ESM Dornier DO 335
02-25-2013, 01:18 PM
#552
RE: ESM Dornier DO 335
Relax man. I've never implied you did't get a good long life from your triplane. We were all sad to hear what happened.....especially me since I had just got one of my own flying. And yes i know I didn't start the build on mine......but with your help on the wing incidence, I was able to fix that airframe well enough to make it flyable from an initial pile of crap.
Sorry bout getting the year of the incident mixed up with the Dr1. Myself....haven't had an issue for a while either except for having to belly land the me-110 at wotr due to bad air valve. So its all good.
Sorry bout getting the year of the incident mixed up with the Dr1. Myself....haven't had an issue for a while either except for having to belly land the me-110 at wotr due to bad air valve. So its all good.
02-25-2013, 06:25 PM
#553
RE: ESM Dornier DO 335
ORIGINAL: kahloq
Relax man. I've never implied you did't get a good long life from your triplane. We were all sad to hear what happened.....especially me since I had just got one of my own flying. And yes i know I didn't start the build on mine......but with your help on the wing incidence, I was able to fix that airframe well enough to make it flyable from an initial pile of crap.
Sorry bout getting the year of the incident mixed up with the Dr1. Myself....haven't had an issue for a while either except for having to belly land the me-110 at wotr due to bad air valve. So its all good.
Relax man. I've never implied you did't get a good long life from your triplane. We were all sad to hear what happened.....especially me since I had just got one of my own flying. And yes i know I didn't start the build on mine......but with your help on the wing incidence, I was able to fix that airframe well enough to make it flyable from an initial pile of crap.
Sorry bout getting the year of the incident mixed up with the Dr1. Myself....haven't had an issue for a while either except for having to belly land the me-110 at wotr due to bad air valve. So its all good.
02-25-2013, 07:43 PM
#554
RE: ESM Dornier DO 335
Well...not the bext pic since FB tends to downgrade quality...but didnt feel like powering up the desktop to offload a regular digital camera photo.
02-26-2013, 08:29 AM
#556
RE: ESM Dornier DO 335
ORIGINAL: jimkron
This thread needs an intervention...Shall I call Dr. Phil?
ORIGINAL: kahloq
Relax man. I've never implied you did't get a good long life from your triplane. We were all sad to hear what happened.....especially me since I had just got one of my own flying. And yes i know I didn't start the build on mine......but with your help on the wing incidence, I was able to fix that airframe well enough to make it flyable from an initial pile of crap.
Sorry bout getting the year of the incident mixed up with the Dr1. Myself....haven't had an issue for a while either except for having to belly land the me-110 at wotr due to bad air valve. So its all good.
Relax man. I've never implied you did't get a good long life from your triplane. We were all sad to hear what happened.....especially me since I had just got one of my own flying. And yes i know I didn't start the build on mine......but with your help on the wing incidence, I was able to fix that airframe well enough to make it flyable from an initial pile of crap.
Sorry bout getting the year of the incident mixed up with the Dr1. Myself....haven't had an issue for a while either except for having to belly land the me-110 at wotr due to bad air valve. So its all good.
02-26-2013, 05:42 PM
#557
RE: ESM Dornier DO 335
Retracts tested and installed. These are the ESM version 3 electrics. The wheels did NOT come with the set. They aren the older aluminum hub style included with the pneumatic versions of the esm gear. The wheels were bought seperately sicne the set of tires provided with my original v2 set of electric gear are plastic gub and rather blah looking.
Anyhow....mains are 4.5". I wanted to use 5" to get the tail higher to give as much bottom rudder clearance as possible...however....5" ones just wont fit on the ESM oleo struts. To compensate, I raised the main gear themselves off the stock wood rails about an 1/8" using metal washers.
The set of tires that comes with the gear had a 3.5" nose and I installed a 3" esm aluminum hub nosse wheel to bring the nose down and get that tail as high as possible.
All in all...a whopping 3/8" rise for the tail....but better then having a nose high situation.
Also....note the pencil lines.....those are the CG marks. I measured the 151mm back from the crook in the wing taper and also measured 8.5" back from the wing's LE agaisnt the fuse. Both positions line up with eachother....so seems thats the right spot...however, to be safe.....I will balance it nose heavy from that location.
Anyhow....mains are 4.5". I wanted to use 5" to get the tail higher to give as much bottom rudder clearance as possible...however....5" ones just wont fit on the ESM oleo struts. To compensate, I raised the main gear themselves off the stock wood rails about an 1/8" using metal washers.
The set of tires that comes with the gear had a 3.5" nose and I installed a 3" esm aluminum hub nosse wheel to bring the nose down and get that tail as high as possible.
All in all...a whopping 3/8" rise for the tail....but better then having a nose high situation.
Also....note the pencil lines.....those are the CG marks. I measured the 151mm back from the crook in the wing taper and also measured 8.5" back from the wing's LE agaisnt the fuse. Both positions line up with eachother....so seems thats the right spot...however, to be safe.....I will balance it nose heavy from that location.
02-26-2013, 06:16 PM
#558
RE: ESM Dornier DO 335
ORIGINAL: kahloq
Retracts tested and installed. These are the ESM version 3 electrics. The wheels did NOT come with the set. They aren the older aluminum hub style included with the pneumatic versions of the esm gear. The wheels were bought seperately sicne the set of tires provided with my original v2 set of electric gear are plastic gub and rather blah looking.
Anyhow....mains are 4.5''. I wanted to use 5'' to get the tail higher to give as much bottom rudder clearance as possible...however....5'' ones just wont fit on the ESM oleo struts. To compensate, I raised the main gear themselves off the stock wood rails about an 1/8'' using metal washers.
The set of tires that comes with the gear had a 3.5'' nose and I installed a 3'' esm aluminum hub nosse wheel to bring the nose down and get that tail as high as possible.
All in all...a whopping 3/8'' rise for the tail....but better then having a nose high situation.
Also....note the pencil lines.....those are the CG marks. I measured the 151mm back from the crook in the wing taper and also measured 8.5'' back from the wing's LE agaisnt the fuse. Both positions line up with eachother....so seems thats the right spot...however, to be safe.....I will balance it nose heavy from that location.
Retracts tested and installed. These are the ESM version 3 electrics. The wheels did NOT come with the set. They aren the older aluminum hub style included with the pneumatic versions of the esm gear. The wheels were bought seperately sicne the set of tires provided with my original v2 set of electric gear are plastic gub and rather blah looking.
Anyhow....mains are 4.5''. I wanted to use 5'' to get the tail higher to give as much bottom rudder clearance as possible...however....5'' ones just wont fit on the ESM oleo struts. To compensate, I raised the main gear themselves off the stock wood rails about an 1/8'' using metal washers.
The set of tires that comes with the gear had a 3.5'' nose and I installed a 3'' esm aluminum hub nosse wheel to bring the nose down and get that tail as high as possible.
All in all...a whopping 3/8'' rise for the tail....but better then having a nose high situation.
Also....note the pencil lines.....those are the CG marks. I measured the 151mm back from the crook in the wing taper and also measured 8.5'' back from the wing's LE agaisnt the fuse. Both positions line up with eachother....so seems thats the right spot...however, to be safe.....I will balance it nose heavy from that location.
Love the way you finished off the wheel wells. The Sierra retracts were a challenge that way.
Looking good on the balance...you should be fine the way your doing it.
I'm doing this from memory...depending on how sensitive your balance device is, you might find the plane a little nose up or little nose down. In the end, I tried to balance the plane with the front prop perpendicular to the ground. Plane flew great on maiden.
jim
02-26-2013, 08:14 PM
#559
RE: ESM Dornier DO 335
Here she is on her wheels for the first time. Note the 3" of clearance under the bottom fin. Oh boy....... thats gonna get scraped a lot LOL.
One problem I am seeing now is that the front motor seems to have a LOT of up thrust. Initially, I had used the exact same length standoffs. I started seeing the up thrust problem and added a washer behind both top standoffs offs and the motor still seems to have the thrust line pointed up at about 2 degrees. Rather strange. So......Im gonna have to go to the hardware store and get a few more washers to shim the motor down a little more.
One problem I am seeing now is that the front motor seems to have a LOT of up thrust. Initially, I had used the exact same length standoffs. I started seeing the up thrust problem and added a washer behind both top standoffs offs and the motor still seems to have the thrust line pointed up at about 2 degrees. Rather strange. So......Im gonna have to go to the hardware store and get a few more washers to shim the motor down a little more.
02-26-2013, 09:29 PM
#561
RE: ESM Dornier DO 335
Hmmmm...black electrical tape. Does it work? I was thinking of using a couple layers of aluminum foil tape, but electrical tape would be easier.
That 3 blade sure looks good doesnt it? Will look even better with the cowl and spinner on Same for the rear, though pics have already been shown of that.
That 3 blade sure looks good doesnt it? Will look even better with the cowl and spinner on
Same for the rear, though pics have already been shown of that.
03-04-2013, 02:48 PM
#563
RE: ESM Dornier DO 335
Added some hardwood rails along the fuse sides under the lip where the big hatch is located for strength. Also....moved the rudder servo forward as the stock location would have the pull-pull wires in the way to the wing holding bolts at the rear of the wings. Gorilla glued balsa hardblocks against the internal structure forward of the servo box
03-05-2013, 05:46 PM
#564
RE: ESM Dornier DO 335
Moving on to the battery tray up behind the firewall...... Added wood railes as support then used hex head screws to mount two ply plates for the batteries to sit on. I used screws just in case I needed access to the battery or esc wires which run inder the plywood plates. The screws also allowed the velcro straps to be securely attached instead of using epoxy to keep them in place.
On top of the wood tray, I put a thin piece of packing foam to cushion the batteries and makes sure the heads of the screws in the tray didnt imprint in the batteries.
I can fit two 6s 8000's next to eachother for the front motor and if needed for balance, can sit a 6s 6000 on top for the rear motor.
On top of the wood tray, I put a thin piece of packing foam to cushion the batteries and makes sure the heads of the screws in the tray didnt imprint in the batteries.
I can fit two 6s 8000's next to eachother for the front motor and if needed for balance, can sit a 6s 6000 on top for the rear motor.
03-05-2013, 06:20 PM
#565
RE: ESM Dornier DO 335
Nice job. I stood my 4 x 5s 5000mah lipos on end in the same place. Nice short run to the front motor but very long to the back. I put a set of Castle Creation Caps in the big hatch area to help with that "long motor/battery wire thingy". That's as technical as I get.
jim
jim
03-06-2013, 02:07 AM
#567
RE: ESM Dornier DO 335
I use one of those on my EDF jet flying a TamJet 100mm fan. Seems to work fine, the Castle Cap is bigger and I think cheaper. (don't tell Tam I said that-he's a friend)
Here is a link that explains the "what-why".
http://www.castlecreations.com/produ...-cap-pack.html
jim
Here is a link that explains the "what-why".
http://www.castlecreations.com/produ...-cap-pack.html
jim
03-06-2013, 03:09 AM
#568
RE: ESM Dornier DO 335
Here is another video of my Do 335 flying. We were doing some slow passes for the camera. 400 foot runway, full flaps (could use a little more), and brakes.
http://www.youtube.com/watch?v=_tGTHELif1w
Be sure to check out my P-47 flying a Hacker A80 on 12s.
http://www.youtube.com/watch?v=b6TIOnfBAFw
Enjoy.
jim
http://www.youtube.com/watch?v=_tGTHELif1w
Be sure to check out my P-47 flying a Hacker A80 on 12s.
http://www.youtube.com/watch?v=b6TIOnfBAFw
Enjoy.
jim
03-07-2013, 12:37 AM
#569
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RE: ESM Dornier DO 335
Jim,
That looks really nice in the video...seems to fly well. They are an interesting looking plane in the air aren't they.
One thing about the capacitor units, you won't do any harm by adding more than is needed...other than the weight of course. So you can err on the side of plenty without worrying. You will get a slightly bigger spark when you connect, but that is not harmful in itself. One of my planes has a an antispark setup, where there are two connectors, so you connect first with a resistor in series then short out the resistor...it still gives a bit of a spark so I am not sure how much it really helps, and extra connectors are not really desirable either.
John
That looks really nice in the video...seems to fly well. They are an interesting looking plane in the air aren't they.
One thing about the capacitor units, you won't do any harm by adding more than is needed...other than the weight of course. So you can err on the side of plenty without worrying. You will get a slightly bigger spark when you connect, but that is not harmful in itself. One of my planes has a an antispark setup, where there are two connectors, so you connect first with a resistor in series then short out the resistor...it still gives a bit of a spark so I am not sure how much it really helps, and extra connectors are not really desirable either.
John
03-07-2013, 03:52 PM
#570
RE: ESM Dornier DO 335
Jim...how often are you replacing the electrical tape on the tail fin bottom? Definitely looked like it may have briefly touched the runway on landing. Im running off of pavement, so even a quick scrape wouldnt be a good thing.
03-08-2013, 07:13 PM
#572
RE: ESM Dornier DO 335
ORIGINAL: kahloq
Jim...how often are you replacing the electrical tape on the tail fin bottom? Definitely looked like it may have briefly touched the runway on landing. Im running off of pavement, so even a quick scrape wouldnt be a good thing.
Jim...how often are you replacing the electrical tape on the tail fin bottom? Definitely looked like it may have briefly touched the runway on landing. Im running off of pavement, so even a quick scrape wouldnt be a good thing.
03-09-2013, 12:23 AM
#573
RE: ESM Dornier DO 335
ORIGINAL: kahloq
Jim...how often are you replacing the electrical tape on the tail fin bottom? Definitely looked like it may have briefly touched the runway on landing. Im running off of pavement, so even a quick scrape wouldnt be a good thing.
Jim...how often are you replacing the electrical tape on the tail fin bottom? Definitely looked like it may have briefly touched the runway on landing. Im running off of pavement, so even a quick scrape wouldnt be a good thing.
03-09-2013, 05:54 AM
#574
RE: ESM Dornier DO 335
ORIGINAL: BOLTMAN
Maybe recess a small wheel into the tip of the lower fin? I know of a full size light aircraft that has a small wheel recessed into the bottom of the tail ''skid''. If the wheel was small and positioned such that only a small portion hung out of the fin it would barely be noticable.
ORIGINAL: kahloq
Jim...how often are you replacing the electrical tape on the tail fin bottom? Definitely looked like it may have briefly touched the runway on landing. Im running off of pavement, so even a quick scrape wouldnt be a good thing.
Jim...how often are you replacing the electrical tape on the tail fin bottom? Definitely looked like it may have briefly touched the runway on landing. Im running off of pavement, so even a quick scrape wouldnt be a good thing.
