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Search: Posts Made By: whitecrest
Forum: Scratch and Kit Built Aircraft 07-07-2014, 04:46 PM
Replies: 13
Views: 279
Posted By whitecrest
Consider using Doculam for your project. It is a...

Consider using Doculam for your project. It is a laminating film that works well as an iron-on covering. I find that it shrinks very well and does not loosen over time. It will add considerable...
Forum: General Electric Discussions 02-12-2014, 04:19 PM
Replies: 44
Views: 1,329
Posted By whitecrest
I was hooked by those Guillows HLGs sold at drug...

I was hooked by those Guillows HLGs sold at drug stores for a dollar or two. You could adjust the flight characteristics by just moving the wing forward or back in a slot in the fuselage. Soon after,...
Forum: Power Systems 02-07-2014, 03:02 PM
Replies: 3
Views: 480
Posted By whitecrest
Try WeboCalc...

Try WeboCalc (http://flbeagle.rchomepage.com/software/webocalc_1.7.6/html/webocalc_imperial.html). Enter the number of props you want to drive and the other relevant data to calculate the power...
Forum: Foamies 01-02-2014, 11:51 AM
Replies: 5,567
Views: 344,122
Posted By whitecrest
Flying weather finally opened up in the late...

Flying weather finally opened up in the late afternoon of New Years day after days of high winds. Sunny, and temps in the chilly high 20's and nearly calm winds. Four nice flights before sunset....
Forum: Scratch and Kit Built Aircraft 12-20-2013, 06:46 PM
Replies: 8
Views: 509
Posted By whitecrest
Perhaps you can use these inserts in place of the...

Perhaps you can use these inserts in place of the nuts:
http://rtlfasteners.com/RC/q.html

Use with CA or epoxy for extra security.
Forum: General Electric Discussions 08-30-2013, 03:28 PM
Replies: 8
Views: 398
Posted By whitecrest
It does look like faulty data. You will get...

It does look like faulty data. You will get decreasing RPM with increased prop sizes for a given battery voltage.
Forum: ParkFlyers 03-07-2013, 11:43 AM
Replies: 10
Views: 1,280
Posted By whitecrest
+1. The GWS 3-inch wheels work well in grass, and...

+1. The GWS 3-inch wheels work well in grass, and the spokes don't break. Takeoffs are no problem on grass that is a little burned out or from a firm baseball infield. Also, a torsion-box style...
Forum: Beginners 02-13-2013, 04:50 PM
Replies: 12
Views: 980
Posted By whitecrest
Welcome to the forum! This...

Welcome to the forum!

This (http://www.hobbyking.com/hobbyking/store/__8833__Turnigy_Receiver_Controlled_Switch_.html) might fill the bill.

Electronics have advanced quite a bit. You should be...
Forum: General Electric Discussions 02-12-2013, 01:57 PM
Replies: 18
Views: 870
Posted By whitecrest
The motor/prop combination determines current...

The motor/prop combination determines current draw. The ESC needs to be sized to comfortably handle whatever that is. If the ESC is somewhat larger than necessary, that won't cause any problems. It...
Forum: General Electric Discussions 01-31-2013, 08:58 AM
Replies: 11
Views: 920
Posted By whitecrest
+1. Check out DriveCalc as well. Also, if...

+1. Check out DriveCalc as well.

Also, if you browse the conversion forums (glow to electric), you can see what components are being used for the type of plane you have in mind and various...
Forum: General Electric Discussions 01-21-2013, 11:49 PM
Replies: 17
Views: 1,065
Posted By whitecrest
That shouldn't cause any problems either. The ESC...

That shouldn't cause any problems either. The ESC should be fairly well protected in the fuselage, and freshwater condensation will not affect the motor. I'd dry everything out carefully after a wet...
Forum: General Electric Discussions 11-01-2012, 11:45 PM
Replies: 41
Views: 2,689
Posted By whitecrest
Here's...

Here's (http://www.flybrushless.com/motor/view/60) a link to the data.
Forum: General Electric Discussions 11-01-2012, 10:10 PM
Replies: 41
Views: 2,689
Posted By whitecrest
Here's a comparison of calculated thrust to test...

Here's a comparison of calculated thrust to test stand data from the FlyBrushless.com site for a random motor turning a few selected props:

EMax BL 2210/30 data from FlyBrushless.com

6x4 APC E...
Forum: General Electric Discussions 11-01-2012, 12:17 PM
Replies: 41
Views: 2,689
Posted By whitecrest
You could also measure RPM. Given a known prop...

You could also measure RPM. Given a known prop and RPM, you could use a calculator to get static thrust, output power and overall power system efficiency. Here's an example from DriveCalc's Simple...
Forum: General Electric Discussions 08-14-2012, 10:19 PM
Replies: 39
Views: 3,787
Posted By whitecrest
I started using a neck strap while slope soaring....

I started using a neck strap while slope soaring. It definitely reduces finger fatigue during some long flights and makes hand launching much easier.
Forum: Power Systems 08-14-2012, 08:53 PM
Replies: 12
Views: 994
Posted By whitecrest
Welcome to the forum. :) You may need to...

Welcome to the forum. :)

You may need to reverse the throttle servo. ESC may be getting a full-throttle signal and won't arm. I'd recommend removing the prop until you have reliable throttle...
Forum: Vintage and old timer models 08-14-2012, 04:58 PM
Replies: 5
Views: 1,340
Posted By whitecrest
You can get a close estimate using WeboCalc....

You can get a close estimate using WeboCalc. (http://flbeagle.rchomepage.com/software/webocalc_1.5.2/html/webocalc_imperial.html) Just plug in your plane's vital statistics (wing span, wing area, and...
Forum: General Electric Discussions 07-17-2012, 02:53 PM
Replies: 9
Views: 602
Posted By whitecrest
I've had good luck using Doculam. It's sold in...

I've had good luck using Doculam. It's sold in 500' rolls and turns clear as it's applied. It does not shrink with as much force as Monokote and is less likely to warp light structures. It is easily...
Forum: Beginners 05-17-2012, 09:33 PM
Replies: 31
Views: 2,503
Posted By whitecrest
Make sure the plane is not tail heavy. It should...

Make sure the plane is not tail heavy. It should balance about 25-30 percent of the wing chord measured from the leading edge. The instructions should mark the exact point.

Make sure the...
Forum: Beginners 05-10-2012, 10:39 PM
Replies: 2
Views: 459
Posted By whitecrest
Welcome to the forum. :) A good rule of...

Welcome to the forum. :)

A good rule of thumb is 100 watts per pound AUW. This will provide a steep climb and plenty of power for sport flying. Another good rule of thumb is to figure 3 watts per...
Forum: Aerodynamics 04-20-2012, 05:39 PM
Replies: 6
Views: 1,068
Posted By whitecrest
Given your wing dimensions, your plane's wing...

Given your wing dimensions, your plane's wing area will be 100 sq.in. which seems fairly small to implement flaps or ailerons. For planes of this size, rudder/elevator control with appropriate wing...
Forum: Power Systems 04-20-2012, 05:23 PM
Replies: 8
Views: 909
Posted By whitecrest
I built a micro Telemaster last year that is...

I built a micro Telemaster last year that is close to what you're contemplating. This model has a wing area of 210 sq.in., 36" wing span, and weighs 15 oz ready to fly. It is very well powered with a...
Forum: Aerodynamics 04-20-2012, 04:52 PM
Replies: 6
Views: 1,068
Posted By whitecrest
A little more information would be helpful. Are...

A little more information would be helpful. Are you attempting to build a traditional design or something different, perhaps with a canard in front?
Forum: General Electric Discussions 04-10-2012, 02:30 PM
Replies: 11
Views: 1,081
Posted By whitecrest
If you spin the motor up with another motor or...

If you spin the motor up with another motor or other driver, you should measure an equal AC voltage across each pair of motor wires. Also, if you short the wires of the disconnected motor together,...
Forum: Beginners 04-03-2012, 03:02 PM
Replies: 41
Views: 2,640
Posted By whitecrest
I always set the timer for 10 minutes. That's a...

I always set the timer for 10 minutes. That's a satisfying interval for me with good flight conditions. If it's very breezy or I'm running out of daylight, I'll shorten the flights and try to give...
Forum: Beginners 03-27-2012, 11:43 AM
Replies: 14
Views: 1,327
Posted By whitecrest
Soldering will produce some smoke as the rosin...

Soldering will produce some smoke as the rosin burns. That can be fairly pungent if there is not adequate ventilation. Perhaps that was the cause of your reactions.

People have also developed...
Forum: Beginners 01-13-2012, 02:18 PM
Replies: 11
Views: 871
Posted By whitecrest
Here's an illustration using an inexpensive DVM...

Here's an illustration using an inexpensive DVM that are widely available:
Forum: Scratch and Kit Built Aircraft 11-21-2011, 10:44 PM
Replies: 18
Views: 2,427
Posted By whitecrest
I've been using artist's acrylics in tubes....

I've been using artist's acrylics in tubes. They're easy to mix and thin with water. One brand is Amsterdam and the other is generic in unmarked tubes. The generic brand adhered readily to the film...
Forum: Scratch and Kit Built Aircraft 11-21-2011, 10:11 AM
Replies: 18
Views: 2,427
Posted By whitecrest
I've had good luck with it as well. Painting...

I've had good luck with it as well. Painting seemed to go much better after scuffing the surface with 000 steel wool. It shrinks well and doesn't sag over time. Some acrylics appear to bond to it...
Forum: Vintage and old timer models 11-11-2011, 10:27 PM
Replies: 28
Views: 3,352
Posted By whitecrest
I'd build it as shown by the plan. If you need...

I'd build it as shown by the plan. If you need down or right thrust later, it's easy to shim the motor a few degrees. You may not need any adjustments.
Showing results 1 to 30 of 241

 
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