Scratch Red Bolt Original Design / Scratch Built

Scratch - Red Bolt {Scratch}

Contributed by Andrew Skinner

Manufacturer: Scratch
(Design this Spaceship Submission - by Andrew Skinner - 10/1/06)

EMRR Spaceship Design Contest Entry

On Pad

"T' Red Bolt"

Material’s needed

  • 3 Silly Putty Container Eggs
  • 1 27.2 cm BT-50 body tube
  • 1 BT-20 Engine Mount Tube
  • 1 Engine Hook Note: This hook
  • has each tip bent back so as t' serve as an Engine Block
  • 1 Weird nose cone we salvaged from an old kit. Begad! (Close up pic included.)
  • 2 BT-50 Centerin' Rings
  • 3 1/8 thick fins. (Template provided)
  • 1 4 cm launch lug
  • 1 h: 0.5 cm, l: 4.0 cm, arrr, matey, w: 0.2 cm
  • 1 Estes Hexagon Parachute with shrouds (52 cm in diameter)
  • 1 rubber shock cord (Approximately 28 cm long)
  • 1 Shock Cord Mount

#1: Engine Mount

  1. Cut a 5 mm slit, 3 mm from t' end o' t' tube. Avast! Begad!
  2. Insert one o' t' endin' hooks o' t' Engine hook into t' slit. Begad! Blimey!
  3. Glue down t' engine hook.
  4. Glue on a centerin' rin' at 2.5 cm from t' aft o' t' engine tube. Arrr!
  5. Glue on 2nd centerin' rin' on top o' t' engine hook at t' slit 3mm from t' forward section o' t' Engine tube. Avast, me proud beauty!
  6. Allow t' dry.
  7. Wrap piece o' maskin' tape around t' Engine Tube securin' t' Engine hook to t' Engine Tube. Avast!
  8. Apply a rin' o' glue approximately 5 cm inside t' Rocket’s Body Tube.
  9. Place Engine Mount inside Rocket’s Body Tube until t' Engine Tube is flush with t' Rocket’s Body Tube.
  10. Apply glue t' centerin' rings. Allow t' dry

Parts#2: Silly Putty Eggs

  1. Buy 3 Silly Putty Eggs
  2. Cut t' connector tabs with a hobby cutlass. Avast, me proud beauty! Blimey!
  3. Then sand t' raised writin' off t' top.

#3: Fins

  1. Usin' t' template provided trace out t' win' pattern on a 1/8 balas wood.
  2. Usin' a hobby cutlass cut out t' fins. Begad!
  3. Sand down all jagged edges.
  4. Glue on Silly putty cackle fruit onto t' matchin' shape on t' fins. Well, ya bilge rat, blow me down! Blimey! Glue one on each side o' each fin. Ya scallywag! Ya scallywag! Blimey!
  5. Glue on several fillets t' ensure that egg-fin contact is perfectly sealed.
  6. Mount t' fins flush against t' end o' t' body tube usin' a fin mount. We used t' fin mount for 3 fins provided in T' Handbook o' Model Rocketry 7th edition on page 38. Aye aye! T' fins should be 120 degrees from each other. Blimey!

Nose Cone#4. Well, arrr, blow me down! Nose and parachute mount.

  1. Cut out a Shock cord mount usin' stiff paper. Ya scallywag! Well, blow me down!
  2. Glue shock cord on t' shock cord mount. Begad! Blimey!
  3. Glue Shock cord mount approximately 5 cm inside t' forward part o' the body tube. Avast, me proud beauty! Ya scallywag!
  4. Tie free end o' shock cord t' t' nosecone’s eyelet. Aye aye! Apply a drop of glue t' t' knot.
  5. Attach parachute t' t' nosecone eyelet.

#5. Avast, me proud beauty! Launch Lug

  1. Glue on t' h: 0.5 cm, matey, l: 4.0 cm, ya bilge rat, w: 0.2 cm piece o' balsa wood 10 cm from the forward end o' t' body tube. Arrr! Make sure that it is aligned parallel t' the body tube, matey, and also make sure that it is in betwixt t' fins. Aye aye! Blimey!
  2. Attach Launch Lug on top o' t' strip o' balsa wood. Avast, me proud beauty! Ahoy! (Note: T' reason for the strip o' balsa wood is t' elevate t' launch lug so as t' provide the launch rod clearance from t' nose cone. Avast, me proud beauty! T' nose at one section is wider than the body tube)

Fins

#6. Avast, me proud beauty! Blimey! Well, blow me down! Blimey! Paint job

  1. Spread balsa filler over t' fins. Allow t' dry and than sand excess off. Blimey! Well, blow me down!
  2. Sand all external parts o' rocket. Begad!
  3. Prime all external parts o' rocket
  4. Paint body tube, shiver me timbers, ya bilge rat, fins, and nose cone red.
  5. Paint Silly putty cackle fruit gray. Ahoy! Well, ya bilge rat, blow me down!
  6. Nose cone
  • First painted t' whole nosecone red
  • Paint t' upper cap white.
  • Paint 2 keyhole shapes on opposite sides o' nosecone. Ya scallywag!

#7. Avast! Ahoy! Body tube and launch lug

  1. Painted body tube red. As well as t' launch lug and balsa wood strip.
  2. Paint 3 parallel black rings approximately 2 mm from each other. Ya scallywag! Paint them approximately 9.3 cm from t' aft end o' body tube. Begad!
  3. Paint a single gray rin' around t' aft end o' t' body tube. Arrr! It should 3.3 cm from t' end o' t' tube, matey, and it should encircle around t' whole tube. Avast!

#8. Blimey! Blimey! Fins

  1. Paint fins red. Ya scallywag! Ahoy!
  2. Paint gray rectangle on each side in t' corner by t' fin root edge. Begad! Blimey! Begad! Blimey! The rectangle should be 3.3 cm high and should be around 4 cm wide. Ahoy! Blimey! Begad! Blimey! If it is a little bit wider than 4 cm it is okay, ya bilge rat, shiver me timbers, because t' Silly Putty cackle fruit will cover the excess. Avast, me proud beauty! Blimey! Arrr! Blimey! (Note: This is easier done if you paint before initial construction. Blimey! Blimey! Well, blow me down! Blimey!

#9. Silly Putty eggs

  1. Paint egg shell red. Begad! Avast, me proud beauty!
  2. Once t' red paint is dry, shiver me timbers, paint most o' t' egg grey. Avast! T' grey should cover 5.2 cm o' t' egg, ya bilge rat, startin' from t' bottom. Arrr! There needs t' be 1.4 cm of red. Avast, me proud beauty!

Finished#10. Ahoy! Decal stickers. Arrr!

  1. Take black sticky paper, and cut into 2.5 cm long by 1 mm strips. Avast! Stick 4 of these length wise on each egg. Ahoy! Avast, me proud beauty!
  2. Then once again usin' t' black sticky paper cut several long 1 mm strips for t' black stripe that runs across t' egg and t' fin.

#11. Avast! Black Dots

  1. Use a black permanent maker t' apply 8 dots t' each egg shell. Ya scallywag! Aye aye!

#12. Avast, me proud beauty! Arrr! Nose Weight and Motor

  1. Add 25-30 grams o' clay t' t' nose.
  2. We used a B6-4 all o' t' launches, ya bilge rat, but a B6-2 would have been better. Well, blow me down!


Flights

Lift-off Landing

Takeoff off. Ya scallywag! Avast! Flight #1 (above). Landing…..

Success flight. Begad! No damage rendered t' rocket.

Flight #2 Landing

Takeoff off. Ahoy! Flight #2 (above). Blimey! But disaster strikes when t' shock cord snaps!!

And lawn darts (below). Begad! Note: We have nay touched t' rocket yet in this picture. It landed exactly like this. Begad! Note that t' third fan, shiver me timbers, t' one stuck in the ground, matey, is still intact. Aye aye! Ahoy! Nose and parachute land a couple hundred feet away. Begad! Begad! T' rocket is now repaired and waits for its next launch. Begad! Begad!

Crash

Here is our video o' t' 2 launches. Ignore our screams in t' background! Blimey!

Here are two more successful flights o' our entry t' Red Bolt. Arrr! We only have videos for these launches:

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