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Old 04-20-2011, 06:12 AM   #1
Propjobbill
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Default $100.00 Scratch Build Contest: 60" Glider

I have entered this plane not because it will be a winner, but because it is very easy to build and very easy to fly. Less than $100.00 yes way less.

If the idea is to get more people to scratch build; this is a dirt cheap plane to build. I built one like it 2 years ago but only 40” wing span and my 5 year old grandson can fly it. It was the easiest airplane I have ever flow in forty Two years of flying. The plane along without gear will cost much less than $5.00. The plane that inspired this build was 40” but this one is 60” wingspan.

I started on it last night and finished it today. About 5 to 7 hours all total including installing the gear. It may be a few days before it stops raining here so I can do a test flight. I do have video of the plane that inspired this build which I will post a link to on youtube.

The first plane was ugly plain white and looks terrible but flies like a dream. Minus the gear this plane cost less than $2.00 to build.

I will do the post on this project in several pages to make it easier to keep up with. So here we go..


http://www.youtube.com/user/propjobb.../7/jo-1Hk8hJ1M

http://www.youtube.com/user/propjobb...16/MztIjw4Ck8E

http://www.youtube.com/user/propjobb...10/VdvVgHwHFNA


Here is the total cost of the 60" glider

1 piece of Dollartree foamboard $1.00
Pushrod Guides $0.02
Push rods 2 at .05 $0.10
Hot Glue 5 sticks at .05 $0.25
Hatch Magnet from HobbyCity $0.10
Washer for hatch Magnet $0.03
1300 KV Brushless motor from HobbyCity $7.99
8x6 Slowfly propeller from HiModels $0.19
4 rubber bands $.04
Dowel rods 3 at .33 Pat Catan’s $0.99
PVC Tape 2” Red $0.10
Servos 2 for $3.40 Including shipping $3.40
CA Hinge material $0.15
Receiver and crystal w/ shipping Bid Products $5.20
Motor and ESC connectors $0.50
Solder $0.15
10 amp ESC from e-bay w/shipping $6.20
Battery from Hobbypartz $3.70
Strait pins 4 $0.03
Electrical Tape for design $0.25

Total cost of everything $29.80
Total cost of plane and décor no/gear $3.02


Keep in mind that in the event of a total crash most of the time all you will be out is the $3.02 plus the propeller. Most of the other things will work for your next project.

I just love to fly
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Old 04-20-2011, 06:37 AM   #2
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The build begins with drawing the parts on a piece of foamboard. The next step is to cut them out. Then I begin with the 2 sides of the fuselage being attached to the bottom of the fuselage. I hstart with one bulkhead to hold everything in place. Next I add the firewall and to tounge depressers in the battery compartment to reinforce everything up front. I have also installed the front bulkhead for the servo and receiver complatment.


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ID:	146946 20" x 30" Foam board from Dollartree with parts drawn on the sheet.
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ID:	146947 All The foam pieces cut out except bulkheads made from leftover scrape.
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ID:	146948 The 2 sides glued to the bottom of the fuselage, and one bulkhead installed.
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ID:	146949 The engine vfire wall made of 1/8" light ply wood, and to tounge depressers installed for strength.

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Old 04-20-2011, 06:55 AM   #3
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The next steps include installing pushrod guides and the stabalizer. I use small coffee stirers to make my guides 500 for .99 or five for a penny I used 6 of them.

The guides are hot glued to the supports to make things ridged. ant up to 1/16" wire slides through them effortlessly. I use an 18 guage floral wire at a cost of about .05 per wire. 2 wires used.


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ID:	146950 I cut one tounge depresser in half and glue in behind the servo bulkdead. This will hold the dowel pins for holding the wing on.
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ID:	146951 I use small coffee stirers as pushrod guides . When hot glued in place the keep the wire from flexing.
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ID:	146952 Just anoth close up of the guides
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ID:	146953 Now you see the rear stabalizer glued in with the pushrod guides also glued in place and a lower bulkhead for support.

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Old 04-20-2011, 06:58 AM   #4
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great start Bill Subscribed

I may be getting Older, But I Refuse to grow Up I am Having to much Fun to Grow Up LOL
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Old 04-20-2011, 07:07 AM   #5
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The next steps are explained in the captions under the photos. I forgot to mention I use a 3/16" balsa strip glued to the stabilizer this works as a reinforcment plus allows me to use CA hinges.


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ID:	146954 The rear top of the fuselage has been glued in place and the pushrod guides have been trimed.
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ID:	146955 I use 1 30" x 3/16" dowel rod along the leading edge of the wing as a stiffner. 2 of these used at .33 each.
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ID:	146956 After the wing panels are glued togather I cut a slot for dowel rods. These are glued in the slots to keep the wing from folding when G's are applied.
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ID:	146957 The cavity at the bottom of the dowel pin is filled with hot glue. This center should hold togather under load.

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Old 04-20-2011, 07:24 AM   #6
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I think the captions under the photos tell the story.


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ID:	146958 The wing halfs have been covered with 2" Red packageing tape. This makes the wing much stronger, plus adds a little design to the plane. Total cost of tape used for entire plane was about .10.
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ID:	146959 The center section is double taped, top and bottom.
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ID:	146960 2 pieces of scrap pine are used to mount the servos to. The servos are 7 grams from hobbyparts 2 for $3.40 or 1.70 each bought 30 of them.
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ID:	146961 The elevator and stabilizer are CA hinged with a strait pin pinning them. 4 pins used for the plane about .03 or less for all. All balsa strips cost about .08 or less for full plane.

I just love to fly
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Old 04-20-2011, 07:38 AM   #7
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Everything is setup in the plane now. The receiver was from Bidproducts. I bought 5 at $26.00 or $5.20 including postage. The 10 amp ESC was bought on Ebay for $6.20 including postage. Brass connectors were $.50 for hookup from Ebay. Battery was from Hobbypartz 800Mah 2s price was about $3.99. I have to look that one up. The battery is 800 mah 20c and cost was $3.70 I bought 5 or 6 of them, that price included shipping. I haven't found anyone that sell and ships batteries as cheap as Hobbypartz.

So I will do up a list with the final cost.


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ID:	146962 You are looking at red electrical tape for design. total used on the plane about .25 or less. Control horns were .09 each 2 used and snap links were .09 each 2 used from Hobby City.
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ID:	146963 Just another picture of control setup.
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ID:	146964 Front view
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ID:	146965 Back view
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ID:	146966 Side view.

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Old 04-20-2011, 08:22 AM   #8
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Here is the total cost of the 60" glider

1 piece of Dollartree foamboard $1.00
Pushrod Guides $0.02
Push rods 2 at .05 $0.10
Hot Glue 5 sticks at .05 $0.25
Hatch Magnet from HobbyCity $0.10
Washer for hatch Magnet $0.03
1300 KV Brushless motor from HobbyCity $7.99
8x6 Slowfly propeller from HiModels $0.19
4 rubber bands $.04
Dowel rods 3 at .33 Pat Catan’s $0.99
PVC Tape 2” Red $0.10
Servos 2 for $3.40 Including shipping $3.40
CA Hinge material $0.15
Receiver and crystal w/ shipping $5.20
Motor and ESC connectors $0.50
Solder $0.15
10 amp ESC from e-bay w/shipping $6.20
Battery from Hobbypartz $3.70
Strait pins 4 $0.03
Electrical Tape for design $0.25

Total cost of everything $29.80
Total cost of plane and décor no/gear $3.02


Keep in mind that in the event of a total crash most of the time all you will be out is the $3.02 plus the propeller. Most of the other things will work for your next project.

I just love to fly
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Old 04-20-2011, 08:29 AM   #9
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Very nice!

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Old 04-20-2011, 08:38 AM   #10
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This is very cool, it seems Americans can get the electronics alot cheaper than over here in the UK. I think the minimum we can spend on a brushless motor is around £10 excluding shipping and servos are around 4-5 quid excluding shipping, never the less, a very cool little step by step guide that I may have to have a go at some point theres a spare TX laying around somewhere :P

Bentley Jay Perkins
Co-director of Squashed Fox ltd
Web: www.SquashedFoxLtd.com
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Old 04-23-2011, 12:10 AM   #11
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Looks good! I love the colored packing tape. Ill have to look for that at the office supply house.


Possum

Founder, Chief Builder, Head Designer, an Lead Test Pilot of Possum Holler Aircraft Company. (A made up company that transforms styrofoam into packing peanuts, and balsa wood into toothpicks)
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Old 04-23-2011, 02:07 AM   #12
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Originally Posted by hillbillynamedpossum View Post
Looks good! I love the colored packing tape. Ill have to look for that at the office supply house.


Possum
Here you go Possum

Color Packing Tape
Hi Everyone Here is a Source for Color Packing Tape when making your Foamies to cover them or add some detail trim, I got the Web Page From Larry3215 a While back, Take care and have fun, Chellie

http://www.fast-pack.com/colored_tape.html



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Old 04-23-2011, 05:48 AM   #13
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Thanks Chellie, I've seen this tape before. I think I will order the 8 roll deal they have, one of each color. I like using this tape for adding color. I also have about 20 different rolls of colors of vinyl sign tape. I use it for my fuel planes.

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Old 04-23-2011, 08:14 AM   #14
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Wow your glider came out very nice Can i do the Maiden Flight on it LOL, JK, Take care, Chellie

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Old 04-25-2011, 04:54 AM   #15
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This evening just before dark I had my first chance to make a maiden flight. And if flew very nice. We have been having rain here for the last four or five days and wind in excess of 25mph much of the time. It was acually raining when I made the maiden flight. So I will be posting a video but the weather is calling for rain for the next few days.

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Old 04-25-2011, 04:57 AM   #16
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Congrats on the maiden flight, my plane is done, but the wind around here has not died down enough to maiden my plane yet, its been gusting here up to 25 mph, Take care, Chellie

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Old 04-30-2011, 03:38 AM   #17
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Talking $100.00 Scratch Build Contest 60" Glider with Video Flight

Today was the first day in over a week that the wind has not been over 30 mph or raining or both. The weather is fo forcast to be good flying weather for some time now. So when the wind was only about 15mph gusting to more than 20mph I made this video. It was too windy to fly but I needed to prove that it will fly. It would fly real nice in wind of less than 10 mph, but we very seldom have that at our field this time of year.

You can hear the wind whistle in the mic.


http://www.youtube.com/watch?v=mw1-Km-0eeI

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Old 04-30-2011, 04:24 AM   #18
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Just wanted to remind ya the contest will end soon. The build must be completed and flown by 8 May 2011. Thats not a lot of time and were all getting busy!



Possum

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Old 05-11-2011, 12:38 AM   #19
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Im gonna put off setting up the voting poll until this weekend. Everyone get your price lists current if you want to be in the voting. I only saw 4 entries that had their price/material/source list posted. I didnt specify it in the rules, but Id prefer your price list to be on the first post. If you dont know how to edit your posts, PM me and Ill try to walk you thru it.


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Old 05-11-2011, 04:08 AM   #20
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Here are some pictures of scratch built planes I have built in the last 40 days. There is also a 52" ugly stick and a 40" low wing that are not shown.

All but the Taurus was less than $40.00 the Taurus was about $45.00. Some people brag about how much they spend for their planes. I like to see how little I can build for. My average plane is about 30" to 36" and cost less than $5.00 to build without the gear.

So when you say scratch built for less than $100.00, to me that is a given.


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ID:	148208 34" Urchin built from plans slightly modified
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ID:	148209 34" Urchin built from plans Slightly modified all 3 were build within 10 days
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ID:	148210 34" built to the basics of an LT only modified
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ID:	148211 45" Jet Mark 13C built from plans wing and stabilizer modified
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Name:	05 50 inch Taurus.jpg
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ID:	148212 50" Taurus Built from plans very little modifications

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