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Search: Posts Made By: Lou Crane
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Forum: Glow Engines
12-12-2020, 12:41 PM
Replies: 20
Views: 1,899
Posted By Lou Crane

MDS engine

Just on a chance, I checked "MDS model engine' on Wikipedia. It took me right to MDS website. The Owners' Manual is there. Very probably it could help your problem.
Luck!
\LOU
12-05-2020, 01:18 PM
Replies: 6
Views: 2,801
Posted By Lou Crane

I 've mentioned a few times that John Deere SF...

I 've mentioned a few times that John Deere SF lists 7(or 8) ounces of diethyl ether. ( I don't recall if it lists a metric equivalent.) If it is avoirdupois ounces, that measures weight, not volume....
Forum: Control Lines
10-10-2020, 02:12 PM
Replies: 10
Views: 4,410
Posted By Lou Crane

Chuck and PaulWells - AMA's rules are available...

Chuck and PaulWells -
AMA's rules are available on their site. The current line specs are in Control Line General section. They are general standards. Specific contest event rules require lines...
11-22-2019, 10:32 AM
Replies: 23
Views: 12,423
Posted By Lou Crane

Agreed, but... "fps" is my native language, and...

Agreed, but...
"fps" is my native language, and still exists in general use, at least here in the USA. John Deere cans are labeled in both systems. Despite some canny (pun) maneuvering* by several...
11-21-2019, 11:04 AM
Replies: 23
Views: 12,423
Posted By Lou Crane

The problem may be what we understand by "ounce."...

The problem may be what we understand by "ounce."

Our ether has a specific gravity of about 0.8. So, 10 fluid ounces weighs 8 avoirdupois ounces. We usually (always?) mix by volume. Fluid ounces...
Forum: Control Lines
09-17-2018, 03:02 PM
Replies: 21
Views: 5,497
Posted By Lou Crane

Topic has been quiet for about a month, now. Any...

Topic has been quiet for about a month, now. Any progress?

I have a lot of magazines with stunt model articles, and many more copies of articles I don't have the mags for. Bulky stuff, the copies...
09-15-2018, 04:09 PM
Replies: 91
Views: 9,971
Posted By Lou Crane

Actually, the idea of seeing the hot glow was a...

Actually, the idea of seeing the hot glow was a random thought. In the early '70s I was in Nebraska. We had a fine, paved circle in a truck overflow parking lot for a large motel. Railroads and local...
09-14-2018, 03:10 PM
Replies: 91
Views: 9,971
Posted By Lou Crane

Diesel combustion chamber form...

I've re-read the thing again, and at least glanced at the images to refresh...

About the combustion pressure on cylinder interior surfaces - of course it is ideally equal everywhere and...
Forum: Control Lines
08-16-2018, 11:32 AM
Replies: 21
Views: 5,497
Posted By Lou Crane

Another thought: fuel tank location - presuming...

Another thought: fuel tank location - presuming you'll use a separate tank engine, align the tank relative to the direction of flight... ...NOT to the engine thrust line.

I don't know if an...
Forum: Control Lines
08-13-2018, 11:30 AM
Replies: 21
Views: 5,497
Posted By Lou Crane

Aha! Sounds good, and the structure looks light...

Aha!
Sounds good, and the structure looks light enough for a single modern 0.049 or 0.061 to carry.
Think about where the CG will be. It is better for a first flight to be definitely nose-heavy,...
Forum: Control Lines
08-12-2018, 11:43 PM
Replies: 21
Views: 5,497
Posted By Lou Crane

.Dinner was great, and the evening wandered way...

.Dinner was great, and the evening wandered way off topic.

At the 'centroid,' the area to the right is the same as the area to the left. A cutout of the wing shape on a uniform weight thing like,...
Forum: Control Lines
08-12-2018, 03:50 PM
Replies: 21
Views: 5,497
Posted By Lou Crane

Very nice work! Looks like 35" to a bit over...

Very nice work!

Looks like 35" to a bit over 40" total span... Close?

4 0.049s will certainly haul a model that size! I presume you intend to mount them on the pods? Possibly sidewinder with...
Forum: Control Lines
08-11-2018, 01:32 PM
Replies: 21
Views: 5,497
Posted By Lou Crane

To Ward's #10

I hope my long note(Post #12) about the curve of the flying lines in flight makes sense. We don't really need the model to actually be yawed away from us! In more or less "normal" flight, the model...
Forum: Control Lines
08-11-2018, 12:58 PM
Replies: 21
Views: 5,497
Posted By Lou Crane

bellcrank and leadouts

Glad to have engineers in on this. In flight, the lines form an accelerated catenary due to their air drag. For the non-math types, a catenary curve is the form of a rope suspended at both ends....
Forum: Control Lines
07-18-2018, 05:17 PM
Replies: 15
Views: 7,040
Posted By Lou Crane

TO: JPMacG, Post #1. It might help to have some...

TO: JPMacG, Post #1.
It might help to have some FAA documentation along, and a polite buddy to explain it to Officer "Friendly" if he shows up uninformed and with a low tolerance for backtalk.
I...
05-23-2018, 01:35 PM
Replies: 91
Views: 9,971
Posted By Lou Crane

Hi, all.... First time I looked through this...

Hi, all....
First time I looked through this topic, and went all the way back to post #1... an enjoyable, if a bit long, task.

RE: Baffled piston diesel engines: I had an OS 15D in the 1950's. It...
03-23-2018, 11:44 AM
Replies: 3
Views: 689
Posted By Lou Crane

Walther, I'd go with Hobbsy's suggestion. The NV...

Walther, I'd go with Hobbsy's suggestion. The NV guy may have had in mind that the engines are designed for more RPM than most others. That suggests a smaller prop than you'd think - to let it rev....
Forum: Glow Engines
02-23-2018, 07:16 PM
Replies: 35
Views: 1,958
Posted By Lou Crane

Mufflers and engine run quirks

My experience may not address your problem, but it might just...

As far as leakage where the muffler attaches, a way to reduce or eliminate the problem is to 'face' both surfaces at the joint, so...
Forum: Control Lines
01-15-2018, 01:17 PM
Replies: 18
Views: 6,401
Posted By Lou Crane

Thread hinges can be the freest and have absolute...

Thread hinges can be the freest and have absolute minimum gap between fixed and moving surfaces. They are not particularly 'pretty,' tho.
The kind I refer are actually thread, sewn through holes...
Forum: Control Lines
01-15-2018, 12:47 PM
Replies: 204
Views: 56,965
Posted By Lou Crane

The mono-line system was most likely more to rid...

The mono-line system was most likely more to rid the model of the drag of the second line. Even with the solid wire single line of larger diameter than needed for two lines, there was a definite...
10-23-2017, 07:12 PM
Replies: 11
Views: 2,553
Posted By Lou Crane

A note on using anti-freeze... Until several...

A note on using anti-freeze...

Until several years ago, some of the anti-freeze available here in the USA was not suitable for use on alumin(I)um engine parts. Discoloration was mentioned and...
Forum: Control Lines
10-06-2017, 12:14 AM
Replies: 204
Views: 56,965
Posted By Lou Crane

There's U-Tube of the Disneyland flying circle...

There's U-Tube of the Disneyland flying circle action somewhere on the web. Saw it recently...

A member of my CL Club, Cholla Choppers of Tucson, flew for Disneyland for a while, Yeah, he was much...
Forum: Control Lines
09-21-2017, 10:05 PM
Replies: 14
Views: 2,423
Posted By Lou Crane

Dan, Most of us have had similar disasters... A...

Dan,
Most of us have had similar disasters... A little help from an experienced flier helps as much as it does in RC. Beginners always seem to be shy to let other see them fly until they become...
Forum: Control Lines
08-26-2017, 01:18 AM
Replies: 34
Views: 7,708
Posted By Lou Crane

BG,. getting late in the 2017 season... ...

BG,. getting late in the 2017 season...

Shall we try for 2018? :(

Personal opinion: The Cox PT's didn't fly well then, and won't now :(. What price nostalgia? Sure, it brings memories, but a...
Forum: Control Lines
08-26-2017, 01:03 AM
Replies: 23
Views: 6,750
Posted By Lou Crane

Flaps on popular profiles

Not only George Aldrich, re: Flite Streak, but Jim Silhavy, author of the Magician, who got "rather annoyed" when he saw one with flaps added. Word is he spoke sharply to such modelers when he...
Showing results 1 to 25 of 500
 


 
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