6 Jul 04 - Test flown after re-motoring.
6 Jul 04 - Test flown after re-motoring.
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| N° of launches / Time | 15 | 1 hour 31 mins | Flight times & numbers include all versions | |
| Wingspan | 24.0 " | 0.61 m | ||
| Wing Area | 220 ¨" | 14.2 dm² | ||
| Flying Weight | 6.0 oz. | 169 g | ~ 7¼ oz. | 206 g |
| Wing Loading | 3.92 oz. / ¨' | 11.9 g/dm² | 4.75 oz. / ¨' | 14.5 g/dm² |
| Wing Cube Loading | 3.2 - Glider | ~ 3.8 - Glider | ||
| Motor | Faulhaber DC1717 | Torcman TM200-05-18 brushless motor | ||
| Gearbox | Faulhaber 11.8:1 | None | ||
| Propeller | WES Technik 26cm x 12cm (10¼" x 4¾") | Ramoser VarioProp 6A 3-blade hub with 6.2" diameter scale-optic blades, pitch approx. 3" | ||
| Batteries | 3 Tadiran LiMnO2 780mAh (nominal 9v) | 2 series E-Tec 1200mAh Lithium Polymer cells | ||
| Speed Controller | JMP HF9 - 5 to 8 cells - 1.5A/3A - BEC - high frequency (133kHz) | Hacker Master 18-3P - 18A - 6 to 10 cells - BEC & Brake | ||
| Receiver | Hitec Feather - 4ch - PPM - 35 MHz modified to JST connectors | GWS GWR-4P/H - 4ch - PPM - 35 MHz | ||
| Servos | Flaperons & Tailerons - 2 x Hitec HS-50 | Flaperons - 2
x Hitec HS-50 Elevator - JP Naro |
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| Static motor parameters | 3 LiMnO2 gives 2500 RPM @ 0.9A and 8.5V providing 20W/lb | Not yet tested | ||
| Flight performance | Flies very nicely and easy to control in a smallish hall. Needs more power to allow aerobatics. | Flies superbly, even in strong winds (~ 15 mph). Loops can be large and any aerobatic manoeuvre that can be performed that does not require a rudder. | ||
6 Jul 04 - I changed the Hacker motor to a Torcman TM200-05 motor, which is tiny (diameter 23mm, length 19.5mm, weight 21g). To reduce the weight I used a 2 cell (in series) pack of E-Tec Lithium Polymer cells of 1200mAh rating. The test flight was completed today in a string wind for this little model (~ 15mph). It handled the wind well despite 2 landings being vertical, although perfectly 3 point. I need to fly it in better conditions to really determine the performance and handling.
30 Nov 02 - I decided to fit a Hacker brushless motor to this model so it would fly better outdoors. I also decided that an independent elevator control would be beneficial, so I shoe-horned a JP Naro servo into the original servo mount. The only work now outstanding is to decide what cells I want to use and how to mount them. To keep the model within a sensible loading, I want to aim to restrict the weight to a maximum of around 12 oz. (340g). The model, after conversion, without battery mount and battery weighs slightly under 8 oz. (225g), giving a fair bit of scope for battery selection. I have decided that the 7 cell packs of 500AR will be acceptable despite raising the weight to 13 oz. (370g). We'll see what the model ends up as when it is finished.
31 Mar 01 - Managed to get the first flights in last night. It flew well, but was underpowered making aerobatics impossible. I was lent a Braun 26cm x 16cm propeller to try, which did improve the performance but only marginally. I need to consider options to rectify this. Both wheels were damaged after a minor mid-air collision and had to be removed. Despite this, the model would still take off, land and taxi quite acceptably just using the axles.
26 Mar 01 - I had the 1st chance to fly about 10 days ago, but the model was suffering from glitching due to cross-channel interference. To eliminate this, I have changed the receiver to a Hitec Feather fitted with FMS connectors. The modification was made to save me changing to change over the 2 servos and ESC for standard connectors. Hopefully I can get to fly on Friday and really check out the Tiny.
5 Jan 01 - I don't why I forgot to add this aircraft to the site earlier, but I've just finished it. It is intended as an indoor / front yard flier and is very lightly constructed. Because of using the 3 cell pack of 780mAh Tadiran LiMnO2 (55g 1.94oz.) the all-up-weight is higher than normal. The colouring on the trailing & leading edges and spars was done with big felt tip markers & is very effective. The model was then covered using clear Mylar and thinned cellulose dope on the sheet stabilisers. All I want now is a calm day or a hall to fly in.