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RE: Larger Revolver - 10/8/2012 3:42 PM   
Sbach342Guy


 

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From: STEWARTSTOWN, PA, USA
Status: offline 		KE spins are pretty tough and get your heart going as you watch your plane drill quickly towards the deck. The flat spin on the other hand is surprisingly easy. One of the guys watched my stick moments when I did one and was able to do it on his first attempt. I'm not sure how flat of a spin you can do in a Revolver with the factory throws on the elevator. My Extra 300, Edge 540, and MXS all need about 45 degrees of elevator (or more) to do a nice flat spin.

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RE: Larger Revolver - 10/8/2012 4:10 PM   
ahicks


 

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Status: offline 		Love to start high on the down wind side of the field, pull the power, roll the plane to KE and let 'er drop, then add power to check the planes descent and eventually climbing out - still on KE! Adding a KE spin to that is now something that has me thinking...

-Al

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RE: Larger Revolver - 10/8/2012 4:10 PM   
wjcalhoun


 

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From: League City, TX, USA
Status: offline 		My R70 spins pretty flat - perhaps 10* nose down. Agree with S&S that CG plays a big role, as does bit elevator throws. Most planes will rotate on their yaw axis in a spin, but getting that yaw axis near vertical - a true flat spin - is dependent both on stick inputs and on plane setup. I'll get some video as soon as i can convince my wife to come to the field to film.

I have made the R70 KE spin, but that is a hard maneuver for me to hit right; each of my (3) Extras needs different kinds of inputs and tweaking to get there. Last time out she KE spun pretty well. I don't know if it has to do with the fast prop (12 picth), or that I am learning to fly the plane into KE spin better. Once it starts, it can be pretty exciting because one loses altitude in a hurry. One of my extras likes to spin a extra turn or so after i clear the inputs, so be ready for that as you exit.

microdon - roger that recommendation on xray, or you might just treat it as a fracture with a buddy tape and boot! Give you something to talk about at work.

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RE: Larger Revolver - 10/8/2012 5:05 PM   
microdon2


 

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wjc - of course I just started running again! Maybe I should get the toe looked at.

btw - Along with the piston rings I recently received from Frank Bowman he also sends out a sheet with recommendations on how to deal with the reed valves of Chinese-made gassers. From owning the DLE 20 and 30 and having issues with low-idle on both, I'm thinking his recommendations make LOTS of sense. I"m going to be doing this to the DLE 20 soon (along with replacing the ring). Will let you know the results. Instruction sheet from Frank Bowman is attached.



Attachments
Click to see the file in new window.Attachment.pdf


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RE: Larger Revolver - 10/9/2012 2:10 AM   
jet22b


 

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Status: offline 		Hey Guys,
I don't know you has seen this yet, but here is the big brother. See link below!!!
http://www3.towerhobbies.com/cgi-bin/wti0001p?&W=001344967&I=LXCLCJ&P=K
A must have for my fleet!!!

Sonny
aka
jet22b

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RE: Larger Revolver - 10/9/2012 3:20 AM   
microdon2


 

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From: Whitestone, NY, USA
Status: offline 		jet22b - I'm right there with you, brother! Actually, we've been talking about the new Rev 90 on this thread for a few weeks, including discussing best power plant and servos. But welcome to the club!

btw - wjc, sbach, and anyone else who does advanced aerobatics with the Rev 70 - two questions: after doing your aerobatic maneuvers (flat spin, KE spin, etc) do you switch all three control surfaces out of high throws? If so, isn't that a lot of switching to coordinate while not looking at the controller? That's my biggest concern, is being able to switch out of high-rates safely, as, from what I've seen, this plane is VERY reactive on high throws. Actually, I leave my rudder on high all the time, so would just have to switch back ailerons and elevators.

Do you have the setup on your radio where you can control all high throws using just one toggle switch?

btw - I think KE spins is one of the most dramatic maneuvers out there. Am surprised that anyone could do this with a Revolver - congrats, wjc!

Second question - does anyone do these advanced maneuvers with the Rev 59?

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RE: Larger Revolver - 10/9/2012 3:24 AM   
Sbach342Guy


 

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Status: offline 		All three surfaces are on the same switch. It seemed like too much of a pain to have three separate switches.

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RE: Larger Revolver - 10/9/2012 4:07 AM   
ahicks


 

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From: Waterford, MI, USA
Status: offline 		Full rudder full time with about 25% expo. Rudder and aileron on the same switch. Running enough expo on those so that normal stick movements fly similar to low rate. I hate super sensitive sticks....

Geeked about learning/trying this knife edge spin. Will likely try it first using the profile. I trust it doing stupid stuff like this a little more. Sounds funny, but even when it's dropping like a rock it's still in slow motion? Should be much easier to get my head wrapped around this with it, then make the jump to the R70.

Only problem I have is it's going to be 3 weeks or so until I can try it. We're out galavanting around the country in the RV the rest of the month. We were at the Wright Brothers National Monument at Kitty Hawk N.C. today though. Neat place. Pretty humbling thought regarding what those 2 did compared to where we are today.... sheesh - can you imagine running a KE spin past those 2 guys given the knowledge available at the time?
-Al

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RE: Larger Revolver - 10/9/2012 5:12 AM   
wjcalhoun


 

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Status: offline 		Mike:
I think the flying gurus use a separate rate switch for each axis (elev, aileron, rudder), but i put all three on one switch; when i pull that switch to low rates, i have a docile bird, no matter what i am flying. I adjust my low rates so that it is not possible to snap with full low rate elevator. I use increasing expo with increasing rate, as ahicks says, to keep the feel around center about the same independent of the rate switch.

When i get to be a better pilot, I might split off the axes onto differnent switches, but for now, i prefer the security of a single switch. It is a big three position switch right by my right index finger => easy to pull. I do not have to look down at my radio to change rates. Trouble=>low rates = less trouble. I have a Futaba 8FG, which is really flexible in its programming setup.

For the KE spin, one really needs a lot of down elevator, so i think max rates are essential for that. On the F*G* forum, there is a thread about positive G KE spins, with max up elevator - belly out. rather than max down - belly in. That direction i have not been able to make work. If anyone else can do it, let us know the tricks.



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RE: Larger Revolver - 10/9/2012 10:59 PM   
Granpooba


 

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quote:

ORIGINAL: jet22b

Hey Guys,
I don't know you has seen this yet, but here is the big brother. See link below!!!
http://www3.towerhobbies.com/cgi-bin/wti0001p?&W=001344967&I=LXCLCJ&P=K
A must have for my fleet!!!

Sonny
aka
jet22b


Their is already a " 50cc Revolver Forum " here on RC Universe.
Check it out ...........

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RE: Larger Revolver - 10/10/2012 2:42 AM   
Slow and Steady


 

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Status: offline 		Ahicks, Sorry for the cofusion, I edited my post to refer to WJC's directions for the flat spins. Must have had a senior moment when I originally wrote the post, having started with WJC and then changing it to you.

Regarding switching rates; I use a Futaba 12FG, which is very flexible allowing me to choose from 3 rates, Low, High and 3D; all on one switch. I use low for landing high for flight and 3D for extreme menuvers. I think John Glazelis may have recommended using one switch in one of his columns. It is very important to get out of 3D rates at the end of your menuver, to avoid an unexpected snap. I am trying to learn the knife edge spin and have found it much easier with the Extra than the Yak. I agree, it is the most exciting stunt to watch, particularly at 1/2 to 2/3 throttle. The plane looks like it is going to come apart at the seams and before you know it you are running out of altitide. On the other hand, we have a young fellow who can transition into knife edge spins with seamingly little effort and exit within a few spins. It is kind of like a conventional knife edge in that after you become comfortable, you can slow down the throttle and really enjoy mixing it up.

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RE: Larger Revolver - 10/10/2012 3:19 AM   
ahicks


 

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From: Waterford, MI, USA
Status: offline 		S&S, yup, I get it! Did the same exact thing to acdii and microdon2 a week ago!! Got focused on the topic and completely spaced who wrote what.

Re: KE, yes, been flying it a lot lately, and comfort factor IS settling in (been working on KE loop with a roll every 90 degrees - still pretty high with that though!) Now at the point there's time to think regarding the decision between using more/less rudder or more/less throttle to control altitude on passes down the strip. Slow KE is more fun to watch I think, but the R70 responds really well/predictably with either?

-Al

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RE: Larger Revolver - 10/15/2012 12:57 PM   
microdon2


 

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From: Whitestone, NY, USA
Status: offline 		Crashed my Rev 59 \ OS 91 4s on Saturday. Bad. It was flying great - plane and engine - a beautiful day (winds 4mph, sunny) - I was doing my usual stunts. At this field - RCRCC in Central Nyack, NY (just west of the Tappan Zee Bridge) (I love this field) - unfortunately, the morning sun is somewhat in your eyes, so you have to be careful. Well, at one point I'm coming around - was flying inverted - the plane was pretty far away and I either took my eye off of it for a second and \ or lost orientation as it passed in front of the sun. Either way I was suddenly guessing about it's orientation, pulled up, and guessed wrong - the plane was still inverted, and, pulling up it now dove towards the ground, at 2/3 throttle. I tried to pull more to pull out of it but the 59 just spun and then plowed right in, just over the edge of the field. When a buddy and I got over there it was not good - the plane had landed smack in the middle of a 10ft wide drainage ditch lined with big rocks. Plane was totaled, including the engine. The crankcase of the OS 91 broke in half, and even the head was broken. I've never seen engine damage like that before. Even the receiver was broken. Considering the size of this field the odds must be 100-1 to land right in that ditch. So I was pretty bummed - it was one of my favorite and best-flying planes and engines, and the crash was completely my fault.

The only part not damaged at all was the tail feathers. When I got home I found an older, also damaged set of Rev 59 wings, and realized I might be able to transplant a section or two from one set to the other to make a complete set. So I ordered a new chassis, cowl, and spinner. And I do have an older OS 91 4s and Futaba receiver I can use. So now I feel a little better.

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RE: Larger Revolver - 10/17/2012 11:38 PM   
markhamregular



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From: Pembroke Pines, FL, USA
Status: offline 		I am finishing a Revolver 70 with an OS120.
The back plate of the spinner provided go through the theaded part of the shaft, but won't go any further.
Anyone knows what can I do so I don't mess the plate drilling of using a dremmel.

Thanks


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RE: Larger Revolver - 10/18/2012 12:25 AM   
SkyPilot101


 

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From: Freedom, PA, USA
Status: online 		Use a Prop Reamer, alternating from front & back sides untill the hole is opened up to fit your engine shaft.

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RE: Larger Revolver - 10/18/2012 12:35 AM   
wjcalhoun


 

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Status: offline 		Markh:
Never use a dremel to open up a hole that you expect to be concentric!!! Tools are made for specific purposes; dremels are good for many purposes, but enlarging a hole in a prop or backplate is not one of them. If you screw up your backplate, the balance of your prop/spinner will never be right. Think about it first! What if you get that hole off center??

Prop reamers work, but you are likely to have coarse control of the size of the hole, because they come in steps.

Better, get a micrometer, measure the diameter of the shaft, and select the proper drill bit to provide a few thousandths of clearance into the backplate. Invest in a good set of bits, 1/16 -> 1/2 by 32nds of an inch. One 32nd of an inch is about 30 thousandths, so with those drills, you will be able to come close. Total investment probably $60-70, and you will do it right. Check harbor freight, or northern tool. The right tool is almost always the right choice. Making do with a hack is almost always the wrong choice.



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RE: Larger Revolver - 10/18/2012 11:21 AM   
landeck


 

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From: Sandy Springs, GA, USA
Status: offline 		Use a prop reamer as others have suggested. I had the same problem and just a touch of the reamer fixed the problem.

Bruce

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RE: Larger Revolver - 10/18/2012 4:36 PM   
markhamregular



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From: Pembroke Pines, FL, USA
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I am not that handy to take care of this by drilling the exact way. I used the prop reamer. Now it goes through but not very tight. I have other planes with back plates the same way. I think once I tightly screw the prop in, it will be fine. I may take it to the field before I brake in the engine to see what other experts at the field think about it.

Thanks a lot for all your input.



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RE: Larger Revolver - 11/5/2012 11:45 PM   
Granpooba


 

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From: Queensbury, NY, USA
Status: offline 		Wondering, what size throttle servo's you folks are using on your DLE-20's ?

I believe without running down to my work shop that mine is generating .66 oz of torque with carbonite gearing. This servo should be sufficient right ? Say YES, please !! As it is already mounted.

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RE: Larger Revolver - 11/6/2012 12:01 AM   
Granpooba


 

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From: Queensbury, NY, USA
Status: offline 		Let me just state right now " what a GREAT forum " and group of modelers !

Already have one R-70 flying, being pulled around by a Saito .91. Am in the process of finishing up my second R-70 with a DLE-20 mod. Was thinking about what model would come next, possibly a R-90 with a DLE-55. But after reading and viewing so many postings on this forum, I may just do a 3rd. R-70, incorparating some of mods you folks have talked about and shown.

Great Planes must be selling an awful lot of Revolvers.

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RE: Larger Revolver - 11/6/2012 12:19 AM   
ahicks


 

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Status: offline 		I'm not much on karbonite gears, but that said, I'll use about anything on a throttle servo!

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RE: Larger Revolver - 11/6/2012 12:49 AM   
microdon2


 

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From: Whitestone, NY, USA
Status: offline 		Granpooba - very cool that you love the Rev 70 as much as we all do. But have you been reading the RCU thread on the new Rev 90? You might want to reconsider. It's already getting rave reviews from the few guys who have flown it so far. I know it's on MY wish-list.

http://www.rcuniverse.com/forum/fb.asp?m=11287559

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RE: Larger Revolver - 11/6/2012 1:05 AM   
afjetmech


 

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quote:

ORIGINAL: ahicks

I'm not much on karbonite gears, but that said, I'll use about anything on a throttle servo!


+1.   I thought they would be fine on my Rev70 with DLE20.  Wrong.  Second flight one of the aileron servos stripped out.  Bad servo?  Maybe, but I replaced all four with metal geared before it flew again.  Rebuilt the stripped one and used them on my Rev59 that is Epowered.

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RE: Larger Revolver - 11/6/2012 3:15 AM   
capt1597


 

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From: toledo, OH, USA
Status: offline 		i have read many times that if your using a gas engine you must use metal gears in the servos. i don't fly with gas. i am using a os 91 fx and went with karbonite gears as an experiment for myself. report to date is zero issues with over 500 flights on this bird. just one mans 2 cents. happy flying, capt

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RE: Larger Revolver - 11/6/2012 3:56 AM   
wjcalhoun


 

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From: League City, TX, USA
Status: offline 		I put HS5625MG in mine; quick, and inexpensive - about $45. Has way more torque than necessary, but its digital, and metal gears.

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