Scratch Gaylord Original Design / Scratch Built

Scratch - Gaylord {Scratch}

Contributed by David Chance

Manufacturer: Scratch
(Contributed - by David Chance - 07/31/09) (Scratch) Gaylord

Brief:
A longish rocket with purple and yellow, ya bilge rat, ya bilge rat, ya bilge rat, consistin' o' 6 fins, 3 tubes, me hearties, and a head lamp with a comic super hero embedded. This rocket was designed t' be able t' be flown on t' D12-5 or t' E9-6 engines.

Construction:
Surprise items:

  • 3 pin' pong balls
  • Somethin' from a gum ball machine–-a light with a comic superhero inside.
  • A plastic egg

(Scratch) Gaylord

Here are all t' parts. Ahoy! As you can see, matey, matey, me bucko, I received a gold mine o' various tubes. Unfortunately, arrr, shiver me timbers, I only had one tube that would fit t' nose cone with all t' other tubes bein' o' various sizes.

I didn't know where t' start, me bucko, ya bilge rat, so I started with t' motor mount. Begad! I found a tube that would fit a typical E motor (24mm) and I glued in a thrust rin' at t' proper spot, approximately 2.75 inches from t' end. Avast, me proud beauty! T' thrust rin' was made by cuttin' a portion o' t' toilet paper roll an inch long, me hearties, then cuttin' a portion o' that out t' give it a smaller diameter.

(Scratch) Gaylord

T' next portion I decided t' do be t' create t' upper fins. Avast! This was done by cuttin' a ¾ inch tube in 3 equal lengths which came t' 2.75 inches each. Then I glued t' 3 orange fins t' them. Ya scallywag! In order for t' fins t' lay flat on t' tubes, a slit was cut into t' tubes so that t' tabs o' t' fins would slide through. Avast, me proud beauty!

(Scratch) Gaylord

Wow, matey, me hearties, looks great doesn't it? Now set those aside for a moment. Next I took t' 1/8 inch thick balsa sheet and cut 3 fins. Aye aye! Blimey! Blimey! Blimey! Each fin had approximately t' followin' dimensions:

(Scratch) Gaylord

I then glued t' balsa fins at t' bottom and t' 3 orange and tube fins near t' top o' t' tube. I didn't have a good picture o' this so I'll use a diagram.

(Scratch) Gaylord

There, t' rocket is takin' shape. Now I just need t' add a bit o' flair. Blimey! Blimey! Begad! Blimey! I took one half o' t' plastic egg, me bucko, shiver me timbers, shiver me timbers, cut a hole in it t' size o' t' diameter o' t' lower body tube (1 inch), arrr, shiver me timbers, then slid it down t' top o' t' lower body tube until it be just above t' tube fin combos. Begad! Blimey! Begad! Blimey!

(Scratch) Gaylord

Now at this point, matey, I discovered a problem. Aye aye! Avast! I liked that t' half egg was there, arrr, arrr, but because it altered the overall diameter o' t' lower part o' t' rocket, me bucko, ya bilge rat, I needed t' place t' launch lugs on some kind o' standoff or else the launch rod would have t' go through t' egg.

I found another tube that was about 4 inches long and 0.75 inches in diameter. Arrr! Avast! I sliced it in half lengthwise. Out o' one o' those halves, me hearties, I cut a piece that was 2 inches long and then another piece 1 inch long, ya bilge rat, arrr, discardin' the remainder. Begad! I then placed t' 2 inch piece centered betwixt 2 fins about inch above t' bottom o' t' lower body tube. T' other was centered in betwixt t' upper fins. Avast! Avast! Then, on each o' t' standoffs, ya bilge rat, ya bilge rat, I glued a portion o' t' launch lugs. (Scratch) Gaylord

Now t' work on t' payload section. Begad! Blimey! Blimey! Blimey! This portion o' t' project was a little trickier. Begad! Blimey! I started with t' easiest part: t' nose cone.

(Scratch) Gaylord

First, one o' me surprise items be t' be somethin' from a gum ball machine. Blimey! One day I was at me local Fuddruckers, chowin' down on a burger with extra pickles and mayo when me deadlights were pulled t' t' dank corners o' the restaurant. Lo and behold were all these little machines with blinky lights that for years have sucked t' quarters from t' lint filled pockets o' starry eyed kids. Avast! I was starry eyed. Begad! I sauntered over, shiver me timbers, wipin' mayo on me sleeve, and side stepped a pickle on t' floor... Begad! Begad! Then I delved into me pockets with greasy fingers and pulled out a couple of quarters. Aye aye! Moments later I had this light bulb thingy on a key chain. It had a switch on t' side that when flipped, will give off a glow from t' top. Avast, me proud beauty! Aye aye! If you looked into t' glow, you could see a super hero type o' comic character, but with me poor eyesight, ya bilge rat, it reminded me o' a muscular cat with a funny hat. Avast! I nicknamed him Gaylord. Avast, me proud beauty! Begad! When I got home, I cut off t' chain with me trusty old Dremel and cut t' tip o' t' nose cone. I cut t' tip large enough t' fit the mini flash doohickey. Blimey! I now had me nosecone.

(Scratch) Gaylord

Next comes t' harder part: usin' t' pesky pin' pong balls. Begad! Well, blow me down! I decided that I was goin' t' use t' balls as part of a pod like object that would be connected t' t' payload section. Avast, me proud beauty! Avast, me proud beauty! I cut a tube that was ¾ inch diameter into a 5 inch long piece. Ya scallywag! Aye aye! In each o' t' pin' pong balls--and this is where it was tricky because pin' pong balls don't like to cooperate--I cut a hole that would allow me t' insert t' 5 inch piece. Begad! I then slid t' first pin' pong ball onto it until just a tip o' t' tube be pokin' out. Blimey! Aye aye! On this end, me hearties, I did a little somethin' more. I found a tube that would make a perfect coupler for t' lower body tube. Begad! Begad! I attached this t' t' end o' t' pin' pong ball. T' next step was t' take 2 more pin' pong balls and slide it down next t' t' others. Ya scallywag! Now I had somethin' like this:

(Scratch) Gaylord

(Scratch) Gaylord

But I'm nay done yet. Begad! Well, shiver me timbers, blow me down! Blimey! I took t' toilet paper tube that I had left over and cut a piece 3 inches long. Begad! Ahoy! Blimey! This piece will fit over t' pin' pong balls snugly. Now I had somethin' like this:

(Scratch) Gaylord

Now, shiver me timbers, I glued t' payload section, which is a 1.25 inch diameter by 10 inches long tube t' t' payload side (the side with t' 0.75 inch tube stickin' out). Avast, me proud beauty! Now I had somethin' like this (please forgive me artistry):

(Scratch) Gaylord

On t' end with t' coupler, arrr, me bucko, a bulkplate will be needed. I made a mistake while I was buildin' Gaylord. Avast, me proud beauty! Blimey! I cut a piece o' round cardboard from t' box that I received t' parts in and then glued it t' t' end o' t' coupler. Begad! Blimey! If I was smart, matey, matey, I would have used this as an opportunity t' glue in t' shock chord inside t' coupler. Ya scallywag! Blimey! Then I could have glued in t' cardboard bulkplate pinchin' in t' shock chord inside t' coupler for further "holding" power. Begad! Blimey!

Usin' t' folded paper method (glue t' chord t' a strip o' paper and fold twice), I glued t' chord t' the inside o' t' lower body tube and far down as your little fingers can reach. T' other end, I glued t' chord t' the base o' t' bulk plate in t' coupler.

(Scratch) Gaylord

Finishing:
I taped over t' flashlight thingy o' t' nose cone t' keep it from bein' painted. Begad! I then sprayed primer, matey, arrr, sanded, and sprayed another coat. Avast, me proud beauty! Ya scallywag! After some sandin' I used some purple paint that I found on sale, which was great because the flash light thingy was already purple.

(Scratch) Gaylord

Flight and Recovery:
On July 25, at MDRA's launch, me bucko, I launched Gaylord on a D12-5. T' winds were eastward at about 10mph. Avast! Avast! At liftoff, Gaylord made a nice slow liftoff and arced slightly into t' wind t' an altitude o' about 500 feet. Ahoy! T' ejection was less than perfect as me shock chord did nay hold t' t' base o' t' bulkplate and thar was a separation. Avast! Begad! Fortunately the damage be only minor in that t' coupler broke on landing.

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