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Mounting the DLE-20 onto Revolver 70 ? - 10/13/2012 12:15 AM   
Granpooba


 

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From: Queensbury, NY, USA
Status: offline 		Hi Guys,

Have been flying my Revolver 70 with a Saito 91 pulling it, for a couple of years now. But have found that a lot of guys are flying the Revolver 70 with a DLE-20. Having a DLE-20 sitting on my work bench right next to a new Revolver 70, I have some questions about this mod.

From what I can find out people are using the standard GP motor mounts with the back of the mounts cut out to allow space for the carb. Would like to know if folks are using the already existing blind nut holes, or are you changing them to allow for the width of the DLE ? Or, are you widening out the holes in the mounts to allow for the width ? And is anybody using other mounts besides the GP's mounts that came with the model ? I have even considered using a vibration free mount for my installation.

Finally, any problems lining up the prop hub/engine with the cowling ? Anybody making any adjusting measurements for mounting the engine and cowling ?

Mind you I have many, many years of building experience behind me, more than I care to mention. I have started this thread only to get various opinions on how folks are doing the mod to their own Revolvers, then I can adapt their ideas and suggestions as to how I want to install my DLE and make it perfect.

Would appreciate some pictures being posted, if possible.

Thanks guys ..............

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RE: Mounting the DLE-20 onto Revolver 70 ? - 10/13/2012 1:21 AM   
nh4clo4


 

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Status: offline 		Check out the Larger Revolver thread, Several have done it with the DLE 20 with great results
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RE: Mounting the DLE-20 onto Revolver 70 ? - 10/15/2012 3:05 PM   
Granpooba


 

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Status: offline 		Well, after viewing quite a few pictures and suggestions about mounting the DLE-20 onto a Revolver 70, I have decided just to put my own building skills to work.

Thus far, I have removed the blind nuts from the firewall, epoxied into the holes 1/4 inch round stock and sanded smooth. Will be centering and mounting the engine with my own better hardware. Modified the motor mounts to allow room for the carb. Noticed where quite a few fellows have mounted the DLE onto the stock firewall. This does not work for me as I am concerned about the power and vibration that the DLE puts out. Thus, I am in the process of strengtheing the firewall with triangle stock and then will epoxy all both outside the fuselage and inside. Have already mounted my DLE to the motor mounts and work continues from here ............

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RE: Mounting the DLE-20 onto Revolver 70 ? - 10/15/2012 7:32 PM   
ahicks


 

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Status: offline 		I used a beam mount RCGF 20 in mine. Seems like I used the t-nuts in their original position on the rh side, then got creative on the left? I had to modify the mount I used as well, for both carb clearance and access to the adjusting screws. No trouble lining cowl up on the spinner at all.

BTW, that spinner weighs a ton on a plane that might turn out a little nose heavy? I went to a white plastic w/drilled alum. back plate spinner for electric power. Much lighter and looks great.

One other note, I had to shim the top of the mount (at firewall) with one washer on each side for neutral thrust. Prior, I was getting a lot of trim change from half throttle to full, which was a pain while flying. After shimming (adding down thrust) that tendency has disappeared and the plane is nearly neutral on knife edge.

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RE: Mounting the DLE-20 onto Revolver 70 ? - 10/15/2012 11:07 PM   
Granpooba


 

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quote:

ORIGINAL: ahicks

I used a beam mount RCGF 20 in mine. Seems like I used the t-nuts in their original position on the rh side, then got creative on the left? I had to modify the mount I used as well, for both carb clearance and access to the adjusting screws. No trouble lining cowl up on the spinner at all.

BTW, that spinner weighs a ton on a plane that might turn out a little nose heavy? I went to a white plastic w/drilled alum. back plate spinner for electric power. Much lighter and looks great.

One other note, I had to shim the top of the mount (at firewall) with one washer on each side for neutral thrust. Prior, I was getting a lot of trim change from half throttle to full, which was a pain while flying. After shimming (adding down thrust) that tendency has disappeared and the plane is nearly neutral on knife edge.


I agree that the spinner is large. On my other Revolver which is running a Saito 91, I to am using a plastic spinner.

For this new Revolver build with the DLE, even though it is a little smaller, I have a Tru Turn spinner that I may decide to use. Seems to be even lighter than a plastic spinner.

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RE: Mounting the DLE-20 onto Revolver 70 ? - 10/21/2012 1:37 PM   
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Status: offline 		Hello Granpooba,
I also have a Revolver 70 sitting in my workshop that I bought a couple years ago and never got around to building it yet. At the same time a purchased a Saito 1.00. I'd like to ask how does the Revolver fly with you current engine? I know the Saito 1.00 has a little more power and am trying to get a feel how the performance of my plane would be with the 1.00
Thank you,
Pat

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RE: Mounting the DLE-20 onto Revolver 70 ? - 10/21/2012 5:55 PM   
Granpooba


 

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ORIGINAL: PDF

Hello Granpooba,
I also have a Revolver 70 sitting in my workshop that I bought a couple years ago and never got around to building it yet. At the same time a purchased a Saito 1.00. I'd like to ask how does the Revolver fly with you current engine? I know the Saito 1.00 has a little more power and am trying to get a feel how the performance of my plane would be with the 1.00
Thank you,
Pat


Hi Pat,

I am very happy with my R-70 powered by the Saito 91 and as far as I am concerned and others that have viewed it while flying, it is a really good / performing combination. Do not know how much difference their is between the Saito 91's and 1.00's, but I can only assume that the 1.00 will make the R-70 an even better flyer / performer.

I opted to install the DLE-20 into the R-70 after reading and reviewing other comments about the combo. Personally I feel and am hoping that the DLE-20 will make the R-70 an awesome performing sport flyer.

Getting back to your combo, put it together and fly it. I believe that you will be very pleased with its performance and may make it one of your favorite planes to fly.

Have fun and enjoy .................

Sincerely,

Dave

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RE: Mounting the DLE-20 onto Revolver 70 ? - 10/21/2012 6:53 PM   
landeck


 

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Status: offline 		My first Revolver 70 had a Magnum 91 four stroke and flew very well. In the second one I installed an OS 95V four stroke and it flew even better. Both provided very large loops and good verticle. The second one with the 95V using a APC 14x7 prop is noticeably faster and even better verticle performance.

Bruce

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RE: Mounting the DLE-20 onto Revolver 70 ? - 10/21/2012 10:31 PM   
Granpooba


 

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ORIGINAL: landeck

My first Revolver 70 had a Magnum 91 four stroke and flew very well. In the second one I installed an OS 95V four stroke and it flew even better. Both provided very large loops and good verticle. The second one with the 95V using a APC 14x7 prop is noticeably faster and even better verticle performance.

Bruce


Ditto !! More POWER is always better .............

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RE: Mounting the DLE-20 onto Revolver 70 ? - 10/21/2012 11:12 PM   
PDF


 

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Status: offline 		Thank you for all the replies. I'm looking forward to building and flying it, but am also looking forward to getting a gasser soon.
Thanks,
Pat

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RE: Mounting the DLE-20 onto Revolver 70 ? - 10/22/2012 11:42 PM   
Granpooba


 

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ORIGINAL: PDF

Thank you for all the replies. I'm looking forward to building and flying it, but am also looking forward to getting a gasser soon.
Thanks,
Pat


Why not just purchase a DLE-20 and mod your R-70 to it. Then you will have your gasser and an awesome combo. You can always find a good model for your 4 stroke. I am also flying a Great Planes Little Toni with a four stroke and this also is a real nice flyer.

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RE: Mounting the DLE-20 onto Revolver 70 ? - 10/23/2012 12:52 AM   
PDF


 

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Status: offline 		That's what I was thinking, but the only thing stopping me is that I bought the engine already. Well who knows what will happen by the time I build it. I just checked in the Tower Hobbies site and had always had the Little Toni on the list for the future, and it's discontinued.
Regards,
Pat

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RE: Mounting the DLE-20 onto Revolver 70 ? - 10/23/2012 10:45 PM   
Granpooba


 

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ORIGINAL: PDF

That's what I was thinking, but the only thing stopping me is that I bought the engine already. Well who knows what will happen by the time I build it. I just checked in the Tower Hobbies site and had always had the Little Toni on the list for the future, and it's discontinued.
Regards,
Pat


Just visited the Tower site and saw that the Toni is discontinued. To me that is a shame as I thought that it was a nice building and flying ARF. Was going to also suggest the Great Planes Cosmic Wind, but did not see that one either.

Well, as you say, who knows what will happen in time. I've changed my mind plenty of times about what I wanted to build and what I actually did build.

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RE: Mounting the DLE-20 onto Revolver 70 ? - 10/29/2012 1:32 AM   
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Status: offline 		I'm going to put a G20 in my revolver this winter. Instead of reading 1000 pages, can someone give me a readers digest version of what must be done for installation and balance?

Thanks in advance.

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RE: Mounting the DLE-20 onto Revolver 70 ? - 10/29/2012 2:41 AM   
ahicks


 

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Status: offline 		Sounds like fun. Install should be pretty straightforward? Balance usually involves going with pull pull rudder, and dual elevator servos mounted in the tail (easy). Pretty easy to confirm if you hold up installing the radio stuff and rear control surface servos until you've had a chance to check your balance once everything else has been done? Mine ended up a little nose heavy (I used an RCG 20 which is a little heavier than the DLE), but getting rid of the supplied spinner and going with a lightweight was all I needed to do. No added weight anywhere. I went with a single A123 2300 for everything to keep the weight down (9.5 lb a good target weight). Look for the landing gear reinforcement that uses an aluminum plate with 90 degree bend to tie the landing gear plate to the firewall. I've seen my gear completely flattened on a "less than graceful" landing with no damage anywhere.

-Al

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RE: Mounting the DLE-20 onto Revolver 70 ? - 11/4/2012 5:59 PM   
Granpooba


 

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ORIGINAL: ahicks

Sounds like fun. Install should be pretty straightforward? Balance usually involves going with pull pull rudder, and dual elevator servos mounted in the tail (easy). Pretty easy to confirm if you hold up installing the radio stuff and rear control surface servos until you've had a chance to check your balance once everything else has been done? Mine ended up a little nose heavy (I used an RCG 20 which is a little heavier than the DLE), but getting rid of the supplied spinner and going with a lightweight was all I needed to do. No added weight anywhere. I went with a single A123 2300 for everything to keep the weight down (9.5 lb a good target weight). Look for the landing gear reinforcement that uses an aluminum plate with 90 degree bend to tie the landing gear plate to the firewall. I've seen my gear completely flattened on a ''less than graceful'' landing with no damage anywhere.

-Al


On my first R-70, with a very graceful landing, landing gear tore out and back, wheel pants punctured both wings. Repaired all and it still is a great flying plane. Definitely do some kind of reinforcing to the landing gear. Personally have no suggestions other than extra wood bracing and epoxy.

But this is not my first Great Planes model with a weak landing gear. Also have a SHOESTRING that the landing gear came out twice on me, before I finally did almost a complete rebuild and reinforcement. Again, it is also a great flying plane now .

These days, I think all ARF's need a good going over before flying. Have found many other weak areas with other models. Had the complete tail assembly come off on my Aeroworks Extra 300 QB. Came off on its very first flight / take off. Note now, this was a completely clean break in front of the tail assembly and undeneath the horizontal stab. Definitely bad / poor gluing job at the factory and weak design of tail underneath fuselage.

Notified Aeorworks of what happened, not looking for any refund or compensation. Heard NOTHING back from them ! But then again, they already had my money, why bother with me ? Good luck to the rest of you that have the same Aeroworks .............

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RE: Mounting the DLE-20 onto Revolver 70 ? - 11/4/2012 9:51 PM   
ahicks


 

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Status: offline 		It's not just that AW plane. I sprung for the AW Yak 90-120. By the 3rd flight every bulkhead had separated from one side from the wing's trailing edge forward. I hadn't even started leaning on it stress wise. Quality built my butt. It was heavy and no sturdier than any of the other Chinese ARFs I've built.

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RE: Mounting the DLE-20 onto Revolver 70 ? - 11/5/2012 11:32 PM   
Granpooba


 

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ORIGINAL: ahicks

It's not just that AW plane. I sprung for the AW Yak 90-120. By the 3rd flight every bulkhead had separated from one side from the wing's trailing edge forward. I hadn't even started leaning on it stress wise. Quality built my butt. It was heavy and no sturdier than any of the other Chinese ARFs I've built.


Thought that it was just I that was starting to notice postings about the quality of Aeroworks ARF's, but here is another posting.

The information that I am taking away from such postings is that, no matter what I am assembling now or in the future, I will definitely reglue all areas that I can see and reach. Also I will reinforce any area that I feel may be weak.

As with my AW, there was no way possible for me to view a poor / weak glued area. Or even assume that the tail section was weak. If you fellow modelers could have seen the break, you would have stated like so many others that seen it stated, " it looks like you cut it off with an exacto knife ". That describes such a clean break it was !

Forgot to mention in my earlier posting that my AW's was totaled in the crash. Ended up at the city dump the very next day.

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RE: Mounting the DLE-20 onto Revolver 70 ? - 11/23/2012 10:57 PM   
Granpooba


 

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Status: offline 		Anybody install an OS GT 22 into a Revolver 70 yet ?

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RE: Mounting the DLE-20 onto Revolver 70 ? - 12/6/2012 7:23 PM   
Granpooba


 

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Status: offline 		Does anybody even have a " OS GT 22 " ?

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RE: Mounting the DLE-20 onto Revolver 70 ? - 12/6/2012 8:07 PM   
oldtyme


 

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ORIGINAL: Granpooba

Does anybody even have a '' OS GT 22 '' ?


A little off thread here but why would you buy an OS GT 22 for $409 when you can buy a DLE20 for $249 before special Tower deals? I bought 3 DLE 20's for $209 each and the DLE's are getting glowing reviews.

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RE: Mounting the DLE-20 onto Revolver 70 ? - 12/6/2012 11:33 PM   
Granpooba


 

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quote:

ORIGINAL: oldtyme


quote:

ORIGINAL: Granpooba

Does anybody even have a '' OS GT 22 '' ?


A little off thread here but why would you buy an OS GT 22 for $409 when you can buy a DLE20 for $249 before special Tower deals? I bought 3 DLE 20's for $209 each and the DLE's are getting glowing reviews.


Why buy a OS GT 22 ? Well probably because I might want one, can afford one and don't know of anyone that has yet to take their hobby funds with them to their final resting place. Worked reasonably hard all my life for my money, thus I figure that I can spend it where, when and how I want. Besides I just finished putting a DLE-20 into a R-70.

Just thinking of ideas to put on my work bench for the coming months. Just got a new Revolver 59 with an OS .55AX to fill my time for a few weeks until I decide on a more serious build. I usually assemble about three models every winter. Yes, yes, my wife does remind me that I have enough airplanes. She keeps telling me where to put them and I can only assume that she means on the walls.

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RE: Mounting the DLE-20 onto Revolver 70 ? - 12/7/2012 5:40 AM   
Indiomike


 

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Status: offline 		The lack of response to your question on the OS GT 22 should be self explanatory. Very few people are willing to pay about $200 more for an engine that can be had at the DLE price. Good for you if you have money to burn but the vast majority see the DLE at its price point a much better value than the OS at its price.

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RE: Mounting the DLE-20 onto Revolver 70 ? - 12/7/2012 11:40 AM   
Luchnia


 

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ORIGINAL: Indiomike

The lack of response to your question on the OS GT 22 should be self explanatory. Very few people are willing to pay about $200 more for an engine that can be had at the DLE price. Good for you if you have money to burn but the vast majority see the DLE at its price point a much better value than the OS at its price.


I think most share the same sentiment about OS gas engines and even some OS glow engine prices. I would not go with OS either as they are way too expensive for this type of engine and for the most part have not proven to give enough additional performance or engine life to equal the extra cost.

In many cases there is enough extra price added to the OS engine to pay about 70% of an additional airframe cost. To me that means another plane

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RE: Mounting the DLE-20 onto Revolver 70 ? - 12/7/2012 11:16 PM   
Granpooba


 

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quote:

ORIGINAL: Indiomike

The lack of response to your question on the OS GT 22 should be self explanatory. Very few people are willing to pay about $200 more for an engine that can be had at the DLE price. Good for you if you have money to burn but the vast majority see the DLE at its price point a much better value than the OS at its price.


Why do some hobbyists put $10,000.00 into a jet model, while others put $15,000.00 into one. Probaby because they can and want to. Simple, simple.

My answer to your question was fully explained. Because I want one and can afford one. Whats so hard to figure out about that ?

Finally, your question if off thread.

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