multiole loops, rolls and inverted,

You saying it has nine lives? LOL
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Old 04-14-2011, 03:34 PM
  #27  
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This one that I'm thinking seriously about putting together. Enjoying the thread.
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Old 04-21-2011, 04:41 AM
  #28  
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Originally Posted by dumo01 View Post
You saying it has nine lives? LOL

Apparently there is an automatic censor on this forum that wont allow p _ _ _ y cat.

Here's are some backyard pics shot minutes ago. Control surfaces all hinged and flopping freely. Next big challenge is adding dark blue wiing top and bottom and fuselage trim color, adding aileron push rods, and extensive Pepsi-Cola graphics from Callie Graphics.
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Old 05-08-2011, 07:03 PM
  #29  
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Default Got Graphics

Installing graphics went well except for when large model slid backwards off narrow work bench cracking rudder trailing edge. I had to repair fractures while trying not to mess up Pdpsi bottle and tail number graphics. Work on wheel pants and control linkage and RC system adjustments remains before maiden attempt.
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Old 05-08-2011, 08:26 PM
  #30  
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Originally Posted by E-Challenged View Post
Installing graphics went well except for when large model slid backwards off narrow work bench cracking rudder trailing edge. I had to repair fractures while trying not to mess up Pdpsi bottle and tail number graphics. Work on wheel pants and control linkage and RC system adjustments remains before maiden attempt.
The Stintson looks great!
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Old 05-09-2011, 01:01 AM
  #31  
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that's an awesome looking plane nice job. Thanks,Chris
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Old 05-10-2011, 05:07 PM
  #32  
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Thanks, we all like an attaboy.
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Old 06-05-2011, 06:39 AM
  #33  
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I decided that the tiny Super Tiger .10 outrunner and 2S lipo weren't going to have enough power to haul the 49 ounce model into the blue yonder. I took the Scorpion 3914-1040 motor and 55 amp speed control out of my now retired Peashooter and installed them and a Park BEC into the Reliant. I had to build a battery box for the 2200mah 3S 30C lipo poking through the firewall and into the ring cowl. The model is now a little nose heavy instead of tail heavy with the much heavier motor speed control and lipo pack mounted well forward. With these changes the model now weighs 52 ounces. I now have around 100 watts per pound and expect lively performance but hope that landings will be fairly gentle with positionable flaps and hope that cruise speeds will still be scale-like.
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Old 06-05-2011, 07:11 AM
  #34  
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That should be more than enough. Good luck on the maiden. How much wing area do you have? Looks like it should do fine at that weight. John.
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Old 06-05-2011, 07:20 AM
  #35  
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I'll use my Scorpion 2215-22, my Spektrum AR6000 reciever and a Park BEC or speed control with built in switching type BEC.
Of course I will modify the cabin and windshield to the SR-7/8 configuration. I will have to add a detailed instrument panel, and other scale details.








Wow, very very nice build Use a better full range receiver than the 2.4 AR6000, like a AR6200 or similar, the AR6000 is not a full range receiver and is prone to Masking and Short Range, they are ok for a cheapy parkflier, but i would use a better full range receiver for your build, its just cheap insurance, just my 2 cents worth, Take care, Chellie
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Old 06-05-2011, 08:19 AM
  #36  
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Chellie, are you stalking me?
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Old 06-05-2011, 08:41 AM
  #37  
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Originally Posted by jungmann1 View Post
Chellie, are you stalking me?
No, Not this week, Next week is Staking Jungmann1 Week LOL
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Old 06-05-2011, 08:58 AM
  #38  
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Ok, just checking! I thought it was next week but wasn't sure. See ya then! J.
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Old 06-05-2011, 04:48 PM
  #39  
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There is obsolete planning info is in my first post. My version has turned into a 3 lb serious scale model rather than a typical Pat Tritle floater. Wing area is 465 square inches, span is 56.8 inches, Model will probably fly a little fast and need to land with finesse. Will have to be careful not to fly too slow and keep power on while landing like the real thing,

Now I'm using an Optima 6 Lite receiver with my Eclipse 7 trasmitter converted to 2.4ghz with the Hitec Module. I'm using a Park BEC with the 55amp Scorpion speed control as insurance agaiinst "brownout" with the receiver and six HS-55 servos.

I am using the Eclipse 7 transmitter's "Land" mode with down elevator offset and flap trim knob programming for positionable flaps plugged into channel 6. I can't use differential ailerons with the Land mode setup so will use simple ailerons on a Y cable plugged into channel 1. I will also use aileron/rudder mix . This is the same setup as I'm using on my foamy PZ SR-10

Note: The Scorpion 2215-22 and 3S lipo would have enough power for a lightweight (30 ounce) version built like Pat's prototype, as would the Super Tiger .10 and 2S lipo that he used. My jheaviy detailed 52 ounce version would probably not be able to take off with either of the above motors or would be on the edge of stall/crash. The Scorpion 3014-1040 has enough thrust to go vertical. One of these days I'll build one of Pat's designs without adding anything.

Last edited by E-Challenged; 06-05-2011 at 05:25 PM. Reason: clarification
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Old 06-18-2011, 05:05 PM
  #40  
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Default It's Finally Ready for Maiden

Did taxi testing at OCRCC field last week, lifted off at 1/2 throttle. A little nose heavy, flipped it and damaged top of rudder. Have that fixed and final paint details done, getting up courage and waiting for calm morning air. Plan to maiden next week at OCMA field in Silverado Canyon. Here are latest pics:
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Old 06-22-2011, 10:14 PM
  #41  
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Default It Flies !!!

It maidened on a dark foggy morning at Black Starr Canyon/OCMA field. Was way nose-heavy despite balancing per plan. A buddy fed in up trim but ran out. I landed with up elevator and added some stick on weights to the stab. Next flight was lots better. No tendency to stall, Handled well with flaps at low airspeeds. Will need to change battery compartment to allow shifting 2200 mah 3S pack more rearward. Didn't get clear sharp flight pics. But it FLEW!!
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Last edited by E-Challenged; 06-22-2011 at 10:40 PM.
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Old 06-23-2011, 12:47 AM
  #42  
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Congrats on your Maiden flight, Glad things went well for you,take care, Chellie
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Old 06-23-2011, 02:34 AM
  #43  
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Very nice plane!!! Way to go!!
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Old 07-07-2011, 01:39 AM
  #44  
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I modified the battery pack mounting to allow moving it some 5 inches rearward which allowed removing lead stick-on tail weights. The plane now flies like it's supposed to and promises to be a real pleasure as I get more stick time. When you spend a year on a model, the fear factor about the maiden and trim flights gets pretty high. On the other hand, you can't get the same kind of thrill from an ARF model.
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Old 07-07-2011, 04:13 AM
  #45  
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Very nice plane Congrats on the maiden and follow up flights
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Old 11-24-2011, 08:42 PM
  #46  
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It crashed when right wing slid off tubes and folded up ending in a spiral dive. Bad front fuselage damage but it's going back together well. Will incorporate much more robust and less fiddly wing strut attachements a way to keep wings tight to fuselage. Models like this usually fly better for me when rebuilt, changes are made, and the newness is gone,. Happy Thanksgiving!!
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Old 12-15-2011, 10:53 AM
  #47  
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Just curious, I haven't used the new lightweight "Optima 6 Lite" is it pretty dependable?

Originally Posted by E-Challenged View Post
There is obsolete planning info is in my first post. My version has turned into a 3 lb serious scale model rather than a typical Pat Tritle floater. Wing area is 465 square inches, span is 56.8 inches, Model will probably fly a little fast and need to land with finesse. Will have to be careful not to fly too slow and keep power on while landing like the real thing,

Now I'm using an Optima 6 Lite receiver with my Eclipse 7 trasmitter converted to 2.4ghz with the Hitec Module. I'm using a Park BEC with the 55amp Scorpion speed control as insurance agaiinst "brownout" with the receiver and six HS-55 servos.

I am using the Eclipse 7 transmitter's "Land" mode with down elevator offset and flap trim knob programming for positionable flaps plugged into channel 6. I can't use differential ailerons with the Land mode setup so will use simple ailerons on a Y cable plugged into channel 1. I will also use aileron/rudder mix . This is the same setup as I'm using on my foamy PZ SR-10

Note: The Scorpion 2215-22 and 3S lipo would have enough power for a lightweight (30 ounce) version built like Pat's prototype, as would the Super Tiger .10 and 2S lipo that he used. My jheaviy detailed 52 ounce version would probably not be able to take off with either of the above motors or would be on the edge of stall/crash. The Scorpion 3014-1040 has enough thrust to go vertical. One of these days I'll build one of Pat's designs without adding anything.
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Old 12-16-2011, 07:27 PM
  #48  
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Just an absolutely gorgeous plane. SO sorry about the crash. Some of those photos - wow - thought I was looking at a real plane.

PLEASE go buy some Testors metalizer buffing aluminum paint (rattle can) and put it on your prop. They come out looking like polished aluminum, and would be perfect for your model.

You mentioned in your first post - "of course" you'll be changing the windshield to the earlier version. I happen to like both, (and the even earlier SR-6), but couldn't figure out why you'd say "of course". Do you really dislike the latest style that much? Just curious on your thoughts.
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Old 12-18-2011, 06:49 PM
  #49  
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Repairs are well underway. I built a couple of the Comet SR-7 kits as a kid and have always liked the more "gothic" look of the windsheild and cabin top structure of the SR-7 and 8 versions. The curved SR-9 and flattened SR-10 windshield/cabin top
just don't have the same appeal to me.

PS, the Hitec Optima lite receiver works well. I plan to use the SPC connection to power the receiver alone, and the Park BEC to power the servos. Hitec thinks that's the optimum setup for anti-brownout protection.
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Old 02-12-2012, 06:35 PM
  #50  
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Have wing structure damage repaired. Replacing upper streamlined landing gear structure and related fuselage structure with more substantial solid balsa to anchor wing strut connections to. Added wire to existing landing gear wire to make it stiffer/resistant to bending. Landing gear/wheelpant structure on Reliants and similar golden age models is vulnerable to hard landings and crash damage.

If I had built very light per Tritle's plans, instead of adding heavy cabin detail and sheeting, the delicate wing strut attachments might have held, wings might have stayed on with magnets and serious crash might not have happened. Wing loading is very important in flyability of light weight designs.
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