|
RE: BME Edge?
1 Attachment(s)
I finally started working on my plane. Thanks to suggestions from Maudib and Desertpig I set the front of my BME 50 to 7 3/8 in front of the firewall.
Here's a pic of the engine and the cowl. |
RE: BME Edge?
Perfect! That will go a LONG way in helpign you balance it.
Well... I'm not going to be in a position to finish mine... a local fella picked my (err... his) Edge up Friday... This is a plane I'll probably regret selling... He said he was going to use a MVVS 58 in it... Good choice... it'll be WAY overpowered, but he shouldn't have ANY issues balancing. The downside will be the weight hit, but he said he was an IMAC flyer and anot a 3D'er... I think this plane would do both quite well. I can always pick another one up after finishing the myriad of projects I have now up. I'm staying in the thread to hear the flights, see the videos and help with any input I can... -David |
RE: BME Edge?
1 Attachment(s)
ORIGINAL: dirtypool I got the .500 i.d. carbon fiber tube in. It is a very tight fit but it does fit. I would not recommend it if you are going to remove the stab all the time, but it presses on with a firm push. It came in a 29" length so I will cut it to 14. Anyone interested in the other half? Got mine out of the box and here are the weigh-in results. Digital scale. Fuse - 46.7 oz L. Stab - 2.7 oz.......R. Stab - 2.6 oz L. Elev - 2.5 oz........R. Elelv - 2.5 oz L. Wing - 24.1 oz.....R.Wing - 25.1 oz L. Spat - 1.3 oz........R.Spat - 1.2 oz Fin - 2.2 oz..............Rudder - 4 oz Hatch - 6.45 oz........Cowl - 9.1 oz Canopy - 2.3 oz.......Firewall - 6.8 oz Wing Tube - 8 oz.......Stab Tune - 1.6 oz Landing Gear - 9 oz...Tailwheel Assy - 1.6 oz Axles - 1.2 oz............Main wheels - 1.3 oz Tail wheel - 1.2 oz.....Hardware - 1.8 oz Total = 165.2 oz = 10 lbs 5.2 oz I plan on upgrading the tubes, and L/G to CF. New engine mounts will be ordered too to get it as far forward as I can. Spar Here are a couple pics of plane and power plant: |
RE: BME Edge?
Sorry Spar. Torqmaster got to me first.
Lets get Torq's opinion on the tube. I bought it from ACP composites. It is a spiral pattern on the tube, not the usual "crosshatch" pattern. Dont know if that matters, but it is pretty stiff. It is just over an ounce lighter than my stock stab tube. Did you measure the weights including screws/etc? I'll let you know if the deal falls through. Rob ORIGINAL: Sparhawk ORIGINAL: dirtypool I got the .500 i.d. carbon fiber tube in. It is a very tight fit but it does fit. I would not recommend it if you are going to remove the stab all the time, but it presses on with a firm push. It came in a 29" length so I will cut it to 14. Anyone interested in the other half? Got mine out of the box and here are the weigh-in results. Digital scale. Fuse - 46.7 oz L. Stab - 2.7 oz.......R. Stab - 2.6 oz L. Elev - 2.5 oz........R. Elelv - 2.5 oz L. Wing - 24.1 oz.....R.Wing - 25.1 oz L. Spat - 1.3 oz........R.Spat - 1.2 oz Fin - 2.2 oz..............Rudder - 4 oz Hatch - 6.45 oz........Cowl - 9.1 oz Canopy - 2.3 oz.......Firewall - 6.8 oz Wing Tube - 8 oz.......Stab Tune - 1.6 oz Landing Gear - 9 oz...Tailwheel Assy - 1.6 oz Axles - 1.2 oz............Main wheels - 1.3 oz Tail wheel - 1.2 oz.....Hardware - 1.8 oz Total = 165.2 oz = 10 lbs 5.2 oz I plan on upgrading the tubes, and L/G to CF. New engine mounts will be ordered too to get it as far forward as I can. Spar Here are a couple pics of plane and power plant: |
RE: BME Edge?
Did you measure the weights including screws/etc? All my weights listed is everything out of the box. Nothing was omitted in the weighing process, so this is my baseline. Anyone have a preference for a company that supplies the CF wing tube? Has anyone replaced the main L/G yet? If so, where did you get it? Regarding a rudder pull-pull, could you use ChipHyde horns (1") on both sides of the rudder, or would a Dubro system be better? Spar |
RE: BME Edge?
http://www.troybuiltmodels.com for the wingtube
Can't recall now, but the Vision has a hardwood plate where the screw goes into the stab and into the stab tube... I drilled a pilot hole and used servo screws (socket head)... It tpas tight intot he hardwood mounting block and into the tube as well. bo need for internal blocks in the tube there anyway... I use the Chip hyde horns on the rudder of the DV and get PLENTY throw... using them you get 2/56 bolts and bolt through the rudder and both horns and use nylock locking buts n the other side. |
RE: BME Edge?
I picked up a couple of the Chip Hyde control horns. They look fine Using Maudib's suggestion to bolt through the rudder. I'm a little hesitant to use them for the elevator using just the 2-56 wood screws. If you mount them, the front two screws don't look like they will bit into the ply plate. Anyone use them for the elevators?
http://www.centralhobbies.com/images/cnthrn-1.jpg Ed |
RE: BME Edge?
1 Attachment(s)
Ed,
As I mentioned I used Chips suggestion of installing the horns on my Double Vision elevators... I have HAMMERED the elevators HARD for fast speed walls and elevators that should have snapped them plumb off... They've not even hinted of loosening. You could longer screws on the Edge because the surface is so thick... wick some CA down into the hole to hardeh the area... OR I suppose a person could trace the base of the horn on some CF or 1/16 hard ply (paint it) and put it on top of the surface, bolting through it completely... I trust them as is... but you need to be comfortable and not go by my experience.... I've not heard anyone complain of a failure though... Here is a pic of an install of the horn on a CAP-X... |
RE: BME Edge?
Hey Guys how do you think a MOKI 2.10 will handle this bird? I had a MOKI 2.1 on my DV is was alright but not great power. The engine was not broken in yet, but did not want to have to wait to run four gallons throught it?
|
RE: BME Edge?
I bought 4 of the CH horns for elev and ail. I was going to use the dubro pull-pull setup that I bought for the rudder. Do you think I would be better off to use the ch horns I purchased for the ailerons on the rudder to save some tail weight? I have the 3" servo arm, but I would assume it has holes so I could use the 1" horns with my 3" arm on the pull pull.
Should I save the weight and use the ch horns on the rudder? and use regular dubro horns on the ailerons? I dont really want to spend another $17 on another pair of the ch horns. |
RE: BME Edge?
Best advice is the leave the rudder setup til the very last includign the horns...
Check balane and see how critical it is... then make your decison based on that... |
RE: BME Edge?
Good idea. Hopefully I can get the motor out far enough forward that I wont need so much tail worry.
|
RE: BME Edge?
I guess I will ask again. Do you think that a MOKI 2.1 will b e enough power for this plane or should I go gas?
|
RE: BME Edge?
1 Attachment(s)
Maudib, thanks for the help with installing Chip Hyde's control horns. I also took your advice on the threaded 4-40 with .18 CF stiffened control rods. If you haven't figured it out by now, I'm fairly new to Giant Scale. Here's pic of the installation. I also have pic of where I plan of installing my rudder, throttle and receiver...just in front of the wing tube.
I have a question on the throttle servo...would it be safe to move it closer to the engine? I'm using a BME 50 with CH Ignition. I've read that with CH Ignition, it would be better to have better separation between the radio components and the ignition. It seems with DA, you can mount some of your components closer. |
RE: BME Edge?
Hello is this thing on!!!!!
|
RE: BME Edge?
Hey rgreen24...
I guess noone has answered because they don't have direct experience with the Moki 2.1 The best judge will be you.... how much does your DV weigh... expect the Edge to weigh about 1-1.5 lbs less without going out of your way to lighten it... |
RE: BME Edge?
Hey Maudib, thank you for the reply. I guess I did not look at it that way.
Thanks, By the way MY DV was a pig. But the Harriers were rock solid.. without spoilerons |
RE: BME Edge?
Seems the plane wasn't a pig... the engine was a dog... ;)
The Vision would provide you with an airframe to more easily balance with the Moki... While I don't know the weight of the Moki 2.1... The DA with muffler, ignition & battery is somewhere around 4+ lbs... You might even save a little more than 1.5 lbs... I went through as much lightening as I could and am projecting 15-15.5 lbs all up... CF gear, tailwheel, spinner, lions... Seems it might be possible to get it at 14 or maybe just under??? with the Moki... but only if you go through all the motions... |
RE: BME Edge?
I have a question on the throttle servo...would it be safe to move it closer to the engine? I'm using a BME 50 with CH Ignition. I've read that with CH Ignition, it would be better to have better separation between the radio components and the ignition. It seems with DA, you can mount some of your components closer. |
RE: BME Edge?
I was looking at the CH horns... they don't look like enough for 3D throws... they are nice though. I used the Rocket city horns and mine are nearly 1.5 tall to get the right displacement (45%).. I don't see the hyde horns getting anywhere close to that. The pics above show about 30% max..
As far as locating the equipment.. mine is all jammed into the nose on the firewall. The ignition, Li-Ion battery and regulator are all touching, the RX battery pack is 4" away from the Ign "bundle" and the throttle servo is mounted on the firewall 1" from the carb. The RX (PCMR770 JR) is less than 6" from all the rest of the stuff. I went to a smaller (18oz) tank, elevated the tank and moved the Pull-Pull setup under it, so now that pull pull is as far forward as it can get and the tank is still nearly on CG. I have perfect range and no issues in flight. My CG is 5.00 inches and my weight is 16 pounds 5 oz WET. DP |
RE: BME Edge?
mmm. I hope that the CH horns are going to work, as that what I had planned on using. Wait and see approach I guess.
For all you DA50 users out there, want to post up a pic of your cowl cutout setup for the head and muffler? I want an idea of how much I am going to have to carve away. Progress - I carved off the backplate of the canopy area so I can have better access to the area under the turtledeck. Now I can reach in there and tidy up the cables and stuff. Firewall is ready to epoxy in, and brace, and block, and pin, etc. Used a laser level on a tripod to shoot the centreline. Very accurate. Ordered new standoffs, as I want this bad boy to be as far forward as possible. My new standoffs are 3 5/8" long, to get the 7" to the front of the cowl plus the 1/8" gap for spinner. Spar |
RE: BME Edge?
ORIGINAL: Maudib Hey rgreen24... I guess noone has answered because they don't have direct experience with the Moki 2.1 The best judge will be you.... how much does your DV weigh... expect the Edge to weigh about 1-1.5 lbs less without going out of your way to lighten it... Maybe this can help. Moki 2.1 I have one waiting for an airplane complete with Pitts Muffler, Tru Turn 3.5 inch spinner, non metal engine mount and 20-10 Dynathrust Prop = 4 lbs 2 1/4 ounces Just engine no hardware 2 lb 14 oz Took off the prop it weighed 5 1/4 oz Spinner 4 1/2 oz Possible Moki Combo with different prop/spinner might go right at 4 pound seven. I mention all of this as I am curious. Have been watching threads to decide if I want the BME Edge, Wh Edge, Extreme Flight Yak, or TOC Yak all running 85-87 inch wings. In other threads folks talk of the Moki turning a 22-10 at 7000 to 7600 rpm depending on prop manufacturer. Any comments on which way to go without having to dump my Moki and spend 500 extra bucks on a gasser? |
RE: BME Edge?
If your Moki 2.1 will turn a 22x10 at 7000+ rpm you could go with any of them, although I would put the Wild Hare last on the list simply because it tends to be heavier, and the BME next because it is hard to balance with a light engine.
|
RE: BME Edge?
1 Attachment(s)
Hi guys,
I'd thought I chime in here with some praise - - to BME! I had a wheel pant that was damaged in shipment... kinda got squished, and Max promptly replied to my email and will be sending one (or a full set) out as soon as replacement parts arrive. Replacement items such as pants, canopies, and cowls will be available soon for those that have slight accidents. From what Max said, they will be available for all of the BME Aircraft lineup. Spar Oh, and here is a pic of my soon-to-be-finished cockpit. :D I know some of the guages are not 100% correct, but hey. The photoshop file is pretty big with all the layers at 37mb, but I can probably make .jpg's for those that want one. |
RE: BME Edge?
Ummmm... to get MORE throw you need SHORTER horns and longer servos arms.
Still, you don't want to get too short on your horns or you risk flutter due to improper geometry. The CHP Horn is 21 mm (a little over 13/16") from the base of the horn to the center of the ball bearing... I wouldn't want to go any lower than that... In the pic it also looks like the servo isn't fully deflected... ORIGINAL: desertpig I was looking at the CH horns... they don't look like enough for 3D throws... they are nice though. I used the Rocket city horns and mine are nearly 1.5 tall to get the right displacement (45%).. I don't see the hyde horns getting anywhere close to that. The pics above show about 30% max.. As far as locating the equipment.. mine is all jammed into the nose on the firewall. The ignition, Li-Ion battery and regulator are all touching, the RX battery pack is 4" away from the Ign "bundle" and the throttle servo is mounted on the firewall 1" from the carb. The RX (PCMR770 JR) is less than 6" from all the rest of the stuff. I went to a smaller (18oz) tank, elevated the tank and moved the Pull-Pull setup under it, so now that pull pull is as far forward as it can get and the tank is still nearly on CG. I have perfect range and no issues in flight. My CG is 5.00 inches and my weight is 16 pounds 5 oz WET. DP |
| All times are GMT -8. The time now is 09:39 PM. |
Copyright © 2026 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.