RE: Larger Revolver
 

[8D]
No, no, no...just the time it takes to install the DLE 20 engine is what I am looking for! :eek: :D

I figure if I know roughly the time to install the DLE 20, I can plan it out much better since I don't want to disrupt from my flying times. It is getting nice around here now and I am hoping to get some good flying in soon.

I figure if it is a three hour job I can have everything ready for that "window" of opportunity to upgrade. Maybe a rainy day/evening project. I have not bought the engine yet, but plan to get one sometime soon. If we have nice weather I may wait until summer to upgrade.

RE: Larger Revolver
 

The thing that takes the most time for me with engines is positioning the servos (throttle and choke) and fashioning and installing the control rods and linkages. And, in this case, reinforcing the firewall, adjusting the engine mount. And, I'm pretty sure you have to re-position the blind-nuts to fit the larger engine mount. So it takes some time.

RE: Larger Revolver
 

Luchnia

I was able to use the existing blind nuts with my engine mount, and did not have to modify the mount to fit the DLE20. I reinforced the FW with fiberglass cloth anyway, so I don't consider that time.

For actual installation, getting the FW->Thrust washer distance was no problem. I could mount my engine on the mounts without any issues with the FW, carb, etc.

As noted, the throttle linkage is the most tedious thing, ESPECIALLY ON A DLE20, because everything is so close together, and it is bloody hard to get the ball links in there! DLE55 - piece of cake. Throttle linkage was also tedious because the fuel tank interfered with a direct servo->throtttle arm line; i had to put in a soft z-bend to clear the tank and then get back towards the midline to operate the throttle linkage.

I had to fabricate a choke linkage, and a support for the choke linkage.

All in all, it was probably 3 hours. I work slowly, I'll admit. I try to get it right the first time.

RE: Larger Revolver
 

Did you use a solid metal linkage or the soft stuff for this plane? I forget what it is called, but some guys I know use it. It is flexible and can stand a reasonable bend for the throttle? I know on larger gassers I have I used heavy 4-40 rod for my throttles and chokes and never have any issues. I just am not sure that is feasible on the DLE 20.

I am thinking 3 hours should do it. I agree that the linkages and servos with throttle and choke are the tough ones. I normally don't use a choke servo as I use a metal rod strategically placed and also I use an opto kill switch.

I think you have to be wize of the weight on the Rev 70 because it flies and is balanced nicely with a 91 glow and I want mine to maintain those nice characteristics as best as possible with the DLE 20. I honestly like the 91FX on this plane, but this stinking engine will suck the life out of glow fuel and the gassers are misers. How is that for an excuse to get a DLE 20? :D

As always thanks for the assistance!

RE: Larger Revolver
 

When I first put the 91FX on my Rev 70 I had some heat issues with the engine, but I got that straightened out by proper baffling/porting which brings me to this question. Do any of you check your engine temps and if so, what do you use to check the temps? I have never used any sort of gauge or anything to check engine temps and was curious about this.

RE: Larger Revolver
 

I used solid metal rods, BUT, they have (insulating) ball links at each end to mitigate RF interference. I personally have not been happy with the performance of the wire cables, but i think the goldenrod system works well - i have no personal experience with it.

I use 2-56 on my throttle, figuring (rightly or wrongly) that i should not need much pressure to operate the throttle linkage.

RE: Larger Revolver
 

i use the sullivan "golden rod" i call it a ny-rod since its nylon.

its works great and has plenty of pushing strength inside its sleeve. there is no bending and lag before actuating the throttle.

Jeremy

RE: Larger Revolver
 

I used a combination of Goldenrod and 2-56 on my throttle and choke servo arms. I needed two bent 2-56 sections to get the right angles for the throttle and choke arms, and then filed down the other end and stuck it (and epoxied it) inside the Goldenrod. The attached pic is an earlier version, before I used the throttle arm extension that comes with the engine. (the engine box is a mess, as it was rebuilt from a previous crash. But it worked!)

RE: Larger Revolver
 

Ive used the z bend method and i know it works just fine, but i just dont like it. It just bugs me because there is no safety and looks like it could come loose. But it cant unless the other end comes off and you can manipulate it out of the hole. But if it comes loose from the other end, youve lost your control right there.

Just looks weird...

RE: Larger Revolver
 

hey oldbob. did we help you out with your mount?

Jeremy

RE: Larger Revolver
 

yes you did . everything is fitting in where it should. thanks.
Bob

RE: Larger Revolver
 

is the engine mount equiped with the revolver 70" good enough for the os120fs? or i should buy something else?

RE: Larger Revolver
 

if it fits, I think it should be fine.

If it can handle all the DLE 20s that we all have been putting on it, it should handle the 4 stroker.

anyone disagree?

Jeremy

RE: Larger Revolver
 

I wished weather would cooperate here in VA so I can get out and fly the Rev 70 and Edge some more [8D] We can always use the rain but sure makes for some rough flying weather. If I had the DLE in stock I would probably start working on the Rev upgrade. Excuses, excuses ;)

RE: Larger Revolver
 

awesome. welcome to the huge club of DLE Rev combos. You will love it. That motor and that plane are both awesome. And together they are....super awesome.

RE: Larger Revolver
 

Anyone thinking of a Mintor 22 for the R70? Apparently same size, same mount.

RE: Larger Revolver
 

<font size="4">Hi all, I'm mounting an OS 95AX on the Revolver. Anybody have any recommendations for  an APC prop size? Just looking for general performance.
I appreciate your comments.

JC</font>

RE: Larger Revolver
 

Prelude92 -

For my OS 91 2s I used an APC 14x7. Here's a link to a prop chart. Looks like 14x8 is right in the middle of the range.

http://www.rc-airplane-world.com/propeller-size.html

RE: Larger Revolver
 

Thanks, Microdon. Question about servos: the manual recomends the Futaba S9001, but I knotice that the S3010's seem to be the choice among those in this thread. The 3010's are $10 cheaper, yet they seem to have more power. What am I missing? What's your preferance?
Thanks, in advance.

jc

RE: Larger Revolver
 

I'm installing DLE 20 in a Revolverhave 2 others-also have what I think might be a helpful fix for landing gear problemsbut can't upload pics-

RE: Larger Revolver
 

Prelude
It is your plane, your choice, but I would never use a plastic geared servo in an airframe of this size, especially if you plan to put a larger than specified engine on her.

My advice:
Use metal gear servos.
Consider using digital servos.

I put Futaba S9452 servos all around in mine (2 aileron, 2 elevator, 1 rudder). Digital, metal gear, coreless motor, reasonably strong.

For less money, consider Hitec 645MG, or the Hitec 5645mg digital equivalent.

Just my $0.02

RE: Larger Revolver
 

Will someone try posting a picI get message that upload is complete but nothing appears here-file size is okless than 6000KB-would like to kno if it's memy computeror site-thanks

RE: Larger Revolver
 

I use Hitec 645mg on mine. Over kill for strength, but not a bad price for the quality and power.

Jeremy

RE: Larger Revolver
 

Roger that Jeremy

Here is my bird
Two pics seem to have uploaded

Cactus - upload has worked with single uploader

RE: Larger Revolver
 

Thanks, wjcalhoun. The Futaba s4952 are a tad bit over my budget. The hitec 645 seem powerful, and for only about 32 bucks. I've never had hitecs before. So you would recommend this one?

jc