Search: Posts Made By: ddlawrence
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09-29-2022, 08:36 AM
Replies: 7
Views: 143
Posted By ddlawrence

wow that is so cheap! i have a small cnc that i...

wow that is so cheap! i have a small cnc that i built for about $1000 2 years ago.
i will consider getting a laser when my financial situation improves.

i build bigger models so the ability...
09-26-2022, 09:40 AM
Replies: 7
Views: 143
Posted By ddlawrence

i just had a look at the specs. man that is...

i just had a look at the specs. man that is cheap! do you need to sand away the burnt edges when gluing parts together?
09-26-2022, 09:17 AM
Replies: 7
Views: 143
Posted By ddlawrence

do you think it can cut poplar ply or mahogany...

do you think it can cut poplar ply or mahogany ply, 1/8" thick, fine like that? how about 1/4"?
04-19-2022, 07:44 AM
Replies: 14
Views: 7,863
Posted By ddlawrence

yeah, I like that!

yeah, I like that!
04-18-2022, 12:14 PM
Replies: 14
Views: 7,863
Posted By ddlawrence

Cute parasol! Did this design exist full scale?

Cute parasol! Did this design exist full scale?
03-25-2022, 03:44 PM
Replies: 4
Views: 3,739
Posted By ddlawrence

Flight Tests completed, CNC cut files posted

I got the flight testing and tweaking done on the second version.
I had her out on a windy day. She is a good sloper.

She has plenty of roll authority now, good handling characteristics and no...
12-14-2021, 07:20 AM
Replies: 2
Views: 3,306
Posted By ddlawrence

nice plane, nice place!

nice plane, nice place!
12-14-2021, 07:09 AM
Replies: 3
Views: 1,141
Posted By ddlawrence

Hi. Instead of z-bends, just use 2-56...

Hi.
Instead of z-bends, just use 2-56 threaded rod and nylon clevises on both ends.
They thread right in there no problem.
They are much better to adjust and are more secure.
On the...
11-29-2021, 07:30 AM
Replies: 21
Views: 8,014
Posted By ddlawrence

Wow that is tiny. What is the all-up weight of...

Wow that is tiny. What is the all-up weight of the system (camera, transmitter, antenna, gps etc...)?

Also, what about interference with the RC-receiver at high transmit power?
Does that...
11-28-2021, 08:14 AM
Replies: 21
Views: 8,014
Posted By ddlawrence

What is the max range of your FPV h/w?

What is the max range of your FPV h/w?
11-23-2021, 08:26 PM
Replies: 21
Views: 8,014
Posted By ddlawrence

That little wing made from flat panels and the...

That little wing made from flat panels and the little EDF can carry all those electronics?
I did FPV 12 years ago. It was exciting, but not easy.
11-16-2021, 09:03 AM
Replies: 3
Views: 4,489
Posted By ddlawrence

Dude, give us some details! Did you build a...

Dude, give us some details!
Did you build a quarter-scale yet?
11-15-2021, 01:15 PM
Replies: 4
Views: 3,739
Posted By ddlawrence

I am doing a build blog over on RCgroups.com,...

I am doing a build blog over on RCgroups.com, called "NASA/Bowers Flying Wing Build Log"
Anyone building/designing Horten-style 'wings might find it interesting.
I am grappling with lots of...
11-09-2021, 08:36 AM
Replies: 12
Views: 2,320
Posted By ddlawrence

I used document laminating film by 3M on many...

I used document laminating film by 3M on many lightweight models. It is cheap and light light light.
Some guy sells it under another name, I can't remember his website.

It has the ability...
10-19-2021, 05:32 AM
Replies: 4
Views: 3,739
Posted By ddlawrence

Yes, I am building version 2 now. Many changes. ...

Yes, I am building version 2 now. Many changes. I will post them in a month of 2.
10-16-2021, 05:19 PM
Replies: 4
Views: 3,739
Posted By ddlawrence

My current project

I am working on a 1.6m version of NASA/Bowers/BSLD/Prandtl-D flying wing.
I got it flying after half a dozen crashes, most of which were CG related.
Still working out the bugs. It needs more roll...
10-16-2021, 05:11 PM
Replies: 37
Views: 9,709
Posted By ddlawrence

Yeah, the first time I got airborne, she went...

Yeah, the first time I got airborne, she went straight up. I chopped the throttle. She came straight down tail first!
Massively tailheavy!
10-16-2021, 05:08 PM
Replies: 37
Views: 9,709
Posted By ddlawrence

You need a lot of washout in the wings, 8...

You need a lot of washout in the wings, 8 degrees.

I am working on a NASA/Bowers flying wing with 12 degrees washout.

Test glide it by launching it as fast as you can into tall grass or...
10-13-2021, 05:32 PM
Replies: 5,526
Views: 1,187,631
Posted By ddlawrence

My Current Project

I am working on a 1.6m version of NASA/Bowers/BSLD/Prandtl-D flying wing.
I got it flying after half a dozen crashes, most of which were CG related.
Still working out the bugs. It needs more...
10-11-2021, 08:50 AM
Replies: 5,526
Views: 1,187,631
Posted By ddlawrence

Are there electrics light enough to do this? u...

Are there electrics light enough to do this? u got a link?
10-09-2021, 07:21 AM
Replies: 2
Views: 1,724
Posted By ddlawrence

Very nice bird. Good CAD work. It looks very...

Very nice bird. Good CAD work. It looks very strong.
10-09-2021, 07:11 AM
Replies: 5,526
Views: 1,187,631
Posted By ddlawrence

Hi all. I built and flew scale rubber as a kid. ...

Hi all. I built and flew scale rubber as a kid. Now I am back into the hobby with an interest in electrics built like the old stick and tissue way, adapted with modern electronics.
Showing results 1 to 22 of 22


 
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