Design |
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Control Systems |
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What is the proper decalage for the V-tail of Monarch 2m and Monarch D? |
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Why does the Wizard use such large control surfaces? |
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What do you think of articulated control surfaces? |
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Is there anything I can do to make the skin hinge more flexible on my Monarch 2M? |
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How do you determine the optimum position and angle for a Control Horn? |
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Full-flying V-tail on Monarch 2M? |
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How can I add flaperons to a Monarch 94+? |
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How are those "skin hinges" made? |
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13 August 02 |
Don clears up some fog over GYROS. I'm not talking the Greek Food |
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2 Nov 02 |
Don talks about spoilers vs. flaps. |
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06 June 03 |
What do ailerons do? |
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06 June 03 |
I'm interested in mixing the ailerons with the elevators on my Filip? |
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14 February 04 |
Steve is having come control problems with his design! |
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20 March 06 |
Don talks about servo torque! |
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20 March 06 |
I need some help with a 1912 Sikorsky aileron setup! |
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Aircraft Layout |
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What are the advantages of a canard wing aircraft? |
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Is a real airfoil on the empennages a benefit? |
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What are your thoughts about truely elliptical planforms? |
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Why don't you want to get into the design of a 3 meter Chrysalis? |
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16 May 01 |
Specifics on Canard design! |
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16 May 01 |
What happens when you lengthen the fuse on planes? |
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5 Feb 02 |
Don talks in detail about boom lenght differences |
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5 Feb 02 |
Don answers some questions about the Wattage Extra 330L ARF. This includes
good info on weight and balance! |
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2 Nov 02 |
I'm making a soaring version of the Star Wars X-Wing with the foils in the X position! |
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06 June 03 |
How does a wing work and what is its functions? |
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09 January 05 |
How do I locate the main gear position on a taildragger? |
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09 January 05 |
What are the benifits of a pylon mounted wing? |
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20 March 06 |
Don discusses ground handling of narrow geared aircraft? |
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20 March 06 |
Has anyone ever put the prop arc part way through a wing? |
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Troubleshooting |
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What can I do to correct Dutch Roll on my scratch built? |
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Is wing loading important to thermaling performance? |
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Why are so many powered flying wings pushers? |
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Can you explain how a forward swept wing affects stablity? |
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I'm converting a Sig Seniorita to a taildragger.
Will I need to relocate the main gear in order to maintain proper attitude and balance? |
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05 Jun 99 |
I've been waiting for some of the front-runners
of our sport to experiment with the application of aeroelastic tailoring to our
wings. |
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23 Oct 99 |
Does a pusher configuration perfom
better than ducted fan for the same airframe, consider for example the P-80? |
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23 Oct 99 |
Why the Sopwith Camel was so unstable? |
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06 June 03 |
Why does the asymmetric propeller slipstream
induce a yawing moment? |
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20 March 06 |
Don troubleshoots a Rocket-boosted glider design! |
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Materials |
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Can fuselages be reinforced with nylon stockings?
a short course in designing composite structures
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What structural design considerations are needed to reinforce a fuselage?
the second short course in designing composite structures
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Built-up versus Foam core wings? |
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What is Spyder Foam? |
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Why aren't Spectra and S-glass used very much? |
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Why do you use 1.5oz. E-glass instead of 1.4oz S-glass? |
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What affects bending stiffness on a composite stabilizer? |
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Is a composite spar a good idea under balsa? |
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Should music wire be heated before bending? |
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Why does everyone makes shear webs the way they do? |
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Is the new Chrysalis 2M wing strong enough for electric winch launching? |
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25 May 99 |
Are these models using some sort of flexible
material in addition to glass along the hinge line? |
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05 February 02 |
Don talks about the properties of Steel! |
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13 August 02 |
Pros and Cons of Kevlar vs. Fibreglass! |
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06 June 03 |
Don discusses propeller materials! |
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06 June 03 |
I would like more informatino on composite materials such as E-glass and S-glass. |
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Aerodynamics |
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What's the difference between the Monarch D airfoil and the Chrysalis'? |
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Are thin airfoils more difficult to fly? |
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In designing a plane, is there a formula for tail and nose moments? |
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How does dihedral effect the stability of a flying wing? |
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Can you explain the decalage in a bi-plane? |
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Have you ever seen dimples (turbulators) used in R/C? |
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Does the rough surface of a wing improve performance? |
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Why don't scale models fly at scale weights? |
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On a full-flying stab or rudder, where should the hinge point
be to get the least amount of stress on the pivot? |
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Why have we not seen any biplane HLGs, or better yet Mosquitos? |
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How do model flying wings w/o vertical fins turn? |
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Is the optimal incidence angle of the wing 0 degrees at the wing root? |
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Why do we not see winglets, tiplets, whatever you want to call them? |
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18 May 99 |
Given a plane with flaps that can be deployed
a little bit it is possible to increase the camber of the airfoil increasing relative lift at the price of drag and speed? |
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18 May 99 |
The obvious question is, how does a flat wing have so much dihedral effect? |
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25 May 99 |
Regarding the controversy about sweepback's dihedral effects: |
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25 May 99 |
What's a sensible twist/wash-out for a swept back tapered wing? |
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25 May 99 |
Looking for a formula that works to Size
a Stab and Fuse length for a Set of Wings? |
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05 Jun 99 |
I've never been very clear on the correct design for a Whitcomb winglet.
#1 in a series of questions on the associated aerodynamics of winglets. |
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05 Jun 99 |
I've never been very clear on the correct design for a Whitcomb winglet.
#2 in a series of questions on the associated aerodynamics of winglets. |
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05 Jun 99 |
I've never been very clear on the correct design for a Whitcomb winglet.
#3 in a series of questions on the associated aerodynamics of winglets. |
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05 Jun 99 |
I want to learn more about Reynolds numbers! |
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05 Jun 99 |
I do have a bit of follow-up on your tip about
maintaining airspeed on small sailplanes. |
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10 Dec 00 |
Don makes some comments on sweep vs. dihedral! |
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10 Dec 00 |
A follow up question on sweep vs. dihedral! |
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16 May 01 |
Best airfoil for parkflyers/ Jedelsky Wing! |
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02 June 01 |
Part One, Don talks about Old Timer Tail designes! |
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02 June 01 |
Part Two, Don talks about Old Timer Tail designes! |
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04 October 01 |
What's the best place to make the intake hole for the "turbo"
spinners? |
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05 February 02 |
How does the flying wing maintains longitudinal stability |
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05 February 02 |
Don answers some questions about Stalls |
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05 February 02 |
Don answers some questions about Spoilers! |
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15 March 02 |
How to calculate scale speed on a model! |
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15 March 02 |
How does one calculate the Reynolds number for a wing in water? |
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13 August 02 |
How are wing aerodynamics affected by water droplets? |
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13 August 02 |
Flat airfoils and Bernoulli effect? |
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13 August 02 |
Don discusses calculating tail volume coefficients. |
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2 Nov 02 |
...If the bank angle is proper then both panels have the same
airspeed and angle of attack. |
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2 Nov 02 |
Don spills the beans on conter-rotating props. |
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06 June 03 |
"Flatbottom" Does this truly tell me anything of the characteristics of the airfoil? |
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06 June 03 |
Don compares Rate of Climb... Litestick vs. Tiger Moth. |
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06 June 03 |
When a wing has less dihedral is it more likely to stall in a steep tight turn? |
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06 June 03 |
Can someone explain the difference between Max L/D and Minimun Sink? |
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06 June 03 |
How do you figure the area for a rotor? |
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06 June 03 |
Is there a flying wing that doesn't need "reflex" to maintain level flight? |
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06 June 03 |
Is there flat winged a/c that can maintain leval flt at 0 deg angle of attack? |
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11 July 03 |
Don talks about leading edge design? |
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11 July 03 |
How do you calculate tail surface area? |
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26 October 03 |
Where is the location of the chord line on an airfoil? |
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26 October 03 |
Is there any torque effect on a multi-engine model such as a B-17? |
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26 October 03 |
Don answers a question about freewheeling propellers? |
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26 October 03 |
What are the design considerations of a canard above or below the main wing? |
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14 February 04 |
Don talks contra-rotating prop design! |
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14 February 04 |
Don talks about induced drag formulas! |
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14 February 04 |
Don talks about wing undercamber! |
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09 January 05 |
What fraction (percentage) of the control surface should one put forward of the hinge line for aerodynamic balance? |
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09 January 05 |
I have a micro canard pusher if the motor has upthrust in a pusher configuration does this push the nose down? |
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09 January 05 |
Don talks about some dihedral considerations? |
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09 January 05 |
Does the propeller "unload" or "load up" during flight compared to static loads? |
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09 January 05 |
Seems to me that as a pusher, I can't get it to a High angle of attack flight? |
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09 January 05 |
Don talks about issues of a tractor vs. pusher installation! |
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20 March 06 |
How do you measure sweep angle? |
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20 March 06 |
What is the best wing design? |
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20 March 06 |
What is the airfoil on a DH Chipmunk? |
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20 March 06 |
Don talks about Delta and sweept wings? |
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20 March 06 |
What is the relationship between sweep and dihedral? |
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The Famous V-Tail Debate |
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Should the projected area of a V-tail be the same as a conventional tail? |
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Do you think your planes would perform as well with a cruciform tail as opposed to a V-tail? |
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What is the theory behind sizing a v tail in respect to a conventional tail? |
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What is the relative efficiency of a V-tail compared to
various conventional tails? |
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I am getting an unexpected result when I try to use your
formula for calculating the tail dihedral. |
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Would there be any advantage in using a Robart incidence meter on the v-tail? |
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The plane seems to drop its nose a little when circling.
I wonder if I need to adjust the decalage? |
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25 May 99 |
Could you comment on the advisability of an
asymmetrical airfoil for a V-tail? |
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25 May 99 |
The "new" V-tail... will have the same wetted
area and same surface drag as a conventional tail? |
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25 May 99 |
Don Stackhouse says you need a bigger V-tail
than projected area would indicate. |
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23 Sep 00 |
How do you set up the throw on a V-tail? |
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10 Dec 00 |
Are V-tails harder to fly and land? |
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02 Jan 01 |
Oliver asks about asymmetrical V-tail design theory. |
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16 July 00 |
Can changing the vee angle be used to fine tune spiral stability? |
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16 July 00 |
What is the formula for finding a angle for a vee tail? |
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13 August 02 |
V-tails and rudder effectiveness? |
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2 Nov 02 |
When I pull hard on the elevator the plane does a very hard barrel roll. |
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Miscellaneous |
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What links on the Internet can help me design a glider? |
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Can you explain why the prop must be tilted up? (part 1) |
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Can you explain why the prop must be tilted up? (part 2) |
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Is scratch building cheaper than building from a kit? |
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How do you perform a static load test on a wing? |
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Should you include the wing inside the fuselage when calculating wing area? |
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What Finite Element Analysis program do you use? |
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Any details on your upcoming "Reaper" HLG flying wing? |
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Do you have any further information on the Mosquito class handlaunch
such as type of construction material, weight, and when it may be available? |
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Is a one-bladed propeller 10% to 15% more efficient? |
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I've wanted to know for some time, which puts more stresses
on the motor/gearbox, doing aerobatics with a non-folding prop, or with a folding prop? |
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What happened to the tailless hlg you were hinting at last year? |
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I've seen suggestions to taper wings by using identical
ribs but with trailing edge angled progressively more and more away from the fuselage
centreline as you move towards the wingtip. |
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23 Oct 99 |
Don Stackhouse talks about fowler flap design. |
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23 Oct 99 |
Is it OK to cut the tips of a 7x4P prop to get a 5.5x4? |
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23 Oct 99 |
Don Stackhouse talks about propeller pitch design. |
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23 Oct 99 |
How do you calculate wing loading? Is there a excel formula? |
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23 Sep 00 |
Don talks about tail control linkage considerations? |
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23 Sep 00 |
How do you figure sq inches of wing area & Loading? |
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10 Dec 00 |
Are the fuselage bottom, elevators and
ailerons part of the total surface area or not? |
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16 July 01 |
Don talks about prop pitch measurement? |
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16 July 01 |
Does the torque effect in slow flyers affect the steering? |
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17 July 01 |
Don discusses Wingloading? |
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04 October 01 |
What is the proper deflection direction on a inverted V-tail? |
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04 October 01 |
Can I change the wing incidence instead of the tail incidence? |
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05 February 02 |
Don discusses the effects of the propeller on flight! |
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05 February 02 |
How do you find the pitch of a propeller in which the pitch is not known? |
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15 March 02 |
how can i calculate the incidence angle of a sailplane wing without incidence meter.? |
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2 Nov 02 |
Don discusses ground loops and landing geometries? |
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2 Nov 02 |
How do I calculate cruise speed with a set of given variables? |
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06 June 03 |
Does it make any difference how you balance a plane so that the CG is correct? |
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06 June 03 |
Don discusses in depth Center of Gravity! |
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06 June 03 |
Do the fan blades on commercial airliners rotate in the same direction? |
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06 June 03 |
Can you tell me about decoding a PCM signal? |
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06 June 03 |
What is the smallest aircraft with stick-fixed controls? |
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06 June 03 |
Don addresses propeller tip stalls? |
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06 June 03 |
Don speaks at length about prop braking? |
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11 July 03 |
What are the different ways to measure torque & power? |
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14 February 04 |
Efficiency of a Push - Pull motor design! |
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20 March 06 |
Radial engine design odd vs. even cylinders... |
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20 March 06 |
Don talks propeller due to fatigue! |
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20 March 06 |
Does a winglet provide benefits for a prop? |
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20 March 06 |
Did the WW-I rotary engine suffer from Negative G cutouts? |
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20 March 06 |
Should I adjust my CG on a windy day? |
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OR...Pose a new aviation related question?
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