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Tue Sep 2 21:30:57 2008 

Art Applewhite
Flying Saucer 24mm (7.25")
P.O.Box 294064
Kerrville, TX 78028
 
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SPECS: 2.75" x 7.5" - oz
ROCKSIM FILE: MISSING - please submit here
SpaceCAD FILE: MISSING - please submit here
REC'D MOTORS: C11-0,D11-P,D12-0,E9-P,all Aerotech 24mm RMS and SU

Rating
(Contributed - by [Featured Reviewer] Dick Stafford[Author's Home Page])

Rocket PicBrief:
This is the 7.25" version of Art's saucer line. Like the larger 9" version (see my review here), this saucer flies on C11-0 and D12-0 motors. The saucer's card stock shell is pre-printed in an USAF motif. Art now offers several designs, various colors, and blank versions of his 6", 7.25", and 9" saucers.

Construction:
The components are the same as the 9" version (but smaller, of course):

  • Preprinted card stock comprises the top and core assembly of the saucer.
  • One 7.25" plastic picnic plate comprises the bottom.
  • One 2.75" BT-50 motor tube
  • One 2.75" motor hook
  • One 3/16" launch lug
  • 3/32" basswood fin stock

Tools and materials required:

  • Scissors
  • Exacto knife
  • Elmers' white glue
  • Rubber cement
  • Clear enamel (RUS-TOLEUM Crystal Clear or equivalent)
  • Double-sided tape
  • 150 grit sandpaper

Construction is identical to the 9" version. You first cut out the top and core pieces and glue them together using the printed tabs, similar to any paper shroud. An inner ring is attached to the core, and the core is glued into the top section. These steps use white glue, and, of course, the glue must dry between each step. Using a provided template, a hole the size of the paper core is cut in the plate. The template is supposed to be attached temporarily with double-sided tape, but I just used clear tape. The plate is to be glued to the saucer assembly with rubber cement. When I built my 9" saucer, I substituted some old Liquid Nails. It had thickened some and I thought the recommended rubber cement would work better. Well, I had bought some fresh Liquid Nails and decided to try it again. This time it worked fine.

Rocket BottomTo assemble the fin can, you mark, cut and sand the fins. These are attached to the motor tube like any other fins. You optionally can add card stock spin tabs. On this saucer, I elected to leave them off (I used them on my 9" version). Finally, the launch lug is added and the fin unit is complete. If you are going to use the spin tabs, make sure you glue the launch lug on the side of a fin that is away from the direction of the tabs. As with my previous saucer, I left off the motor hook to allow longer motors, staging, etc.

The last step is to sand the tip of the fins so that the fin assembly slides into the core section of the saucer.

Finishing:
Finishing consists of spraying the printed top and core of the saucer with clear enamel. You have to make sure not to get this on the plastic plate as the paint might damage it. I guess you could paint the fin can, but I elected to leave it naked.

Construction Rating: 4 ½ out of 5

Flight:
I flew the saucer on a D12-0. Its boost was noticeably faster than its 9-inch cousin (no real surprise) and it really put those silly plastic RTF saucers to shame :-). As with the bigger saucer, the fin unit and saucer sections did not separate. Unlike the bigger saucer, however, it came down nose first.

Flight Rating: 5 out of 5

Summary:
This saucer is easy and fun to build. It looks better, IMHO, than the RTF ones, and there are several colors/patterns to choose from. If you like saucers, I suggest you get one of these and go drag race a Snitch :-).

Overall Rating: 5 out of 5


Rating
(by Mike Salter)

Rocket PicBrief:
This is another of Art's flying saucer collection, this one is 7.25" in diameter and will fly to heights between 150 to 300 feet.

Construction:
All of the components were of high quality, the tube was neatly cut and the fin material was basswood for extra strength. The top and core sections are made of card stock and the bottom is a plastic party plate.

Art's instructions are very clear and include good size diagrams to stop you going wrong, in total the instructions take up three pages and are in 25 steps. I won't take you through construction order so as not to repeat Dick's review above too much. The most difficult stage in this kit is cutting the inner circle out of the plastic plate, a template is given to guide you but as is suggested in the instructions its best to make several lighter passes round the plate. I managed to cut the basswood fins slightly to small (fool!) so the fin section was a bit loose within the core.

Finishing:
You can get many designs pre-printed on the top core of the saucer but I bought a plain one and decided to paint the top cone and fin section silver then the core and plate black. I tested my paint on the scrap bit of plate cut out earlier to check there would be no bad affects.

Construction Rating: 5 out of 5

IgnitionFlight:
The flights on this saucer are excellent, this model is great introduction flying saucers and a good way to start breaking away from standard rockets. It's very easy to prep as you only need install the motor/ignitor so you can lots of flights of it in a short time. The model leaves the pad quite quickly but once the propellant is burnt it slows down quickly then turns over and come down top first.

Recovery:
The model tumbles down but in a very controlled way staying 'nose' down all the way. As by fin section was loose with the core it was knocked out on one landing, I also feel a little damage to the motor tube could be sustained if it landed on something hard.

Flight Rating: 5 out of 5

Summary:
This model is easy to construct and provides great flights, its available in lots of good designs but if you don't like any of them you can still buy a plain one. Cons - Well none!

Overall Rating: 5 out of 5

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Date Name Motor Ejection/
Altitude
Wind Notes
03-22-2004 Bob Cox Est SU C11-0 None - Tumble 5-10 mph winds Texas Special - Loud straight boost. Twisting tumble at burnout. Gently rocking aero-shell descent. Bounced off some tree branches on way down, but landed safely in tall grass.
03-22-2004 Bob Cox Est SU D12-0 None - Tumble 5-10 mph winds Texas Special - Long loud boost, arching into wind. Quickly slowed at burnout and descended with gently rocking aeroshell action. Great motor for this saucer.
04-04-2004 Bob Cox Est SU D12-0 None - Tumble 5-10 mph winds Texas Special - Long low boost. Neat spray pattern at booster motor burnthrough. Turned over and gently descended with no rocking, just slow gentle spin. Landed about 10 feet from pad. GREAT FLIGHT.
04-27-2004 Bob Cox Est SU C11-0 None - Tumble 5-10 mph winds Event: Scout Launch
Texas Special - Lots of flame and smoke from 24mm engine. Veered into wind off end of rod. Rose to about 100', then nice spark show at booster engine burnthrough. Safe landing. Flight time: 5.4 sec.
07-04-2004 Bob Cox Est SU D12-0 None - Tumble 10+ mph winds Texas Special - Nice straight slow boost. Flash at ejection, then turned nose-down and gently rocked during descent. Landing on grass, just missing gravel road by 2 feet. No damage. Nice.
08-08-2004 Bob Cox Est SU C11-0 None - Tumble 5-10 mph winds Texas Special - Nice boost, with cool forked smoke trail at ejection. Gentle nose-down descent.
09-05-2004 Bob Cox Qst SU C6-5 Very Late 5-10 mph winds Texas Special - Engine was Quest C6-5 that was mislabeled as C6-0, inside a 24-to-18mm adapter. L-O-N-G slow boost. Landed about 20 feet from pad, then ejected. Post-flight showed partly clogged nozzle, which may explain long slow boost.
10-09-2004 Bob Cox Est SU D12-3 Just Past (1-2sec) Calm Texas Special - Nice loud fiery boost. Ejection charge looked great against dusk sky. Gentle descent with no rocking. Landed about 30 feet from pad.
11-13-2004 Bob Cox Est SU D11-P None - Tumble 0-5 mph winds Texas Special - Loud slow fiery flight. Wiggled a bit off end of rod, then straightened out for nice flight. Descended nose-down with little/no rotation. Landed about 4 feet from pad.
04-02-2005 Bob Cox Est SU D11-P None - Tumble 0-5 mph winds Texas Special - Nice slow arcing boost, then turned over and returned to ground with very little rocking or turning.
04-03-2005 Bob Cox Est SU D12-0 None - Tumble Calm Texas Special - Nice slow straight ascent, puff of smoke at burnout, then immediately turned over and slowly descended with gentle rocking motion. Landed about 25 feet from pad -- almost caught it. 12 second flight.
06-22-2005 Bob Cox Est SU D11-P None - Tumble Calm Event: Scout Launch
Texas Special - Drag Race vs. Ultra Delta. Simultaneous ignition. Texas Special took early lead, but UltraDelta went higher. Caught in midair after gentle rocking descent.
07-03-2005 Bob Cox Est SU D11-P None - Tumble 10+ mph winds Texas Special - Nice fast boost, with arc into wind before burnout. Turned over and gently returned safely with little rocking.
07-03-2005 Bob Cox Est SU D12-3 None - Tumble 10+ mph winds Texas Special - Nice loud boost. Flipped over after burnout. Ejection charge fired during descent. Landed safely about 50 feet from pad.
07-10-2005 Bob Cox Est SU D12-3 Just Past (1-2sec) 5-10 mph winds Texas Special - Nice boost with slight arc into wind. Ejected during descent, then tumbled to safe landing about 25 feet from pad.
09-04-2005 Bob Cox Est SU D12-3 None - Tumble 5-10 mph winds Texas Special - Typical flight. Straight up, come to a quick stop after burnout, turn over and gently descend.
10-16-2005 Bob Cox Est SU D12-3 None - Tumble 5-10 mph winds Texas Special - Straight boost, quick stop. Charge fired on way toward ground. Landed nose-first in grass, then bounced right-side up, still smoking.
08-20-2006 Bob Cox Est SU D12-0 Apogee - NC Up 0-5 mph winds Event: Soccer Field
Texas Special - Straight loud boost, then stopped in mid-air at ejection. Fell to ground level TAIL-FIRST. Never seen that happen before. 14 sec.
09-03-2006 Bob Cox Est SU D12-0 None - Tumble 0-5 mph winds Event: Rodeo Ground
Texas Special - Fast boost with slightest hint of wiggle. Instantly stopped when ejection charge fired. Smooth level nose-first descent. Perfect flight. 12 sec.
09-24-2006 Bob Cox Est SU D12-0 Apogee - NC Up 5-10 mph winds Event: High School C
Texas Special - Fast boost with minimal wiggle, then sudden stop when ejection charge fired. Gentle nose-down descent to safe landing on grass. 11 sec.
10-28-2006 Bob Cox Est SU D11-P None - Tumble 10+ mph winds Event: Maple Island
Texas Special - Arced over shortly after leaving rod, then slowly plowed into heavy wind. At burnout, saucer quickly matched speed with wind. Flew parallel to ground before landing about 150 feet downwind. 12 sec.
10-28-2006 Bob Cox Est SU D11-P None - Tumble 10+ mph winds Event: Maple Island
Texas Special - 5-way Saucer Drag Race. Slowest off pad, but then caught up and flew in formation with Ultra D11 and Ultra C6. Landed about 2 feet from Utra C6. FUN!
07-01-2007 Bob Cox Est SU D11-P None - Tumble 0-5 mph winds Event: Rodeo Grounds
Texas Special - Fast (for a saucer) straight boost. Gentle landing.
09-09-2007 Bob Cox Est SU D11-P None - Tumble 5-10 mph winds Event: Century
Texas Special - Straight boost with turn into wind near end. Turned over and descended slowly with no spinning and gentle rocking. Soft landing about 30 feet from pad. 9 sec.
04-20-2008 Bob Cox Est SU D11-P None - Tumble Calm Event: Schmidt
Texas Special - Shot straight up with a beautiful tail of flame in the twilight. At burnout, quickly stopped, turned nose-down, and descended with gentle rocking.
05-24-2008 Bob Cox Est SU D11-P None - Tumble 10+ mph winds Event: Maple Island
Texas Special - Arced into wind until flying nearly horizontal. At burnout, instantly stopped and blew backward, landing about 30 feet from pad.
06-19-2008 Bob Cox Est SU D11-P None - Tumble Calm Event: Schmidt Park
Texas Special - Fast noisy boost, then sudden stop after burnout. Flipped over and gently fell nose-first into soft grass.
07-04-2008 Bob Cox Est SU D11-P None - Tumble 0-5 mph winds Event: Rodeo Grounds
Texas Special - Drag race vs. Tater's Flaming Ultra Delta. Delta first off pad. Both reached about same height and got back to ground at same time. Tater caught his in mid-air. 11 sec.
03-26-2006 Bill Eichelberger Est SU D11-P None - Tumble 5-10 mph winds Event: Quark Section Launch
- Decent flight, but landed hard on one side and cracked the baseplate. I'll fly it until it's dead.
11-04-2006 Bob Harrington AT RMS F12-3 None - Tumble 5-10 mph winds Event: CMASS section launch
- Fun flight
11-18-2006 Bob Harrington AT RMS F12-3 None - Tumble 0-5 mph winds Event: CMASS section launch
-
05-12-2007 Bob Harrington Est SU D12-5 None - Tumble 5-10 mph winds Event: CMASS Section launch
- Fun flight
06-09-2007 Bob Harrington Est SU D12-5 None - Tumble 5-10 mph winds Event: CMASS section launch
-
10-01-2005 Ken Jarosch Est SU D11-P None - Tumble 10+ mph winds - MASA LAUNCH - I built this for rms reloads. This was a test. Saucer took off great, went higher than I expected. Areobrake recovery.
07-05-2003 Daniel Kirk Est SU E9-6 Just Past (1-2sec) 0-5 mph winds - Long, slow, smoky boost -- like the D12, only more so.
04-09-2006 Ron McFerren Est SU C11-0 None - Tumble 5-10 mph winds - 1st flight for this UFO. Doesn't get very high on a C11, but it sure gets there quick. Both sections separated for a perfect recovery.
04-09-2006 Ron McFerren Est SU C11-0 None - Tumble 5-10 mph winds - 2nd launch of the day. Another quick flight. Sections did not separate this time. Landed nose first. No damage.
05-20-2006 Ron McFerren Est SU C11-0 None - Tumble 0-5 mph winds - Another great flight for this saucer. Landed right in my arms without my having to take a single step!
07-13-2002 Dick Stafford Est SU D12-0 None - Unknown 0-5 mph winds USAF - a lot faster than its larger cousin (9 inch); parts didn't separate and it came down nose first; no damage
07-28-2002 Dick Stafford Est SU C11-0 None - Unknown 0-5 mph winds USAF - 1st stage of a pair of staged saucers; arced to about 20 feet, 2nd stage went parallel to the ground and then nose-dived. 2nd stage burned a bit.
11-09-2002 Dick Stafford Est SU C11-0 None - Glider Calm USAF - great flight; blowthru at end of burn was extra energetic - had to double check it was a booster motor
06-15-2003 Dick Stafford Est SU D12-0 None - Tumble 0-5 mph winds USAF - nice flight, a visual bechnmark for my micro-hybrid flights, didn't work for that as I was too close to the latter
06-15-2003 Dick Stafford MicroHybrid None - Tumble 0-5 mph winds USAF - (0.0225 injector) higher flight and longer burn than the larger injector (calibrated by my eyeballs); close to the D12
06-15-2003 Dick Stafford MicroHybrid None - Tumble 0-5 mph winds USAF - (0.031 injector) good flight, noticably faster and shorter burn than the smaller injector
06-15-2003 Dick Stafford MicroHybrid-P None - Unknown 0-5 mph winds USAF - (0.031 injector) Lots of gas was escaping; mis-fired (starter burned but paper grain didn't ignite)
10-05-2003 Dick Stafford MicroHybrid-P None - Tumble 10+ mph winds USAF - lots of gas was leaking; LCO couldn't find the right pad; ignited but only went to ~15-20 ft
06-06-2004 Dick Stafford Est SU D12-0 None - Tumble Calm Event: ECRM-31
USAF - nice
07-10-2004 Dick Stafford Est SU D12-0 None - Tumble Calm Event: NARHAMS
USAF - great flight
08-14-2004 Dick Stafford Est SU D12-0 None - Tumble Calm Event: NARHAMS
USAF - good flight
10-16-2004 Dick Stafford DRD 'C' Reload None - Tumble 10+ mph winds USAF - reload of an Estes C11 with KN/SB (+1% red iron oxide) tubular grain; low thrust caused a 'cruise missile' at ~10ft; never seen this in a saucer
10-16-2004 Dick Stafford DRD 'C' reload None - Tumble 10+ mph winds Event: Coverdale
USAF - reload of an Estes D12 with KN/SB (+1% red iron oxide) tubular grain; slow start, boosted, then blew the forward plug
10-16-2004 Dick Stafford DRD 'C' reload None - Tumble 10+ mph winds Event: Coverdale
USAF - reload of an Estes D12 with cast KN/SB (+1% red iron oxide) and a central core; good initial boost but it lost power and continued to burn with almost no thrust
10-23-2004 Dick Stafford DRD 'D' Reload None - CATO 5-10 mph winds Event: ESL77
USAF - blew the forward closure, I need to clear out the top better before epoxying
04-23-2005 Dick Stafford Est SU D12-0 None - Tumble 10+ mph winds Event: TRF #3
USAF - nice flight
05-27-2006 Chan Stevens Est SU D12-0 Very Early 0-5 mph winds Event: section launch
-
07-08-2006 Chan Stevens Est SU D12-0 None - Tumble 0-5 mph winds -
09-10-2006 Chan Stevens Est SU D12-0 Very Early 5-10 mph winds -
09-28-2005 Rod Thrasher Est SU C11-0 None - Tumble 0-5 mph winds Event: FCS Rocket Day
- Great flight.
09-28-2005 Rod Thrasher Est SU D12-0 None - Tumble 0-5 mph winds Event: FCS Rocket Day
- Another great flight.
 

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