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HomeScaleAircraftHelicopterScale Model RC Helicopters › eCobra / Swift 16 Build
01-16-2009 03:22 AM  9 years agoPost 421
Seaviper

rrApprentice

Central MS

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Looking good guys! I have been cleaning up my wiring as well as strengthening a couple areas in the rear fuselage. Just waiting on my new skids from the DR.

Hope to start glassing over the next couple days.

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01-16-2009 03:52 AM  9 years agoPost 422
WrenFlyer

rrVeteran

Mississippi

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Not a lot of progress for me. I did get the tail sheeted and I've started sanding the tail boom. Still awaiting servo extensions, perhaps Friday.....

First flight next week?????

Mr. Haney

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01-16-2009 02:40 PM  9 years agoPost 423
Seaviper

rrApprentice

Central MS

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Don't rush the first flight Alan. Get her back safe!

Peter and Sliderx...I like the split dohouse idea.

For me, all I need to do is remove the head which on the 620SE is a very easy thing to do. So, I am going with the kit as is. Hopefully I can get some work done on the bird today. I DID remove the eLogger which helped clean up the wiring ALOT. It's not needed now after about 20 test flights.

The fuselage sides in the area around the tail servo need to be re-inforced. They flex quite a bit. Carbon fiber should do the trick and not weigh too much.

I will have the wings and fins glassed and installed prior to any more flying. Also the canopy and transmission housing will be locked with screws.

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01-16-2009 02:50 PM  9 years agoPost 424
reinhpe

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Vienna, Austria

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The fuselage sides in the area around the tail servo need to be re-inforced. They flex quite a bit. Carbon fiber should do the trick and not weigh too much.
Do you want to put the Carbon Rowings on the Inside or outside of the fuselage?

Peter

Logo 500, Z-Power, Kontronik Jive, BLS Servos & GY 401,
Hirobo Quark
e-Cobra (w.i. progress)

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01-16-2009 03:23 PM  9 years agoPost 425
WrenFlyer

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Mississippi

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My head is super easy to remove!

Loosen 2 clamp bolts, remove Jesus bolt, pop off 2 links....done!

Mr. Haney

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01-16-2009 04:45 PM  9 years agoPost 426
Seaviper

rrApprentice

Central MS

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Peter I am using carbon fiber thread on the inside of the fuselage secured with thinned epoxy. Photos later. I suppose a piece of ply or balsa might do the same thing. Your fuselage may not need it. I have an older kit.

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01-16-2009 08:17 PM  9 years agoPost 427
WrenFlyer

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Mississippi

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Patrick, are you reinforcing the area between the last ply fuselage former and about where the top tail sheeting starts? I noticed while sanding today that it flexes a good bit there.

Mr. Haney

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01-17-2009 06:09 AM  9 years agoPost 428
WrenFlyerrrVeteran - Mississippi - My Posts: All  Forum  Topic

Getting closer! I need to glue in the LG and tidy up some wires and it'll be ready for a maiden flight!

Mr. Haney

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01-17-2009 09:38 AM  9 years agoPost 429
troadus

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Tacoma, WA

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Dr. Tim, Question......I have a Hacker A30-8XL Brushless motor and using a 50A brushless speed controller esc with the swift 16. It seems that the controller gets to hot to the touch at 1/4 throttle for a couple of minutes, is that normal. Can you help me in this matter.

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01-17-2009 12:11 PM  9 years agoPost 430
Seaviper

rrApprentice

Central MS

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Wow Alan, looks you and I are at about the same point.

Yes I am re-inforcing the area you described. I will take some photos tonight maybe. Been tied up all week.

Troadus...what battery, pinion, and esc?
Looking at my data from the eLogger, the ESC runs right around 20-30F above ambient temperature.

I run about 500-700 W, about 25-35 A, on a 5S setup with a Century 600A+ 1100kv motor and the 80A ESC and 90% throttle.

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01-17-2009 04:00 PM  9 years agoPost 431
DogWood

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Bend, OR. USA

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Troadus, generally anytime you run less than 75-80% throttle your making the esc work really hard, and basically the harder you make it work the more heat it produces. (and the lower the throttle setting the harder it has to work)

you really want to setup your gearing so that you get your target head speed when running 75-100% throttle.

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01-17-2009 07:55 PM  9 years agoPost 432
WrenFlyer

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Mississippi

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Has anyone built the tail cap yet? Nothing seems to be working right on mine!

Mr. Haney

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01-17-2009 11:59 PM  9 years agoPost 433
WrenFlyerrrVeteran - Mississippi - My Posts: All  Forum  Topic

I've got the tail cap worked out, had to re-cut some of the sheeting to make it fit and I still have a lot if finish work to do!

Mr. Haney

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01-18-2009 12:02 AM  9 years agoPost 434
WrenFlyer

rrVeteran

Mississippi

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Here's the maiden flight, had a problem with taking a "hit" on the electronics several times. Then my ESC stopped working...I'll find out tonight whats going on. Hopefully NOT and ESD problem!

Watch at YouTube

Mr. Haney

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01-18-2009 12:42 AM  9 years agoPost 435
Seaviper

rrApprentice

Central MS

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CONGRATS on the first flight Alan. Sorry to see you had a problem there. I don't know about ESD, but check into it. On my ship I am using carbon blades, carbon frames, and lots of metal parts and no ESD.

RC HELI magazine, February 2009, page 82 has a great article on ESD (There is supposed to be another article on page 36 but I couldn't see any words )

As for myself, finally got a little work done on the ship. Re-inforced the rear fuselage area with carbon fiber.

Here you can see the materials I used. Basically I cut a 12" piece of carbon fiber, wetted it in a mixture of denatured alcohol and epoxy, then applied it by hand and used a brush to straighten it up.

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01-18-2009 09:01 AM  9 years agoPost 436
Surri

rrNovice

Nidwalden, Switzerland

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Great postings - following it for a while now.

As I decided to build the AH-64A eApache instead of the eCobra, so I have a new surpluse eCobra (PM me if you interested, first come - first served).

Cheers - Surri

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01-18-2009 07:08 PM  9 years agoPost 437
CF-FZG

rrNovice

Toulouse

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Hi Doc,

Any news on the belts for the Trex500?

Mark.

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01-19-2009 12:50 AM  9 years agoPost 438
WrenFlyer

rrVeteran

Mississippi

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Made some progress with the glitch today. Replaced the ESC with a spare HV-85. I also did away with the 6 amp Align Regulator, went with a Medusa Potencia BEC. Moved the Rx further away from the motor and moved all of the servo wires down low in the chassis, away from motor and ESC. late today the wind finally died enough to get a decent flight in, Wesley filmed part of it for me. Still have some work to do on the tail programming, it's a lot more sensitive than the pod and boom set up. Added 15% expo and took the travel on the radio down to 90% during this part of the flight.

I still ave an Align Rx pack stuck in the back for balance, I think I'll try an Outrage 6S 4200 ma pack on it, should make the CG perfect without the added weight in the back.

Watch at YouTube

Mr. Haney

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01-19-2009 01:44 AM  9 years agoPost 439
Seaviper

rrApprentice

Central MS

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Nice !

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01-19-2009 02:40 AM  9 years agoPost 440
sliderx

rrApprentice

Meteghan,Nova Scotia, Canada

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That looks great. Moves along pretty good. You seem to have plenty of power to spare. Nice going.

Raptor 50 V2

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HomeScaleAircraftHelicopterScale Model RC Helicopters › eCobra / Swift 16 Build
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