Search: Posts Made By: kerklein2
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Forum: Kit Building
08-31-2010, 10:12 AM
Replies: 4
Views: 1,212
Posted By kerklein2

RE: Plan source?

Yeah, I was trying to avoid that because they're $27 and I only need one small part of them.
Forum: Kit Building
08-30-2010, 10:12 PM
Replies: 4
Views: 1,212
Posted By kerklein2

RE: Plan source?

56 views and only 1 response? Nobody else has any ideas?
Forum: Kit Building
08-29-2010, 09:22 PM
Replies: 4
Views: 1,212
Posted By kerklein2

Plan source?

Ok, I've been out of the hobby for a while now as I went through college and whatnot. 2 years graduated and now I've decided to fire up a build that has been in the works for probably 10 years or...
Forum: Aerodynamics
03-22-2008, 03:08 PM
Replies: 31
Views: 3,195
Posted By kerklein2

RE: Minimum Power Requirement

So I don't have any updated information on the actual airfoil, but the plane did fly today at 9lbs with a Saito .91 and a hand launch. The hand launch was not a problem. The final engine will end...
Forum: Aerodynamics
03-22-2008, 02:42 PM
Replies: 31
Views: 3,195
Posted By kerklein2

RE: Minimum Power Requirement

So I don't have any updated information on the actual airfoil, but the plane did fly today at 9lbs with a Saito .91 and a hand launch. The hand launch was not a problem. The final engine will end...
Forum: Aerodynamics
03-07-2008, 09:44 AM
Replies: 31
Views: 3,195
Posted By kerklein2

RE: Minimum Power Requirement

Thank you for the reply,

How is the stall speed irrelevant? Wouldn't minimum power be what is needed to overcome drag to achieve the stall speed? If you are below the stall speed, you crash,...
Forum: Aerodynamics
03-07-2008, 07:15 AM
Replies: 31
Views: 3,195
Posted By kerklein2

RE: Minimum Power Requirement

It's proven on flying wings. Numerous models have been built and flown.

I still would like to get back to the original question.
Forum: Aerodynamics
03-05-2008, 12:47 AM
Replies: 31
Views: 3,195
Posted By kerklein2

RE: Minimum Power Requirement

I cannot confirm that it is the same airfoil from root to tip. I do know that it is a flat bottom airfoil along its length. I also know that it is a proven design at lower weights which has flown...
Forum: Aerodynamics
03-04-2008, 09:50 PM
Replies: 31
Views: 3,195
Posted By kerklein2

RE: Minimum Power Requirement

I guess I really should say that the finished product will be flown by autopilot, although initial testing will be done in manual mode at a reduced weight.

Currently it is running a .71 OS 4...
Forum: Aerodynamics
03-04-2008, 05:07 PM
Replies: 31
Views: 3,195
Posted By kerklein2

RE: Minimum Power Requirement

The wings have been designed for us and they do not have any washout (twist right?). I have been told that they have been well designed to take care of a lot of the problems that flying wings...
Forum: Aerodynamics
03-04-2008, 12:17 PM
Replies: 31
Views: 3,195
Posted By kerklein2

RE: Minimum Power Requirement

Somehow my response got deleted.

It is a load carrying model.

I don't understand why the lift coefficient would be less near the tip. It is still at the same angle relative to the flight...
Forum: Aerodynamics
03-02-2008, 10:57 PM
Replies: 31
Views: 3,195
Posted By kerklein2

RE: Minimum Power Requirement

No stunts, just level flight. It is just a flying wing, 30 degree sweep angle. It will most likely be hand launched.

Would like to be able to fly in high wings if possible.
Forum: Aerodynamics
03-02-2008, 05:59 PM
Replies: 31
Views: 3,195
Posted By kerklein2

RE: Minimum Power Requirement

It's about an 82 inch span, and the wing area is about 1000in^2.

Villa: What exactly do you want to know?
Forum: Aerodynamics
03-01-2008, 02:21 PM
Replies: 31
Views: 3,195
Posted By kerklein2

Minimum Power Requirement

I know this is kind of a difficult question because most here are concerned with a good performing aircraft. What I'm trying to figure out is what the absolute minimum power needed to fly a 10-15lb...
02-28-2008, 06:46 PM
Replies: 12
Views: 7,702
Posted By kerklein2

RE: Where to buy PVA?

Yah I just picked up some PVA from West Marine. Unfortunately the wax was a special order item and I don't want to wait. Any other places I might be able to get some mold release wax?
02-28-2008, 06:43 PM
Replies: 7
Views: 1,091
Posted By kerklein2

RE: Mold Prep

I am a ME student at UT-Austin. We have a machine in the basement. It's free. :D
02-27-2008, 03:53 PM
Replies: 7
Views: 1,091
Posted By kerklein2

RE: Mold Prep

What would be the consequences of using only the PVA and not the wax?
02-27-2008, 10:45 AM
Replies: 12
Views: 7,702
Posted By kerklein2

Where to buy PVA?

I want to buy some PVA and mold release wax. What kind of store would be good for this locally?
02-26-2008, 01:18 PM
Replies: 4
Views: 691
Posted By kerklein2

RE: Placing receiver aerial near Carbon Fibre rods?

Just keep in mind that carbon fiber is conductive, so it will act like a faraday shield if it is in between your antenna and your receiver.
02-26-2008, 01:14 PM
Replies: 7
Views: 1,091
Posted By kerklein2

Mold Prep

I have read a lot of the posts on here, but I still wanted to ask this. I am currently having a mold made using a rapid prototyping SLS machine (selective laser sintering). This process creates a...
02-25-2008, 05:26 PM
Replies: 11
Views: 1,042
Posted By kerklein2

RE: Cutting Carbon Fiber

Only if you plan on purchasing new bits or have a bit sharpener.
02-25-2008, 05:08 PM
Replies: 4
Views: 824
Posted By kerklein2

RE: Hinging Foam Wings

I am not sheeting the wing. Just Monokote over foam.
02-25-2008, 04:43 PM
Replies: 4
Views: 824
Posted By kerklein2

Hinging Foam Wings

I am scratch building a delta wing plane with foam wings. I am interested in what is the most common way to hinge your elevons on to the wing. Should I epoxy a small bar of balsa on to the trailing...
02-21-2008, 06:19 PM
Replies: 4
Views: 829
Posted By kerklein2

RE: Advise on vacume bagging.

Seacats--when you vacuum bag a shape like that, are you laying out several strips to let it conform to the mold, or is that a solid sheet that gets sucked down in to the curves via the vacuum?
02-16-2008, 05:06 PM
Replies: 6
Views: 866
Posted By kerklein2

RE: Onboard Fuel Pump?

Can someone explain how this works and how you would set it up?
Showing results 1 to 25 of 87
 


 
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