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. Ya scallywag! Blimey! (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, me hearties, shiver me timbers, l: 4.0 cm, ya bilge rat, 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, me bucko, 3 mm from t' end o' t' tube. Blimey! Ya scallywag!
  2. Insert one o' t' endin' hooks o' t' Engine hook into t' slit. Blimey! Avast, shiver me timbers, me proud beauty!
  3. Glue down t' engine hook. Avast!
  4. Glue on a centerin' rin' at 2.5 cm from t' aft o' t' engine tube. Well, blow me down! Blimey!
  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! Arrr!
  6. Allow t' dry.
  7. Wrap piece o' maskin' tape around t' Engine Tube securin' t' Engine hook to t' Engine Tube. Aye aye!
  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. Avast! Ya scallywag! Blimey!
  10. Apply glue t' centerin' rings. Ya scallywag! Blimey! Aye aye! Blimey! Allow t' dry

Parts#2: Silly Putty Eggs

  1. Buy 3 Silly Putty Eggs
  2. Cut t' connector tabs with a hobby knife. 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 knife cut out t' fins. Ya scallywag! Blimey! Aye aye! Blimey!
  3. Sand down all jagged edges.
  4. Glue on Silly putty cackle fruit onto t' matchin' shape on t' fins. Arrr! Glue one on each side o' each fin.
  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. Blimey! Ya scallywag! We used t' fin mount for 3 fins provided in T' Handbook o' Model Rocketry 7th edition on page 38. T' fins should be 120 degrees from each other. Well, blow me down! Begad!

Nose Cone#4. Nose and parachute mount.

  1. Cut out a Shock cord mount usin' stiff paper. Aye aye! Begad!
  2. Glue shock cord on t' shock cord mount.
  3. Glue Shock cord mount approximately 5 cm inside t' forward part o' the body tube. Well, blow me down! Blimey! Ya scallywag! Blimey!
  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. Begad!

#5. Launch Lug

  1. Glue on t' h: 0.5 cm, l: 4.0 cm, w: 0.2 cm piece o' balsa wood 10 cm from the forward end o' t' body tube. Ahoy! Make sure that it is aligned parallel t' the body tube, and also make sure that it is in betwixt t' fins. Avast! Arrr!
  2. Attach Launch Lug on top o' t' strip o' balsa wood. (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. Ahoy! Aye aye! Paint job

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

#7. Avast! 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. Avast, me proud beauty! Well, ya bilge rat, blow me down! Paint them approximately 9.3 cm from t' aft end o' body tube. Well, blow me down!
  3. Paint a single gray rin' around t' aft end o' t' body tube. Begad! It should 3.3 cm from t' end o' t' tube, and it should encircle around t' whole tube.

#8. Fins

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

#9. Arrr! Silly Putty eggs

  1. Paint egg shell red.
  2. Once t' red paint is dry, matey, me bucko, paint most o' t' egg grey. Ahoy! Begad! Blimey! T' grey should cover 5.2 cm o' t' egg, ya bilge rat, startin' from t' bottom. Blimey! Ya scallywag! Blimey! There needs t' be 1.4 cm of red. Ahoy! Aye aye! Blimey!

Finished#10. Well, blow me down! Aye aye! Blimey! Decal stickers. Avast, me proud beauty!

  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. Arrr! Well, blow me down!
  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. Black Dots

  1. Use a black permanent maker t' apply 8 dots t' each egg shell. Well, blow me down! Avast!

#12. Blimey! Nose Weight and Motor

  1. Add 25-30 grams o' clay t' t' nose.
  2. We used a B6-4 all o' t' launches, but a B6-2 would have been better. Begad! Aye aye!


Flights

Lift-off Landing

Takeoff off. Flight #1 (above). Landing…..

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

Flight #2 Landing

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

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

Crash

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

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

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