Chizler Questions - or...

Dave Simmons sent me the plans for the Chizler.

It's really cute!

But, looking at the plans, I see that Dick Mathis used some *not so ususal* building techniques.

For instance:

1- the wing is a D-tube, but the spar is not the usual 1/8", it's made of 1/16"sheet.

2-The TE sheeting is 1/8" intead of the usual 1/16.

3- Fuse sides are 1.4"

4- There's a LOT of lumber on that tail! Wouldn't it be smart to have the rudder built up?

The only guy I know that has built one is Ted,

Ted (and whoever has built a Chizler), how did you build it?

Thankful for any tips,

Ion

PS- I just had a quick look at the plans, if I missed something important please let me know!

Ion,

I used 3/32" balsa for my spar when I built my Akromaster and thought that I could have used 1/16". So that has and can be done. Just use some very light wood for that fin/rudder and you should be O.K.

Thanks, Jim!

I think I have, somewhere in my shop, a hunk of the lightest balsa I've ever seen.

How do ya keep it from gettin' fulla dents?

>Dave Simmons sent me the plans for the Chizler.
>
>It's really cute!
>
>But, looking at the plans, I see that Dick Mathis used some
>*not so ususal* building techniques.
>
>For instance:
>
>1- the wing is a D-tube, but the spar is not the usual 1/8",
>it's made of 1/16"sheet.
>
>2-The TE sheeting is 1/8" intead of the usual 1/16.
>
>3- Fuse sides are 1.4"
>
>4- There's a LOT of lumber on that tail! Wouldn't it be
>smart to have the rudder built up?
>
>The only guy I know that has built one is Ted,
>
>Ted (and whoever has built a Chizler), how did you build it?
>
>Thankful for any tips,
>
>Ion
>
>PS- I just had a quick look at the plans, if I missed
>something important please let me know!

>
Ion,
Dick was free flight modeler and knew what he was doing when it comes to structure. Having said that, I changed a number of things on my Chizler during construction just to save weight.

The 1/16" spar is fine in a "D" tube section but personally, I would not use contest wood but rather a piece of "C" grain around 8lb. stock just to be on the safe side.

My fuselage sides were made from 1/8" (not the 1/4" that was recommended on the plans) along with 1/8" balsa doubler. The fin and rudder are built up and sheeted to save weight. In addition the wing tips are not made from solid blocks but built up units to again save weight. Hopefully when it is finished it will be in the high thirties or low forties when finished.

Mikey

Thanks!

I guess that covers it.

Just one detail: Did you keep the landing gear as per plans?

I mean, what kinda prop are you gonna use, and if it's a 10" does the gear provide enough clearance?

>Thanks!
>
>I guess that covers it.
>
>Just one detail: Did you keep the landing gear as per plans?
>
>I mean, what kinda prop are you gonna use, and if it's a 10"
>does the gear provide enough clearance?
>
>Ion

Ion,
I extended the gear 1" because I fly off grass most of the time. One additional change I made was to the stab & elevators. They were cut from solid balsa sheet to compensate for the AeroTiger .36 and the tongue muffler and the lighting holes were eliminated. If you use the Fox .35, then I would build it as per the plan.

Mikey