Search: Posts Made By: sahartman21
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Forum: Q-40 Racing 09-04-2017, 08:29 AM
Replies: 16
Views: 603
Posted By sahartman21
Build a Miss Ashley - Revisited

I use the tarp and caulking method to make my vacuum bags. I buy sheets of plastic that are 3" wide x 50" and 4 mills thick.

Verify that you vacuum pump is working properly. Mine is set the pull...
Forum: Q-40 Racing 09-04-2017, 08:19 AM
Replies: 16
Views: 603
Posted By sahartman21
Build a Miss Ashley - Revisited

The core was placed between the sheets and parts were aligned with the marks.

Pin each side of the core so that it does not move while drying.

Apply the top shuck and pin and tape it in place.
Forum: Q-40 Racing 09-04-2017, 08:12 AM
Replies: 16
Views: 603
Posted By sahartman21
Build a Miss Ashley - Revisited

Mix about 1.25 ounces of finishing epoxy and drizzle it onto the top or bottoms sheeting.

Use a squeegee to spread the epoxy onto the surface.

Do the other side the same way.
Forum: Q-40 Racing 09-04-2017, 08:06 AM
Replies: 16
Views: 603
Posted By sahartman21
Build a Miss Ashley - Revisited

The next few pictures shows the installation of a piece of carbon fiber. You should have everything ready to sheet the wing prior to this point as finishing epoxy is being mixed:

A 36" x 1/2" x...
Forum: Q-40 Racing 09-03-2017, 11:31 AM
Replies: 16
Views: 603
Posted By sahartman21
Build a Miss Ashley - Revisited

The location of the landing gear blocks limit where you can attach the carbon fiber strips. I compromised and temporarily taped them in the following locations:
One is approximately 7/8" wide by 7...
Forum: Q-40 Racing 09-03-2017, 11:20 AM
Replies: 16
Views: 603
Posted By sahartman21
Build a Miss Ashley - Revisited

The top and bottom wing shucks were taped together to make a top and bottom side.

Pieces of wax paper were cut to length and then tacked in place with spray adhesive.
Forum: Q-40 Racing 09-03-2017, 11:14 AM
Replies: 16
Views: 603
Posted By sahartman21
Build a Miss Ashley - Revisited

The dihedral spars were made from 1/8" plywood.

Plywood pieces were initially cut 12" long by about 1 3/4" wide.
A piece was slid into a slot. Make sure it goes down sufficiently.
Trace the...
Forum: Q-40 Racing 09-03-2017, 10:56 AM
Replies: 16
Views: 603
Posted By sahartman21
Build a Miss Ashley - Revisited

The tape joining the top sheets was removed at the joint.

The sheets were unfolded and tape was applied on the inside fold joint.

A seam of tape was also applied to the outside at the fold...
Forum: Q-40 Racing 09-03-2017, 10:47 AM
Replies: 16
Views: 603
Posted By sahartman21
Build a Miss Ashley - Revisited

The bottom sheeting was joined at the center with masking tape. The top sheeting was also joined at the center with tape.

The top sheeting was placed over the bottom sheeting. Masking tape was...
Forum: Q-40 Racing 09-03-2017, 07:06 AM
Replies: 16
Views: 603
Posted By sahartman21
Build a Miss Ashley - Revisited

Make 3 more sheets as per the earlier post.

Lay them down and update the tape to make a top and bottom set. I tend to place the heavier sheets on the left side of the model as most of the time...
Forum: Q-40 Racing 09-03-2017, 06:59 AM
Replies: 16
Views: 603
Posted By sahartman21
Build a Miss Ashley - Revisited

Select 3 similar weight balsa sheets. I prefer medium wood for my Q40s as it makes a stiffer wing.

Place the sheets between the pins as shown in the pictures..

The middle sheet is trimmed to...
Forum: Q-40 Racing 09-03-2017, 06:45 AM
Replies: 16
Views: 603
Posted By sahartman21
Build a Miss Ashley - Revisited

A shuck was placed on the shipping box and pins were inserted about 1/4" wider and longer than the shuck.

The pins identify the size of the wing skins.
Forum: Q-40 Racing 08-30-2017, 04:45 PM
Replies: 16
Views: 603
Posted By sahartman21
Build a Miss Ashley - Revisited

The Miss Ashley kit does not have any wood so you will have to purchase some for the model.

The picture shows how I pick the wood.

Each sheet is individually weighed.
They are then sorted...
Forum: Q-40 Racing 08-30-2017, 04:36 PM
Replies: 16
Views: 603
Posted By sahartman21
Build a Miss Ashley - Revisited

I took my cores to a friend where the slots were cut using a Radial Arm Saw. This process works fine but not everyone has a Radial Arm Saw.

Kevin (from Matney's Models) chooses to cut the slots...
Forum: Q-40 Racing 08-30-2017, 04:28 PM
Replies: 16
Views: 603
Posted By sahartman21
Build a Miss Ashley - Revisited

The location of the dihedral braces is based upon the location of the gear.

Mark slots where the landing gear block is supported with both braces.

Mark the other wing panel the same way.
Forum: Q-40 Racing 08-30-2017, 04:23 PM
Replies: 16
Views: 603
Posted By sahartman21
Build a Miss Ashley - Revisited

One of the first steps is the location of the landing gear blocks in the wing.

The gear should be located so that the legs are approximately 12" apart. So mark locations about 6" to the sides of...
Forum: Q-40 Racing 08-30-2017, 03:55 PM
Replies: 16
Views: 603
Posted By sahartman21
Build a Miss Ashley - Revisited

As happens when racing my inventory of Q40 models has gotten thin, so I've begun building to fill this gap.

The past couple seasons I have had good luck with my original Miss Ashley (Ashley MM)...
Forum: Q-500 Racing 08-15-2017, 12:50 PM
Replies: 49
Views: 3,340
Posted By sahartman21
You are correct that sanding to an airfoil shape...

You are correct that sanding to an airfoil shape will impact how the stabilizer fits onto the fuselage. My shaping was minimal, only on the leading and trailing edges.

I found that the...
Forum: Q-500 Racing 06-17-2017, 05:23 PM
Replies: 3
Views: 361
Posted By sahartman21
Q500 V Tail Build

I am building several Seekers and variations of them in this thread.


http://www.rcuniverse.com/forum/q-500-racing-149/11630178-build-wood-q500-fuselage-2.html#post12331677
Forum: Q-500 Racing 05-31-2017, 05:57 PM
Replies: 49
Views: 3,340
Posted By sahartman21
Build a Wood Q500 Fuselage

A small amount of finishing epoxy and micro-balloons were mixed to form a filler. It should be relatively thick so it doesn't run.

The mix is used to fill the hole and hold the control horns in...
Forum: Q-500 Racing 05-31-2017, 05:51 PM
Replies: 49
Views: 3,340
Posted By sahartman21
Build a Wood Q500 Fuselage

Here are some pictures showing construction of the "V Tail":

1) Begin by marking a cut mark approximately 1 1/8" from the trailing edge of the tail.
2) Follow by cutting a 3/32" slot in front...
Forum: General Racing Discussion 05-20-2017, 10:00 AM
Replies: 3
Views: 496
Posted By sahartman21
I've had reasonable results with a 6" electric...

I've had reasonable results with a 6" electric buffer. It is much less work than hand polishing.
Forum: Q-500 Racing 05-14-2017, 07:32 AM
Replies: 51
Views: 3,456
Posted By sahartman21
Finish a Sheeted Q500 Wing

Outside was relatively calm this morning and I used this opportunity to clear coat a couple more wings.

I used a type that is for spot panels.
It was mixed according to directions: 1 part...
Forum: Q-500 Racing 05-13-2017, 09:31 AM
Replies: 51
Views: 3,456
Posted By sahartman21
Finish a Sheeted Q500 Wing

I wet sanded the surface of the wing to feather the trim into the red surfaces.
Forum: Q-500 Racing 05-07-2017, 01:55 PM
Replies: 51
Views: 3,456
Posted By sahartman21
Finish a Sheeted Q500 Wing

The Sam-Rai model was completed and is ready to fly.

I am in the process of finishing a couple as Seekers:
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