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Forum: "1/2 A" & "1/8 A" airplanes

01-21-2008, 02:42 AM

Replies: 924

Sticky Building and flying the LST 1/2A Trainer

Views: 236,668

Posted By David Ingham

RE: 1/2A trainer anyone?

Why is this thread sticky?

Forum: "1/2 A" & "1/8 A" airplanes

12-20-2007, 11:57 PM

Replies: 924

Sticky Building and flying the LST 1/2A Trainer

Views: 236,668

Posted By David Ingham

RE: 1/2A trainer anyone?

Sorry, the title and especially its being sticky lead me to think it was a general discussion of 1/2A RC trainers. Don't worry about saving my posts, I will know more later.

Forum: "1/2 A" & "1/8 A" airplanes

12-18-2007, 01:44 AM

Replies: 924

Sticky Building and flying the LST 1/2A Trainer

Views: 236,668

Posted By David Ingham

RE: 1/2A trainer anyone?

Another problem about building on such a small scale is that when I drop parts on the rug I often can't see them.

Forum: "1/2 A" & "1/8 A" airplanes

12-16-2007, 11:16 PM

Replies: 924

Sticky Building and flying the LST 1/2A Trainer

Views: 236,668

Posted By David Ingham

RE: 1/2A trainer anyone?

I lost another airplane! My Keith Laumer Pushup flew away again, and this time we didn't find it.
I took my grown son to the field that skaliwag showed me. I was starting and launching and he was...

Forum: "1/2 A" & "1/8 A" airplanes

11-30-2007, 10:13 PM

Replies: 924

Sticky Building and flying the LST 1/2A Trainer

Views: 236,668

Posted By David Ingham

RE: 1/2A trainer anyone?

I added a little carbon fiber to my Push Up when I re-built it after diving onto the street, but I have little experience in using it. It worked fine fixing my prescription glass diving mask.
The...

Forum: "1/2 A" & "1/8 A" airplanes

11-07-2007, 01:58 AM

Replies: 924

Sticky Building and flying the LST 1/2A Trainer

Views: 236,668

Posted By David Ingham

RE: 1/2A trainer anyone?

Yes, I know that Sure Starts are $6.99 from Cox Hobby Distributors. I like the tank mounts, but I got three for spare parts.
I fooled a little once with powering a big light free flight styrofoam...

Forum: "1/2 A" & "1/8 A" airplanes

11-05-2007, 11:45 PM

Replies: 924

Sticky Building and flying the LST 1/2A Trainer

Views: 236,668

Posted By David Ingham

RE: 1/2A trainer anyone?

Yes I chose a free flight design, high wing, high fuselage, and whatever, because I figure having flown a lot of rubber powered planes, I should be able to trim it, and set the travel of the control...

Forum: "1/2 A" & "1/8 A" airplanes

11-03-2007, 12:10 AM

Replies: 924

Sticky Building and flying the LST 1/2A Trainer

Views: 236,668

Posted By David Ingham

RE: 1/2A trainer anyone?

Yes, I think it is harder to build on a smaller scale. I am fortunate to be short sighted. There are reading glasses, and there are magnifying glasses and min-binoculars, to attach to glasses, that...

Forum: "1/2 A" & "1/8 A" airplanes

10-28-2007, 11:57 PM

Replies: 924

Sticky Building and flying the LST 1/2A Trainer

Views: 236,668

Posted By David Ingham

RE: 1/2A trainer anyone?

Here is Pushup fixed. The splined part of the crank that takes the drive washer is broken, so I put on my spare Peewee. First time I have broken A Cox reedie. I experimented by adding some carbon...

Forum: "1/2 A" & "1/8 A" airplanes

10-28-2007, 02:38 AM

Replies: 924

Sticky Building and flying the LST 1/2A Trainer

Views: 236,668

Posted By David Ingham

RE: 1/2A trainer anyone?

Looks good, Avroarrow. What type of construction is it? What is its goal?
I have tried reinforcing my balsa Push-up with a bit of carbon fiber, but, as a casual add-on, it may not add much...

Forum: "1/2 A" & "1/8 A" airplanes

10-24-2007, 01:20 AM

Replies: 924

Sticky Building and flying the LST 1/2A Trainer

Views: 236,668

Posted By David Ingham

RE: 1/2A trainer anyone?

Thanks Tri-pacer, Most of the damage is at the 4th station where it becomes lighter. If I can get it straight, it should not be as bad as I thought. Will need refitting and recovering. The wing is...

Forum: "1/2 A" & "1/8 A" airplanes

10-23-2007, 02:13 AM

Replies: 924

Sticky Building and flying the LST 1/2A Trainer

Views: 236,668

Posted By David Ingham

RE: 1/2A trainer anyone?

The most serious problem, as an elementary trainer, seems to be too much power. Either it didn't slow down with the needle valve as well in the field as on the bench or I got carried away. By bad...

Forum: "1/2 A" & "1/8 A" airplanes

09-24-2007, 12:09 AM

Replies: 924

Sticky Building and flying the LST 1/2A Trainer

Views: 236,668

Posted By David Ingham

RE: 1/2A trainer anyone?

Fortunately, I found, before I flew it, that the watch batteries don't have enough average current capacity to work the Cox receiver (Rx) and servos for long. I now have two of the smallest camera...

Forum: "1/2 A" & "1/8 A" airplanes

09-17-2007, 04:52 PM

Replies: 924

Sticky Building and flying the LST 1/2A Trainer

Views: 236,668

Posted By David Ingham

RE: 1/2A trainer anyone?

I bought two CR2032 3 V watch cells and soldered them in series. They do power the Rx and servos. The electrics draw 50 mA steady with bursts over 100 when moving the tail. The Li cells are rated...

Forum: "1/2 A" & "1/8 A" airplanes

09-17-2007, 04:06 AM

Replies: 924

Sticky Building and flying the LST 1/2A Trainer

Views: 236,668

Posted By David Ingham

RE: 1/2A trainer anyone?

I get 91 in2. wing area for my plan.
The engine is around 0.80, or at least less than an ounce.
The fuselage is 1.1 oz before covering.
Plus the wing and tail.
You say 1.3 for the old...

Forum: "1/2 A" & "1/8 A" airplanes

09-17-2007, 02:29 AM

Replies: 924

Sticky Building and flying the LST 1/2A Trainer

Views: 236,668

Posted By David Ingham

RE: 1/2A trainer anyone?

Thanks skaliwag.
Yes, the manual says it cuts the motor in time to land. I will be left with only testing the voltage between flights.
(I have gathered that lipos don't like to be fully...

Forum: "1/2 A" & "1/8 A" airplanes

09-16-2007, 10:31 PM

Replies: 924

Sticky Building and flying the LST 1/2A Trainer

Views: 236,668

Posted By David Ingham

RE: 1/2A trainer anyone?

I used to do a lot of control line and rubber power maybe 20 years ago, but am completely new to RC, so I need a trainer. I am building Keith Laumer's Push-Up, slightly reduced in size, as I have...

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