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Old Nov 05, 2010, 08:39 PM
LSF 004 - AMA 5055
bobandris's Avatar
United States, CA, Saratoga
Joined Dec 2000
589 Posts
Quote:
Originally Posted by pulsery2k1 View Post
Hi rob737

I been very busy, only one month to retirement , I been working
on this slowly , I found some 8x6 scale 3 blade props but need to
test them, then I will list the link as to where to get them .
.
.
.
Hi pulsery2k1,

Did you ever sort out the 8x6 3-blades you mentioned? Best I could find in this thread for L&R 3-blades was the GWS 8x4's cut down to 7x4's by xplaneguy in post #223 and 235.

Thanks,
Bob
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Old Nov 06, 2010, 01:24 AM
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Los Angeles
Joined Sep 2010
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Need help....

I hope I didn't do something to screw up my TX and RX.

I finally got my Dynam Skybus from Nitro Planes today. Attempted to do a "dry run" before assembly to make sure that all of the electronics were working correctly (servos, RX, TX, etc.) However, after I hooked up all the connections to the RX and charged the battery, I powered up the TX (first), but nothing seems to be working.

The transmitter is on, and the RX is blinking quickly, but none of the servos or motors is operational.

I'm hoping I just messed up the binding between the TX and RX somehow. Didn't really understand the Chinese directions on the TX as far as the "protection switch".

Can somebody explain to me how to rebind the 2.4ghz TX and RX so I can test out things before assembly?

Thanks,
Jim
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Old Nov 06, 2010, 01:43 AM
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Los Angeles
Joined Sep 2010
738 Posts
I think it might have something to do with the 7 channel receiver that comes with the 2.4ghz of the RTF version.

I found some additional information elsewhere on the net where the problem was resolved by plugging the throttle cable into the Aux 2 position on the receiver and NOT the throttle position. Weird huh...

Something about a 4 channel plane and a seven channel receiver.

I'll give that a try tomorrow, but if anybody has any additional information on this, I'd appreciate hearing what you've know.

Thanks for all the input.
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Old Nov 06, 2010, 04:50 AM
The figure "9" Specialist
aeronca's Avatar
A Barrier Island in New Jersey, USA
Joined Oct 2003
3,477 Posts
Quote:
Originally Posted by pilot40874 View Post
I hope I didn't do something to screw up my TX and RX.

I finally got my Dynam Skybus from Nitro Planes today. Attempted to do a "dry run" before assembly to make sure that all of the electronics were working correctly (servos, RX, TX, etc.) However, after I hooked up all the connections to the RX and charged the battery, I powered up the TX (first), but nothing seems to be working.

The transmitter is on, and the RX is blinking quickly, but none of the servos or motors is operational.

I'm hoping I just messed up the binding between the TX and RX somehow. Didn't really understand the Chinese directions on the TX as far as the "protection switch".

Can somebody explain to me how to rebind the 2.4ghz TX and RX so I can test out things before assembly?

Thanks,
Jim
Sorry, I can't help you since I bought the RX-ready version for my Futaba FASST 7C. I'm sure it's just some crazy protocol problem and someone with the 2.4gHz RTF will chime in for you.

Aeronca
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Old Nov 06, 2010, 07:24 AM
dbc
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United States, FL, Brooksville
Joined Apr 2008
1,737 Posts
I just received my Dynam Grand Cruiser yesterday which has the same 2.4G Dynam radio system as used in the Skybus. And I had the very same issues with it. Could not get it to power up. The planes motors, servos and ESC's worked fine when I replaced the Dynam radio system with a Spectrum receiver and used my DX6i.

I then retried the Dynam radio and it worked. Second power up required some time and fiddling with the "protection swith" to get it to work. Sometimes it will power up; sometimes it won't.

Since it works only intermittently, I'm going to use the Spectrum system in this new plane. I'll work with the Dynam 2.4 system on the test bench to see if I can get it to perform consistently before risking using it. I'll just toss it out if I can't feel comfortable with it. It's only about a $30 tx/rx.

Anyone else with this 2.4 Dynam radio, please let us know your experiences.
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Old Nov 06, 2010, 08:54 AM
The figure "9" Specialist
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A Barrier Island in New Jersey, USA
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Quote:
Originally Posted by dbc View Post
I just received my Dynam Grand Cruiser yesterday which has the same 2.4G Dynam radio system as used in the Skybus. And I had the very same issues with it. Could not get it to power up. The planes motors, servos and ESC's worked fine when I replaced the Dynam radio system with a Spectrum receiver and used my DX6i.

I then retried the Dynam radio and it worked. Second power up required some time and fiddling with the "protection swith" to get it to work. Sometimes it will power up; sometimes it won't.

Since it works only intermittently, I'm going to use the Spectrum system in this new plane. I'll work with the Dynam 2.4 system on the test bench to see if I can get it to perform consistently before risking using it. I'll just toss it out if I can't feel comfortable with it. It's only about a $30 tx/rx.

Anyone else with this 2.4 Dynam radio, please let us know your experiences.
That is precisely why I bought the RX-ready version of the Skybus for my Futaba FASST 7C system! Besides, I really didn't need ANOTHER transmitter OR receiver of questionable quality.

Aeronca
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Old Nov 06, 2010, 09:08 AM
6 months to finish a rtf
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upstate ny
Joined Jun 2003
1,847 Posts
bobandris

the scale props worked great, the master airscrew 7X4 3blade
didn't quite have enough power I have the master airscrew
8X6 3 blade on the model , but havn't tryed them yet.
the wind seem's to like 15-20 mph each day so I haven't
flown it with them.
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Old Nov 06, 2010, 09:21 AM
dbc
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United States, FL, Brooksville
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No reciever ready version of the cruiser is avaliable now, I probably would have chosen that.

But for only $30 more you get the tx/rx, 2200 3s lipo and a charger with ac adapter. The battery alone is worth almost that much. If I end up discarding the tx/rx it was still a reasonably good deal.
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Last edited by dbc; Nov 06, 2010 at 09:26 AM.
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Old Nov 06, 2010, 11:10 AM
The figure "9" Specialist
aeronca's Avatar
A Barrier Island in New Jersey, USA
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Quote:
Originally Posted by dbc View Post
No reciever ready version of the cruiser is avaliable now, I probably would have chosen that.

But for only $30 more you get the tx/rx, 2200 3s lipo and a charger with ac adapter. The battery alone is worth almost that much. If I end up discarding the tx/rx it was still a reasonably good deal.
I do agree the RTF is worth the cost differential especially if you don't have a good collection of LiPo's, but I just didn't want their transmitter and receiver. Too bad they did away with the RX-ready option.

Aeronca
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Old Nov 06, 2010, 01:04 PM
dbc
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United States, FL, Brooksville
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Grayson is going to carry a RX ready version of the Grand Cruiser but they don't know when they will be getting it. I bought the RTF version from Nitroplanes and glad I did. They were out of stock on them 4 days after they went on sale! So it may be a while before either source has them available.

Pilot40874:

I've been playing around with the Dynam 2.4G radio this morning and discovered several interesting things (these may or may not apply to all of these systems):

1) The receiver will not link up to the transmitter if you turn on the tx first and wait for the blinking power lights to go solid and then hook up the battery. This is the way we're traditionally told to do it but I cannot get it to link this way.

2) However, if you will first hook up the battery (powering the rx) and then turn on the tx , it will link every time.

3) If you hook up the battery while the tx power lights are still flashing it will also link up.

4) The "protection switch" must always be moved to the position farthest away from you. If you started in this position, you must pull it forward and them push it back to power the motors. This must be done after you've heard the beeps from the ESC's indicating they are powered.

5) The rotary knob adjusting the servo travel (essentially end-point adjustments) works nicely except it has no effect on the rudder servo. That's precisely the one I'd like to be able to adjust to soften the nosewheel steering (on the Grand Cruiser) which is often too touchy to get smooth, scale-like roll outs on landings and takeoffs.

6) The throttle trim is not very linear and behaves erratically. No setting is able to give full stick travel, linear power. About the first 25% of the stick travel is always dead.

I'm still a little skeptical of this radio and may try it first in some "disposable" plane. I haven't yet tried a range check.

If its turned on in the sequence I just outlined, mine will link and power the ESC's, motors and servos just fine.
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Last edited by dbc; Nov 06, 2010 at 08:31 PM.
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Old Nov 06, 2010, 05:52 PM
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Los Angeles
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Quote:
Originally Posted by dbc View Post
But for only $30 more you get the tx/rx, 2200 3s lipo and a charger with ac adapter. The battery alone is worth almost that much. If I end up discarding the tx/rx it was still a reasonably good deal.

Yep, and since the version without the TX,RX only reduces the price by $9.75 at Nitro Planes. I figured for an additional $9.75, it's worth it just for the battery and ac adapter; even if I throw out the RX,TX eventually.
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Old Nov 06, 2010, 05:54 PM
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Los Angeles
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Thanks for the information dbc...great news. I'm going to give your suggestions a try and hope to have things operational soon.
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Old Nov 06, 2010, 07:43 PM
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Los Angeles
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That did the trick! Works great. Thanks again dbc.
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Old Nov 06, 2010, 08:23 PM
dbc
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United States, FL, Brooksville
Joined Apr 2008
1,737 Posts
Glad it worked for you!

I just took my DC3 out for a flight and realized how much I enjoy it. It now has logged 49 flights with absolutely no problems.

Love the resonance of the two motors at part throttle on low, eye level fly-bys!
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Old Nov 06, 2010, 10:11 PM
Vertical
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Joined Sep 2010
202 Posts
Some photos of HBPD stock DC-3. I took them this Friday morning. 11-5-2010. It was a great Southern CA day. Because of HBPD and Bladehead I purchased one, just airframe for 49.99 plus 10% off for a holiday discount.

HBPD glad I did not crash her when you handed me the controls. Thank you so much for the stick time, I look forward to building mine up early 2011.
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