teckbot

My Feedback: (2)

Bad day today! Should always listen to your intuition, and when it says "Too windy to fly!!" it probably is. Take off was fine, flight was fine. But the side ways approach should have been enough of a warning. Misjudged my position and put it down a little too far on the rough side of our field. Snapped a brand new Xoar prop and took off the landing gear. Funny, more pissed about the prop. Gear was a clean break (at the weak spot). Already have new prop, be flying as soon as winds allow.

ahicks

My Feedback: (2)

Revolver fliers can be split into 2 groups - those that fix the gear putting it together, and those that are gonna get around to it later... and do it the hard way!

Sorry to hear about your "arrival". Sounds like it could have been much worse?
-Al

teckbot

My Feedback: (2)

I can't real take credit to be in either group, as i bought a used air frame.

But as the Navy guys say " Any landing you can walk away from is a good landing", "A great landing is when they can reuse the aircraft"

And yes like I said, it was a clean break. Mainly at the seams. Now if i could only glue my prop...... LOL

Dreamtime

Well I used the Xoar 17x6 prop today and Wow -- the DLE 20 really lights up with this prop. Excellent combination. Almost as fast as the 15x8 APC but much better vertical. I would say that this is the benchmark prop for the DLE 20.

mach2

My Feedback: (5)

That's my favored prop...

mach2

My Feedback: (5)

That's my favored prop...

mach2

My Feedback: (5)

No problem. The diagram Al posted is helpful too. If you notice, it also shows what I mentioned. The throttle arm is about .9"at the connection, and the servo arm has the rod connected at .67". That difference of almost a quarter inch is just as important as the angles shown.

I'm going to make sure my angles are as close to what the diagram shows on my current Rev build. I normally just use expo on my radio to get the throttle curve I want because it's effective and easy. It's normally real good with a simple method I use. I'll run the engine, put the stick on the radio in the middle and add expo (negative expo on my Futaba radio) until the engine rpm comes down to where it sounds like it's running at about half power. Then the throttle curve is generally pretty linear. Then I'll add or remove expo depending on how it responds during the flights. Pretty simple...

Jeremy

lean-run

Yes mach2, I use the long arm on the carb, and shorter on the servo. That combined with the diagrams are great. I have computer radios, but still like old methods of set-ups.

Maybe one day I'll figure out the computer......

ahicks

My Feedback: (2)

Sad news. Another Revolver was sent to meet it's maker this afternoon.

Was flying/running pretty good. Put it into a rather violent inverted stall/spin/blender kind of thing. Blast to watch it trying to catch it's tail, but when I neutralized, it didn't exit like I thought it would. Instead, it continued the spin, even with full power on it. I entered the spin at a very safe altitude, but it doesn't take long to eat a lot of altitude doing that kind of nonsense, and the fact I did this just upwind of a rather tall line of trees just made matters worse. I hit the top of the tallest one going nearly straight down. To make matters worse, it's still up there, wedged firmly into the crotch of a rather largish branch! Lookin like I'm going to have to hire a climber to go get it. It's a good 50' off the ground in a very dense woods. I knew what tree it went in to, and it still took us a solid half out of peering through openings to finally spot the wreckage. No way to heave a line or any of the other methods I know of to retrieve.

Plane is pointing up, and the front half of the fuse appears to be in pretty good shape, so anything I care about is reasonably weather proof. If it's till up there Tuesday, I have the number of a young climber that's done work for a couple others in the club. We'll see if he's interested in going after this one...

-Al

lean-run

Hope the retrieval operation successful.

Another will rise from the ashes I reckon.

lopflyers

My Feedback: (12)

I'm the president of the first group, out of many two revolvers, the 59 and the 70 I think I repaired 5 LGs

teckbot

My Feedback: (2)

ouch!!!!

proline1000

Prop help? Getting ready to maiden Rev70 with .80 Rimfire stock set up. Stock spec calls for 15X6-15X8. I prefer wood on my other planes. Can anyone help with which prop works best re: amp/watt draw and performance differences? Thanks much!

teckbot

My Feedback: (2)

You can try this
http://www.ecalc.ch/motorcalc.php?ecalc&lang=en
but, there is no substitution to a watt meter hooked up to the plane to see actual readings.

proline1000

Techbot, thx! So is the goal to hit max specs of Rimfire .80 - 52 amps/1150 watts (constant)? What will the effect difference be between the 6&8 pitch? Thx again

Dreamtime

[QUOTE=proline1000;11837109]Prop help? Getting ready to maiden Rev70 with .80 Rimfire stock set up. Stock spec calls for 15X6-15X8. I prefer wood on my other planes. Can anyone help with which prop works best re: amp/watt draw and performance differences? Thanks much![/QUOTEar
Hi Proline. My Revolver started life as an electric with a scorpion 4035 -- a lot bigger than the Rimfire 80. I ran a 15x8 electric APC prop on 8s getting about 2000W -- more than the DLE20. I would start with a 15x6 just to slow the plane down. You may have found it, but here is the electric thread -- loads of info on the Rimfire and others experiences with it. http://www.rcgroups.com/forums/showthread.php?t=1165154

proline1000

Dreamtime, Thanks for the advice and link to thread found some good stuff for sure. Based on suggestions I have a Xoar 15X7 wood prop that I will maiden with. It was 52amps/ 1320 watts peak so I think that might be a good starting point. Thanks again!

Dreamtime

That will move the Revolver around very nicely Proline. You do not need the huge watts I was producing. You will enjoy her very much with your current setup. I fly the Revolver every single outing still. And she gets comments every time.

microdon2

My Feedback: (47)

mach2 - you're right, I do usually barb both ends of the fuel tubing, but I was feeling lazy and was looking for an out. No fear - I did end up doing both ends, and can finally sleep through the night. And agree with you on the Zinger props - they're more valuable as a word in Scrabble than on an airplane. Right now I"m using an APC 16x8 on my Rev 70 \ DLE 20. Also love Xoars (just don't let it touch the ground! Also a decent Scrabble word...)

My other Rev 70 sports a YS140 and an APC 16x12. LOTS of power - LOVE the sound. A bit expensive on fuel, but SUCH a great engine. If the DLE's could only sound like that.... Actually had a very close call with this plane on Sunday. Was taking off - 2nd flight of the day - from Floyd Bennett field in Brooklyn. Soon as I pulled up on takeoff the engine bogged down. I pulled the throttle back, then up, but didn't help - no power. Started banking left, but too low to make it back. At this point it's 30 ft high, heading towards the woods. I kept banking left, then lost sight of it behind a closer section of bushes and trees. Was sure it landed in the woods and was totaled. Got over there, turned the corner and see the plane is sitting normally, on the next runway (Floyd Bennett Field used to be a military air base in WWII), which was being used by guys driving RC drag-racers. I somehow blind-landed the plane!! Or, more like, it landed itself. Only a minor dent on the spinner and one of the wing-tips. Amazing plane! It lands itself!

After inspecting the plane I found the probably cause of the engine problem - the throttle servo was a bit loose. Turns out the base plate that it was screwed into was cracked in three places (possibly due to too much throw on the servo.)

mach2

My Feedback: (5)

So, I've got the rear control surfaces hinged up. Now I'm working on doing the dual rear elevator servos (first time doing this, while it's my third revolver). I'm using Dubro heavy duty control arms (I painted the black washers white so the don't stand out like a sore thumb). I'll be using ball links on the servo arm, connected to heavy duty quick clip clevises with a Hanger 9 4-40 easy adjust rod.

ahicks

My Feedback: (2)

A couple of heavy cold fronts moved through with a lot of wind over the last 48 hours. Blew hard enough to break the branch my plane had impaled itself on. We'll just call it a hardware recovery, but happy to get even just that! Not a single blue or white piece/area on it without major damage! If you're going to do it, might as well do it right!

New plane will be on order today. -Al

lean-run

Best outcome from a bad situation.

Good to see a new one on the way!

mach2

My Feedback: (5)

So you going to order a new revolver, or something else?

And you're going to be reusing the DLE20 on something aren't you?

teckbot

My Feedback: (2)

Nice work! I like the hinging. My question or concern to you would be CG related. Would not having two servos way back there not affect in a negative way? I have a three servos (center) setup in mine with a DLE20 in the front and it balances perfect without any lead. Having the servos - as light as they are - in the back would necessitate counter balance in the front?
Just asking..

ahicks

My Feedback: (2)

I spent the last couple days wondering if there might be a 20cc plane I'd rather have. Decision was, nope! New plane should be here Monday or so....

Be nice to fly one that weighs what it's supposed to. Mine was getting to be a porker.... Still flew good, but noticeably heavier than it was new.

Re: balance. We''l see what this new one needs. The old one needed the servos in the rear.

Second thought, mine might be flying with a CG a little further back than suggested.....


-Al