EDFmodel

Michael

The frontier progresses quietly. It will get there as I promised (you appreciate I am fitting it in between all the overwhelming work that is EDFmodel).

Stick around.

Ian.

mkranitz

My Feedback: (60)

Ian,

Sounds good. I just love seeing those progress pix!

mk

EDFmodel

If you are really keen, one can carefully paint around the cockpit windows and modify the decal to match. Clear windows result. (A Mr Zimmermann example). Molded panel lines can be enhanced.

Ian.

mkranitz

My Feedback: (60)

Insane detail! I love it.

EDFmodel

Umh...

EDFmodel

Mr Zimmermann of Perth has completed his maiden flight of the 301 with great success.

Note the wheels retract slowly into closing bays. The video is well done and Mr Z assures me there is more to come.

Specifications

Kit 737 by EDFmodel.com
Power system 2 x B20 Hacker 15L
Fans alpha 58mm
Battery 4S komkam Lippo 2000 mAh
ESC 25 AMP x2
AMPS 13.5 x2
Retracts Robart x1 great planes x2
Retract slower device SJpropo server delay module
Duration 16min+
Weight ready to fly 1.36kg

Video at http://www.edfmodel.com/content.asp?...&orgfn=content

Well done Mr Z, a great effort.

Ian.

serdark

Great job. Does the model have lights?

Serdar

EDFmodel

Serdar

Cheers -lights, no I do not think so. Mr Z may have plans to chnage that. I know he is up to something rather special with the model now that the maiden is complete.

How about a peak at yours, which I am also looking forward to. All the engine issues resolved? Carefully spend time balancing the rotors.

Ian.

serdark

No significant progress on my Southwest jet. I have resolved the issues with the motor, fan selection. After major surgery, I was able to fit the Mega 16/7/4 motors into the ALFA 1502 Mega fans. I have also assembled the cowls and currently sculpting the cowl seams using a Tamiya polyester putty so that the seams would be totally invisible.

I am glad you have mentioned about the need for rotor balancing, I was assuming that the rotors have been pre-balanced. Learned a new thing.

Your previous message about Mr. Z's model caught my attention. I have long been thinking about how to slow down the retract mechanism until i read yuor message about the delay module. However, I was unable to locate the module on the internet, but I have gotten another idea on how to delay the mechanism, I need to experiment first to see if it works...

Well, I will post pictures whenever I have something to show, so far the wings look exactly as I have posted a few weeks earlier.

Cheers,
Serdar

mkranitz

My Feedback: (60)

The device you are looking for is the Go-Slo by McDaniel RC. There is another company that makes the device too, but I can't recall the name. Try a Google search for McDaniel or the Go-Slo. I had it on my Agusta 109 electric heli and it worked great. It only works on proportional servos (not retract servos).

lslewis

My Feedback: (2)

Serdark - Lights is easy the ones I used on the 305 (LearJet) were from http://www.flightlites.com/ just mount the lights and plug them in. It does make for a mess of wires inside the plane however.

Hurricane Larry

serdark

Thanks much, I will check Google for Go-Slo by McDaniel RC.

Serdar

serdark

Thanks much. I will look them up. So far I was unable to find anything that is realistic enough, but these guys may have them.

On my DC-3 (http://kolejliler.netfirms.com) I have finally decided to design and build my own lights and they work just as I want them. The red fin light is a slow flasher, the aft fuselage white strobe goes exatly like a xenon, a very bright but fast flash. The green/red navigation lights are static, no flash. The landing lights are halogen bulbs and they turn on when the gears are down.

For the 301 kit, I have the following planned: Two red strobes flashing once per second but not synchronous to each other (intentionally). Three white leds, very flast flashing, simulating xenon; two on aft wing tips one on the aft fuselage tip. Greed/red static lights on wing tips;Three white leds inside the cabin. That is why my 301 has transparent windows instead of decals. And finally three halogen lights, two on the wings and one on the nose gear.

Serdar

lslewis

My Feedback: (2)

Wow Serdark! Lights, I should tell you about lights, sorry about that. Do you serve coffee in the cabin too?
Hurricane Larry

serdark

Coffee in the cabin, but of course. Currently building the tiny paper cups for that.
Serdar

EDFmodel

A few pics of Mr Zimmermanns models. Notice in the back ground tails of other models.

There is some neat material coming soon.

Ian

serdark

Mr. Z is not only a great builder, but a great photographer as well. Looks extremely realistic, except the see-through jet engines.
Serdar

serdark

Ian,

I have your detailed installation instructions for the flat-bottom engine cowls but when I install the inner tail pipe inside the main cowl, the air flow is pointing up rather than down which I was assuming. In other words the inner tail pipe is touching the top end of the cowl exhaust leaving a gap at the lower end of the exhaust. The ribs on the tail pipe is causing this, unless of course I should be sculpting the tail pipe so that it would be perfectly centered inside the cowl.

What is the expected orientation of the tail pipe, a picture (if you have it would help even better).

Serdar

EDFmodel

Serdar

The engine has a 1.5 degrees negative thrust line relative to the chassis -i.e. the engines point downward.

You have corrected described the engine assembly. The tail pipe is not designed to sit centre in the cowling. Ensure it sits parallel with the Alfa fan at all times.

Set the fuselage spine at zero degrees with a spirit level, the wing root incidence angle should be + 1 degree and a set square in front of the engine intake lips should show up a -ve angle.

Ian.

serdark

Thanks Ian,

The picture made everything crystal clear. I have also noticed that the engine you are showing is using a fan with a singe-fin tail cone. My Alfa fans has dual fins. Therefore, for the shown assembly, I relalize that I must shave the tip of the tail-cone-fin to fit into the cowl.

Serdar

p.s. I have found a way to contruct the main retracts using carbon fiber material instead of aluminum. The model may weigh the same as the basic kit, despite all the additionsl We shall see...

EDFmodel

To continue the Frontier model-

The major wing assembly steps are pictured

-inner wings assembled to wing center
-pylons assembled
-lower wing spar
-outer wings and spars
-upper wing skins
-leading edge chrome
-lower wing surface
-wing tips.

A few details to add and model final assembly can begin.

Ian.

EDFmodel

Frontier 301 nears completion





Ian.

serdark

Awesome work, looking great.
Serdar

mkranitz

My Feedback: (60)

Hey Ian,

She's beautiful!!!! I'm not sure if you know about this, but our company just launched a classified ad service for 35+ newspapers in the U.S. The company is Kaango.com and we provide the classified services for the large LA papers and papers in the East Coast of the US and elsewhere. It's all-consuming for me so I apologize for missing this last post with the pictures.

So what remains??

Michael

EDFmodel

EDFmodel new 307 engine

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The new EDFmodel 307 engine. By comparison pictured next to the 303/305 engine. The 307 engine is designed around the WeMoTec Midi fan and for the 307 model.

Also pictured 301 engine on Frontier model.

These engine cowlings will be available on our website soon.

Ian.