Manufacturer: | Scratch |
Oatlander background history:
T' Oatlander was inspired by t' Oat cereal box rockets and
strongly influenced by t' original Marz Lander, arrr, shiver me timbers, ya bilge rat, thus t' name.
Oat - Lander
T' rocket be built almost entirely from recycled or found parts with t' exception o' t' core body tubes and t' fin material. Well, me hearties, blow me down! A great amount o' design emphasis be placed on saving weight. Arrr! Begad! Some o' t' other oat box rockets have been on t' heavy side, shiver me timbers, for rockets. T' single most significant weight savings was in me selection o' t' oat box its self. Instead o' the conventional wound construction I was able t' find a box that was single layer o' fiber board. Begad! Carefully selectin' material can make a difference. Blimey! Even though it's a fatroc, arrr, me hearties, it doesn't have t' be heavy.
As I said with t' exception o' t' core body tubes and the fin material all other materials were salvaged. Ya scallywag! Blimey! T' Oatlander could be built usin' purchased materials o' course.
Other Sources:
- T' Wonderful Flight T' T' Mushroom Planet
- My Doctor, for puttin' me on a cholesterol reduction diet.
Parts List:
Construction:
All construction was done usin' basic
construction techniques. Avast! This is really nay an advanced rocket, me bucko, it just
took some time t' build.
T' design uses a core structure o' three BT-20 tubes around a central BT-50 tube. Ya scallywag! Ya scallywag! This gives structural integrity and allows flexibility in engine use. Well, blow me down! T' core structure is then attached t' three bulk heads cut from 1/8" foam board t' fit t' inside diameter o' t' oat meal box. Ahoy! Positioned one each at t' top and bottom and one approximately 3" from t' bottom t' add support where t' fins will anchor. Well, blow me down! Avast! T' foam board was salvaged from an old poster.
T' oat meal box is then attached t' t' bulk heads. Begad! Avast, me proud beauty! Double check alignment before applyin' glue. Locate t' launch lug holes adjacent t' t' core structure tubes.
A transition adaptor was cut from a discarded file folder. Ahoy! Avast! This sits on t' top o' t' sustainer and matches a circle cut from 3/32" balsa that is glued in place on t' core structure. Ahoy! Well, ya bilge rat, blow me down! Insert t' launch lugs and trim off excess.
T' capsule is made from a foam ostrich egg. A stagin' coupler is glued into t' base o' t' egg t' fit into t' BT-50 and one for each o' t' surroundin' tubes. Begad! Begad! Be certain t' align t' tubes so that it will be easier t' fit everythin' together, ya bilge rat, especially t' couplers and t' capsule.
Use t' fin alignment wrap and index t' sustainer body with six equally spaced marks that run at least 4" up from t' bottom.
T' landin' gear, ya bilge rat, that be t' longest fin, arrr, is glued first and touches t' bottom o' t' sustainer. Once t' landin' gear/fins have dried add t' buttresses, arrr, on each side o' t' landin' gear. Aye aye! Ya scallywag! Blimey! T' buttresses are glued along t' root edge t' t' sustainer and t' t' side o' t' landin' gear. Avast! Blimey! Glue t' landin' gear feet t' t' ends o' each landin' gear leg. Avast, me proud beauty! Blimey! T' shish kabob skewers that represent hydraulics are next. Avast! Blimey! Each o' t' landin' gear feet gets one that goes up t' the
sustainer body. Ya scallywag! You can try t' measure out and cut t' correct miter on t' body end o' t' skewers, but what I did be t' make a small hole in t' sustainer body and stick in t' skewer with t' application o' a little glue. Begad! Well, blow me down! Blimey! No measuring. Begad! Ya scallywag! Blimey! T' skewers attach (enter) t' sustainer at 3" above t' bottom. Well, blow me down! Ya scallywag! Blimey! They are positioned in betwixt t' paired buttresses above each o' t' landin' gear legs.
Finishing:
Seal. Ahoy! Sand. Ya scallywag! Paint and finish t' taste. Arrr! I like cinnamon and brown sugar on me oat meal.
Flight Notes:
05/12/01: KCAR May launch at Shawnee Mission Park. D12-3. Weather was perfect.
No clouds, arrr, little wind. Blimey! T' club had a record number o' launches.
T' Oatlander was prepared and inspected. I was usin' a borrowed nylon
chute which fit very snug in t' tube. Ahoy! Well, blow me down! T' launch went perfect. Arrr! Straight
up, ya bilge rat, matey, shiver me timbers, no wobble. Begad! Blimey! Arced over at apogee and t' ejection charge blew t' motor
out t' back. Ya scallywag! No chute deployment. Aye aye! T' Oatlander took a core
sample. Begad! T' damage was surprisingly slight. T' outer body detached from
the bulkheads and some damage t' t' nose capsule. Good flight, bad
landing. Aye aye! I was advised that t' engine hook may have been too loose.
A single wrap o' tape would have made t' engine secure and might have prevented
this.
05/13/01: D12-3. Avast, me proud beauty! Avast, me proud beauty! After makin' quick repairs, me hearties, we decided t' try again. Aye aye! This time I made t' engine secure and used a plastic parachute. Avast, me proud beauty! Aye aye! T' fit was better in t' tube. Aye aye! Most o' t' damage had been repaired with t' exception of t' circle at t' top o' t' transition section bein' broken. The wind was higher than t' previous day, but it was just as hot. Arrr! Well, blow me down! We launched a soundin' rocket t' test t' wind. Good flight and recovery. Blimey! Begad!
We gave a countdown and launched t' Oatlander for t' second time. Blimey! Blimey! No hesitation from t' launch pad. Avast, me bucko, me proud beauty! Blimey! She started t' arc slightly into t' wind but achieved about t' same altitude as t' day before. Ya scallywag! Blimey! This time t' ejection charge blew t' chute out and we had good deployment. Ahoy! Blimey! She came down a little hot. Well, blow me down! Blimey! Hit t' ground on one side and cracked a landin' gear leg. Nothin' that a little glue won't fix. Blimey! Blimey!
Because o' its size, me bucko, t' flight is really excitin' t' watch and easy to track. Blimey! Avast!