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Showing results 1 to 29 of 29
Search took 0.01 seconds. Search: Posts Made By: martyp57
Forum: Batteries & Chargers 04-03-2012, 10:45 PM
Replies: 22
Views: 2,525
Posted By martyp57
Hey Stu, sorry for the delay in replying,...

Hey Stu,
sorry for the delay in replying, eventually plumped for a Graupner Ultramat 18 and a Graupner PSU to fire it up, quality Germanic engineering I have to say, actually I had some bad reports...
Forum: Batteries & Chargers 01-29-2012, 09:29 AM
Replies: 22
Views: 2,525
Posted By martyp57
Thanks for that information, after an evenings...

Thanks for that information, after an evenings research I had managed to get as far as the 8.8mAh and 17amps, but hadn't realised the implication of this was a 1000w charger and a 24v power supply!...
Forum: Batteries & Chargers 01-23-2012, 11:29 PM
Replies: 22
Views: 2,525
Posted By martyp57
Charging multiple Lipo's

I need to charge four 2200 mAh 3s 25c lipo batteries and would like to charge them all at the same time. I've tried to read up about chargers, watts, charging current, parallel and balance boards and...
Forum: Off Topic Chit Chat 08-27-2011, 03:19 PM
Replies: 25,725
Views: 1,220,953
Posted By martyp57
Theatre Operation

Theatre

Operation
Forum: ParkFlyers 08-27-2011, 11:30 AM
Replies: 36
Views: 4,477
Posted By martyp57
I'm struggling with the Hawksky at the moment,...

I'm struggling with the Hawksky at the moment, maybe I don't have the CoG set up quite right, but I find it a handfull, even in light winds.
I can only use my glo trainer at the flyingfield but it's...
Forum: ParkFlyers 08-01-2011, 02:07 PM
Replies: 36
Views: 4,477
Posted By martyp57
Good call Flying Brick, didn't think of that, I...

Good call Flying Brick, didn't think of that, I keep all the black ground wiress facing the same way, with the futaba gear you can only connect them one way as the servo plug has a little tab on one...
Forum: ParkFlyers 08-01-2011, 09:50 AM
Replies: 36
Views: 4,477
Posted By martyp57
If you've tried swapping the servos about and...

If you've tried swapping the servos about and can't get the wing ones to work at all looks like you'll have to fork out for some new ones.
Very strange that they should pack up so soon though. have...
Forum: ParkFlyers 07-31-2011, 09:31 PM
Replies: 36
Views: 4,477
Posted By martyp57
You've got the aileron servos connected to the...

You've got the aileron servos connected to the Y-lead located in the fuselage between where the wings fit, and the Y-lead is connected to the correct postion in the receiver. Have you tried...
Forum: ParkFlyers 07-30-2011, 11:39 PM
Replies: 36
Views: 4,477
Posted By martyp57
As long as the charger or battery don't feel hot...

As long as the charger or battery don't feel hot ( warm is okay) just keep it charging until the red light turns green, it might take up to 12hours or longer. If the lights don't change after that it...
Forum: ParkFlyers 05-12-2011, 09:15 PM
Replies: 36
Views: 4,477
Posted By martyp57
Hi sadman, welcome to Wattflyer too, sounds like...

Hi sadman, welcome to Wattflyer too, sounds like your doing better than me with your Hawksky, I've had mine up a couple of times now and the ground came up and hit me very hard each time. It's a lot...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 04-01-2011, 10:17 AM
Replies: 22
Views: 1,578
Posted By martyp57
For your information the offsets settings for...

For your information the offsets settings for mixes 1 to 5 in order are +6, -47, -100, +29 and +53.
I think using your calculations that this equates to aggregate settings of +59, +35, +6, -18, -47...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 03-31-2011, 10:07 PM
Replies: 22
Views: 1,578
Posted By martyp57
I've done it! :D:D:D With a little...

I've done it! :D:D:D

With a little adjustment to the mixes whilst connected to Arduino, I just dialed in the required offsets to achieve the PWM readings that I required.
I've got all six and can...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 03-31-2011, 08:53 PM
Replies: 22
Views: 1,578
Posted By martyp57
OK, first thanks for the full and very helpful...

OK, first thanks for the full and very helpful explanation and I can now report a good measure of success. :D
Using your values of -71, -43 -14 for switch E and 0 , +85 for switch F gives me PWM...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 03-30-2011, 07:16 PM
Replies: 22
Views: 1,578
Posted By martyp57
Hooked it all up and I get PWM readings of 2071,...

Hooked it all up and I get PWM readings of 2071, 1521 and 973 (forward, middle and back) with 3 position switch E which I have assigned to channel 7. I've been looking at the mixing programmmes but...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 03-30-2011, 09:31 AM
Replies: 22
Views: 1,578
Posted By martyp57
Many thanks for all this information, I now...

Many thanks for all this information, I now understand things a bit better! What I didn't tell you is that the Arduino software has a mode for testing the radio outputs so I can use this to monitor...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 03-29-2011, 09:47 PM
Replies: 22
Views: 1,578
Posted By martyp57
Larry, I haven't tried the multiple mixes yet,...

Larry, I haven't tried the multiple mixes yet, TBH I'm not really sure what I am trying to achieve.
I'm not controlling a servo, I'm using the 3 position switch to send a signal via the receiver to...
Forum: RC Radios, Transmitters, Receivers, Servos, gyros 03-22-2011, 07:09 PM
Replies: 22
Views: 1,578
Posted By martyp57
Futaba 9C switch mixing

Hi all,

I'm new to the Futaba 9C and would like to mix one of the two position switches and a three position switch to give a six position switch. All on the same channel. That is three positions...
Forum: Aerial Photography 12-18-2010, 06:08 PM
Replies: 35
Views: 2,819
Posted By martyp57
This is the bit that I was struggling with trying...

This is the bit that I was struggling with trying to identify which compact cameras have an IR shutter trigger. The camera manufacturers websites do not make this sort of information very easy to...
Forum: Aerial Photography 12-17-2010, 08:49 PM
Replies: 35
Views: 2,819
Posted By martyp57
The Cropcam that I have been looking at uses a...

The Cropcam that I have been looking at uses a light pulse triggered by the autopilot to operate the infra-red shutter sensor on the compact camera (a pentax) rather than a servo.
I understand that...
Forum: Aerial Photography 12-05-2010, 03:13 PM
Replies: 9
Views: 1,792
Posted By martyp57
I can now use the thanks button, once I realised...

I can now use the thanks button, once I realised that you have to be logged in for it to be visible :ws:
Forum: Aerial Photography 12-04-2010, 09:27 PM
Replies: 35
Views: 2,819
Posted By martyp57
I have seen the eight bladed hovercam which can...

I have seen the eight bladed hovercam which can lift an SLR, but it costs 20,000 of your US dollars. :<:
I also want the capability of taking multiple shots in sequence to stitch together to form...
Forum: Aerial Photography 12-04-2010, 09:21 PM
Replies: 35
Views: 2,819
Posted By martyp57
Was really trying to maximise the quality of the...

Was really trying to maximise the quality of the images and was thinking of an SLR because they have larger digital receptors that compacts that was all. How do you activate the shutter on your point...
Forum: Aerial Photography 12-04-2010, 09:17 PM
Replies: 35
Views: 2,819
Posted By martyp57
Would you be able to explain the concept of wing...

Would you be able to explain the concept of wing loading in more detail to me please.
:)
Forum: Aerial Photography 12-04-2010, 09:08 PM
Replies: 35
Views: 2,819
Posted By martyp57
I want to take a high quality image of an area of...

I want to take a high quality image of an area of ground of 20' x 20' and will choose a camera that can capture an image of say 30' x 30' to allow for positioning error. I may use some sort of gimbal...
Forum: Aerial Photography 12-03-2010, 11:41 AM
Replies: 35
Views: 2,819
Posted By martyp57
Thanks for that, I am sure that I can get a big...

Thanks for that, I am sure that I can get a big enough sailplane to handle that sort of weight, in fact the weight might even help the inflight stability too. I was just keen to approach it from an...
Forum: Aerial Photography 12-02-2010, 08:49 PM
Replies: 35
Views: 2,819
Posted By martyp57
Thanks Nito Blast, The CropCam that I've been...

Thanks Nito Blast,
The CropCam that I've been looking at has a 2m wingspan and carries 4 lipo batteries and a compact camera weighing 180grams velcrowed under the wing in a camera box, so was...
Forum: Aerial Photography 12-02-2010, 04:26 PM
Replies: 35
Views: 2,819
Posted By martyp57
Help with payload calculation

Hi all,
Could someone on the forum take the time to explain to me how I could evaluate the potential load carrying capacity of a model aircraft, an electric sailplane for example.
What information...
Forum: Aerial Photography 10-12-2010, 01:51 PM
Replies: 9
Views: 1,792
Posted By martyp57
Cropcam sailplane operators

Thanks both for your quick reply, if someone could remind me how to post a thank you I'll do so in the future! :D

I would also like to ask if anyone on the forum has experience of flying a...
Forum: Aerial Photography 10-11-2010, 10:46 PM
Replies: 9
Views: 1,792
Posted By martyp57
Cropcam UAV

Hi all, I'm a complete newbie to aerial phtography and would like to ask if anyone can tell me the manufacturer and model of glider that cropcam use for their UAV.
Showing results 1 to 29 of 29

 
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