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Search: Posts Made By: Jimbonk
Showing results 1 to 25 of 86
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Forum: Brushed/Brushless motors, speed controls, gear drives
12-29-2015, 01:36 PM
Replies: 4
Views: 760
Posted By Jimbonk

The old and larger versions of the Aveox and...

The old and larger versions of the Aveox and Kontronik ( in runners ) were pretty "Coggy" . The larger ones were almost impossible to rotate by Hand. When Aveox went out of the Model Airplane Motor...
Forum: RC Gliders, Sailplanes and Slope Soaring
07-31-2015, 02:56 AM
Replies: 28
Views: 15,198
Posted By Jimbonk

Going back some 20 years ago I heard the same...

Going back some 20 years ago I heard the same comment from several different glow Pilots while flying my full house ( six servo) 3 meter SailPlane , "wow this flies just like a real plane ( meaning...
Forum: Questions and Answers
12-31-2013, 12:42 PM
Replies: 76
Views: 6,308
Posted By Jimbonk

On some reasonable budget ? Small 10" bandsaw...

On some reasonable budget ? Small 10" bandsaw will zip thru 3/4 basswod/spruce and even make short work of maple and oak . Prices are around $ 200.00/285.00 range with used ones for even less. Need...
Forum: RC Gliders, Sailplanes and Slope Soaring
12-19-2013, 01:21 AM
Replies: 15
Views: 6,844
Posted By Jimbonk

30+ years ago Radio gear was very expensive and...

30+ years ago Radio gear was very expensive and had pretty limited functions. Designers got around the pricey and limited radios by using some pretty elegant designs. I had a Mike Smith design called...
Forum: Composites Fabrication And Repair
03-29-2010, 03:59 PM
Replies: 22
Views: 3,108
Posted By Jimbonk

RE: When vacum bagging goes wrong!

In all the years i have been bagging wings I never used a switch but a bleeder valve to control the level of Vacuum. Never had to worry about how good the seal was in the bag opening, just adjust the...
Forum: RC Gliders, Sailplanes and Slope Soaring
03-31-2009, 08:31 AM
Replies: 10
Views: 9,974
Posted By Jimbonk

RE: how to make a tow hook?

The simplest and best hook you can make with simple tools is made from a Hardware Store L-Hook. An L-Hook has a lag screw thread for a very strong hold in wood, and a #10 size ( approx 3/16" dia ) is...
Forum: RC Gliders, Sailplanes and Slope Soaring
03-31-2009, 07:50 AM
Replies: 1
Views: 1,794
Posted By Jimbonk

RE: Slope Flying Sites in Southern New England?

Check the Rhode Island Soaring Club site for Info on two sites in RI , one is at the tip of Jamestown ( foamy flying as the landing area is nasty with Iron and Concrete) and the other at Fort Adams...
Forum: RC Gliders, Sailplanes and Slope Soaring
03-09-2009, 11:38 AM
Replies: 3
Views: 913
Posted By Jimbonk

RE: TD Task Competition help.

TD Competition Basics.
Get Out there and Fly a WHOLE LOT!! There is not a single WC or runner up that doesn't have a gazillion hours of stick time in all kinds of weather.
While you may only...
Forum: RC Gliders, Sailplanes and Slope Soaring
03-01-2009, 10:54 PM
Replies: 12
Views: 1,839
Posted By Jimbonk

RE: Alternate Launch Technique Idea

My first pc. of advice is to spend some $$ and take a ride around and look for some dirt roads running in the right wind direction for use with a Highstart. Landing in a Large field of Corn is not...
Forum: E-Flight Power Sources
01-11-2009, 05:52 PM
Replies: 4
Views: 643
Posted By Jimbonk

RE: Largest brushess motors

Try Castle Creations. ( yes the Speed Control Guys ) . They are working on an entire line of Brushless Motors. I saw some of them at the Neat Fair and some of them where Scary Big.

Jim B
Forum: RC Gliders, Sailplanes and Slope Soaring
10-17-2006, 06:45 PM
Replies: 2
Views: 2,515
Posted By Jimbonk

RE: eHawk 2000 or Soaring Star

If the Color Scheme on the E-Hawk is that all white with a little blue on the tips then I would go with the other Plane. Imagine those same two planes 400-500 meters away from you, it's not hard to...
Forum: Composites Fabrication And Repair
03-21-2005, 09:18 AM
Replies: 1
Views: 1,011
Posted By Jimbonk

RE: Swept back wing main spar/layer Q

Peter , after looking at the picture of the Flying Wing you want to build , I think putting a Spar in the wing is simple. Keeping that Wing from twisting is a far more difficult problem. Torsional...
Forum: Composites Fabrication And Repair
03-18-2005, 09:19 AM
Replies: 13
Views: 1,664
Posted By Jimbonk

RE: Glass over Rohacell

Dave, my first piece of advice is to hide the .7 oz glass cloth on the Shelf and get yourself some 1.5 -2.0 oz glass cloth. Most Builders have something less than baby smooth hands, and just working...
Forum: Composites Fabrication And Repair
03-16-2005, 11:39 AM
Replies: 5
Views: 1,239
Posted By Jimbonk

RE: fiberglass cloth

For a "Stiff" part you pretty much want to go with Multiple Layups of lighter cloth layed up at 0 deg. +45 deg. , and -45 deg. To get a "Stronger" part use S Glass in place of the Normal E Glass...
Forum: Composites Fabrication And Repair
03-16-2005, 11:29 AM
Replies: 17
Views: 3,713
Posted By Jimbonk

RE: Industrial Vacumm PUmp

You should be able to pick up a decent Gast Diaphram Vacuum Pump for $300-400.00 . At this price you should be able to run it for 12-24 hours continuously. I'm not really sure what you need 25 in mg...
Forum: Composites Fabrication And Repair
03-03-2005, 08:56 AM
Replies: 3
Views: 783
Posted By Jimbonk

RE: Key composite suppliers to the aerospace industry

Ken , The Aircraft Manufacturers pretty much all use Prepregs ( Carbon, Kevlar, S Glass, etc. ). Most companies doing Model Aircraft are doing Room Temperature curing materials. A few Companies that...
Forum: Composites Fabrication And Repair
03-02-2005, 06:09 AM
Replies: 2
Views: 1,088
Posted By Jimbonk

RE: Looking for a Mold Maker - For Hire

Can you give us a Hint as to the overall size of this part. It might make a difference.

Jim Bonk
Forum: RC Gliders, Sailplanes and Slope Soaring
06-23-2003, 07:31 AM
Replies: 12
Views: 1,518
Posted By Jimbonk

When the wind blows

I think what you really want is an "Old" F3B Plane. By old I mean an 8 or 10 year old design. It won't be really competitive any more , but that doesn't mean it that it will fly badly, in fact it's...
Forum: Composites Fabrication And Repair
06-22-2003, 04:04 PM
Replies: 3
Views: 1,059
Posted By Jimbonk

How shoudl I fiberglass a fuselage

Read the First Paragraph in Larry's Reply again and commit it to Memory! Fiberglassing a Fuse with lightweight Glass Cloth and Epoxy WILL NOT Hide any imperfections bigger than a Pin Hole!
...
Forum: Brushed/Brushless motors, speed controls, gear drives
06-20-2003, 09:46 AM
Replies: 5
Views: 1,178
Posted By Jimbonk

Needed expertise on electrics

I would strongly recommend AGAINST trying to "Electifiy" a wet power airplane that needs to be rebuilt. Starting from "scratch" , well that's a different story all together. Due to the "inefficiency"...
Forum: RC Gliders, Sailplanes and Slope Soaring
06-12-2003, 09:48 AM
Replies: 7
Views: 2,872
Posted By Jimbonk

I need an advice .... which is the best electro sailplane/glider on the market?

Helmut , you are looking for something that really does not exist. RTF models are done on a budget, a very tight budget.

There are some Mail Order places that will happily set you up with a...
Forum: RC Gliders, Sailplanes and Slope Soaring
06-12-2003, 08:41 AM
Replies: 5
Views: 1,041
Posted By Jimbonk

Soldering ball links on elevator

Are you using the wrong Solder ? Well the answers is Yes. Get a Stay-Brite solder Kit from your local Hobby Shop or Mail Order. Once you use this solder you will never want to use anything else for...
Forum: Composites Fabrication And Repair
05-31-2003, 12:43 PM
Replies: 12
Views: 1,403
Posted By Jimbonk

Comparisons of plug construction

A5fly, you might want to try this idea. Using some thin ( like .005-.007 ) thick mylar as carryers bag a layer of glass cloth onto the wings. You will still have to deal with the LE's but the rest of...
Forum: Composites Fabrication And Repair
05-31-2003, 12:35 PM
Replies: 9
Views: 1,248
Posted By Jimbonk

polyester vs. epoxy

I think the Problem here is that people are getting confused or misusing the term "Structural Adhesive " . Polyester is a poor Strut. Adhes. Epoxy is a good one.

Getting back to the original...
Forum: RC Gliders, Sailplanes and Slope Soaring
05-31-2003, 12:10 PM
Replies: 2
Views: 1,012
Posted By Jimbonk

Amethyst Builders/Flyers???

Jared , you will have to trust me when I tell you that if you break .050 or .060 dia CF rods used as pushrods in the tail you will have far more serious problems than replacing two pushrods. ( like a...
Showing results 1 to 25 of 86
 
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