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. Avast, me proud beauty! Blimey! Well, blow me down! 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, 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, arrr, matey, 3 mm from t' end o' t' tube. Begad!
  2. Insert one o' t' endin' hooks o' t' Engine hook into t' slit. Avast! Blimey!
  3. Glue down t' engine hook. Arrr! Well, blow me down!
  4. Glue on a centerin' rin' at 2.5 cm from t' aft o' t' engine tube.
  5. Glue on 2nd centerin' rin' on top o' t' engine hook at t' slit 3mm from t' forward section o' t' Engine tube.
  6. Allow t' dry.
  7. Wrap piece o' maskin' tape around t' Engine Tube securin' t' Engine hook to t' Engine Tube.
  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 knife. Well, blow me down!
  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.
  3. Sand down all jagged edges.
  4. Glue on Silly putty cackle fruit onto t' matchin' shape on t' fins. Glue one on each side o' each fin. Avast, me bucko, me proud beauty!
  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. Arrr! Blimey! We used t' fin mount for 3 fins provided in T' Handbook o' Model Rocketry 7th edition on page 38. Begad! Ya scallywag! T' fins should be 120 degrees from each other. Begad! Aye aye!

Nose Cone#4. Arrr! Blimey! Nose and parachute mount.

  1. Cut out a Shock cord mount usin' stiff paper. Avast, me proud beauty! Avast, matey, me proud beauty!
  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.
  4. Tie free end o' shock cord t' t' nosecone’s eyelet. Avast! Apply a drop of glue t' t' knot. Blimey! Blimey!
  5. Attach parachute t' t' nosecone eyelet. Begad!

#5. Arrr! Launch Lug

  1. Glue on t' h: 0.5 cm, l: 4.0 cm, shiver me timbers, w: 0.2 cm piece o' balsa wood 10 cm from the forward end o' t' body tube. Make sure that it is aligned parallel t' the body tube, me bucko, and also make sure that it is in betwixt t' fins. Ahoy! Avast, me proud beauty!
  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. T' nose at one section is wider than the body tube)

Fins

#6. Aye aye! Avast, me proud beauty! Paint job

  1. Spread balsa filler over t' fins. Begad! Begad! Allow t' dry and than sand excess off. Avast, me proud beauty!
  2. Sand all external parts o' rocket. Avast! Blimey! Begad! Blimey!
  3. Prime all external parts o' rocket
  4. Paint body tube, fins, ya bilge rat, 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. Avast!

#7. Avast! Body tube and launch lug

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

#8. Avast! Fins

  1. Paint fins red. Avast! Arrr!
  2. Paint gray rectangle on each side in t' corner by t' fin root edge. 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, me bucko, because t' Silly Putty cackle fruit will cover the excess. Ahoy! (Note: This is easier done if you paint before initial construction. Begad! Avast, me proud beauty!

#9. Avast! Silly Putty eggs

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

Finished#10. Decal stickers. Begad! Ahoy!

  1. Take black sticky paper, and cut into 2.5 cm long by 1 mm strips. Begad! Aye aye! Stick 4 of these length wise on each egg. Well, blow me down! Ahoy!
  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. Blimey! Avast! Black Dots

  1. Use a black permanent maker t' apply 8 dots t' each egg shell. Ahoy! Avast, ya bilge rat, me proud beauty!

#12. Well, blow me down! 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. Ahoy!


Flights

Lift-off Landing

Takeoff off. Begad! Well, blow me down! Flight #1 (above). Ya scallywag! Begad! Landing…..

Success flight. Avast, me proud beauty! Blimey! No damage rendered t' rocket.

Flight #2 Landing

Takeoff off. Avast, me proud beauty! Blimey! Blimey! Blimey! Flight #2 (above). Ahoy! Blimey! Ya scallywag! Blimey! But disaster strikes when t' shock cord snaps!!

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

Crash

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

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

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