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The first powered flight was made at our local college sports grounds. It offered lots of space, and
very few people about. This flight was also was very successful. With 3mm camber down (both
flaps and ailerons) and 1mm of up elevator it easily climbed away under full power from my spring
switch on the radio. I did a couple of circuits to verify trim deciding not to change anything, no
clicks. I then went into a high altitude clean wing stall, no problem at all, just dropped the nose and
carried on. The objectives being achieved, next up was a clean wing landing. There was a
gentle wind right to left in the above photo so I was able to do a base leg outwards the sea and a
long flat final. The Hornet just goes on and on in ground effect with a clean wing.

Next flight was a CG test. I climbed to 300 – 400 feet and put the nose down in a 40 deg dive, it
pulled up indicating a forward CG. I repeated the trimming flight with the CG 3 mm further back
with similar but better results. I suspect I'll eventually end up flying at around 84mm to maintain a
consistent 40 deg dive but I don't like making large CG changes so it will take a while to reach that
level of tune.

Next flight verified Loiter mode, certainly flew slower and with adequate control. Nice.

Next flight tested crow at altitude, the initial setting I would use in the turn to final was stable with
just hint of ballooning so I carried on and landed in this configuration. My initial setting does not
have a lot of down flap so it could be carried to the ground. The space used for the landing was
about 50% of the previous clean wing landings. Aileron control with reflex was adequate.

Next flight was full flap testing. It certainly slowed the speed in a steeper descent, control was a
bit mushy but this was expected. Just before the landing flair I dumped the flaps back the initial
crow settings to avoid damaging the flaps on the ground. Going to have to remember about this
in the future, it would be very easy to to excited about a perfect landing and forget about protecting
the flaps.

Final Impression

Overall I pleased with the plane and it's performance. It will be several months before I stop
making changes to the programming and the way I fly it but at this point it is a winner, achieving all

Содержание Hornet Motor Glider

Страница 1: ...Hornet Motor Glider...

Страница 2: ...tor glider with modest power can be built if gliding and thermalling is the primary function A powerful in runner motor can be fitted if high speed powered flight is the objective In this build I have...

Страница 3: ...with cockpit canopy bell crank cover plate 2 x Wings 2 x Fully flying elevators 1 x Carbon main spar 2 x 4mm control rods 1 x Small components bag 2 x Aileron servo covers 2 x Flap servo covers 2 Fla...

Страница 4: ...election Power I chose an emax GT2812 1180Kv motor weighing 105g that would produce 1 4Kg of thrust at 28A 10200 rpm on a standard 10 x 5 prop This equated to 336watts I selected an emax 40A continuou...

Страница 5: ...he glider in their respective positions and try a CG test At this early stage it is not necessary to be totally accurate the objective being to verify that motor and LiPo choices made are practical Th...

Страница 6: ...ing is laid up I used a mixture of carbon tow and light glass roving This is epoxied in place on both sides of the firewall Peal ply is then applied to remove excess resin and ensure the layup is comp...

Страница 7: ...for the LiPo and to strengthen the cockpit area that is a traditional problem area in molded gliders The Hornet is stiffer than most around the cockpit but the additional strength will help with the...

Страница 8: ...od ends to stop them from splitting The rudder clevis edges had to be ground off to clear the rudder horn fairing Horizontal Stabiliser These fully flying elevators are very effective but pose a probl...

Страница 9: ...eams were equal and marked the position on the vertical stabiliser I then cut a length of fishing braid and marked the positions of the center seam of the fuselage and elevator leading edge I ll keep...

Страница 10: ...the covers in place after the servos and control rods were fitted Ailerons I found the fibre glass aileron horns would not readily fit under the fairings and therefore discarded them I made some brass...

Страница 11: ...skin of the wing The balsa trailing edge spar has to be dremelled out to allow passage of the control rod The horns were then epoxied in place with the top edge of the horn contacting the upper wing...

Страница 12: ...llowed for the material set sufficiently for flight NB This glider will operate sub 100km hr this fixing method is most certainly not suitable for anything anything faster If a warmliner is being buil...

Страница 13: ...it s whole range Take all the time necessary to ensure both the aileron and flap operation works perfectly once you are satisfied with the operation the servos can be fixed in position with silicon se...

Страница 14: ...e right slider Aileron rudder mixing on Aileron and flaps set 3mm down Elevator trimmed for slow speed Landing mode Allocated to the back position left hand switch High rates selected for ailerons ele...

Страница 15: ...of aircraft types If an appropriate template can be found programming work can be greatly reduced...

Страница 16: ...en my modest amount of power and simply launch the plane and see if it would fly I chose an area over a gully where the plane could be firmly hand launched downward to gain airspeed and then have risi...

Страница 17: ...4mm to maintain a consistent 40 deg dive but I don t like making large CG changes so it will take a while to reach that level of tune Next flight verified Loiter mode certainly flew slower and with ad...

Страница 18: ...if I see a nice looking thunder storm approaching I can put in the car assembled and be flying in 10 minutes Such windows of opportunity are short lived and do not allow for a major expedition of get...

Страница 19: ...Gallery...

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Страница 22: ...vator and rudder as a set All measurements are in mm is up is down Exponentials are shown as percentages High Rates Medium Rates Low Rates Aileron 18 9 60 15 8 50 9 6 40 Elevator 12 12 60 10 10 50 8 8...

Страница 23: ......

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