Riveted the rudder

Riveted the rudder and started on the ailerons.

Dimpled the H-stab

Dimpled the H-stab. Match drilled the rudder. Now I have to wait for Lasse (the controller) before I rivet the skin onto the skeleton.

I also tried the Duplicolor spray on the tip. It looked nice. The color is dark green. The process will be to use Duplicolor plastic primer on the fiberglass parts and Duplicolor aluminium primer on any aluminium parts I want to paint. Then on top I will use Duplicolor 2K clear paint. This should look nice and be very durable.

I saw on the EAA webinar that some actually use Latex paint. I think Latex paint in the USA is the same as we call acrylic waterbased paint?, normal house paint. It looked very interesting, but I think I will stick to Duplocolor car paint, or else I would have to experiment a whole bunch to find good Latex paint here in Norway.

Match drilled all the holes in the h-stab skin

I left the elevators on to be sure they fitted after the match-drilling.

Engine alternatives.

Searched the web to find possible engines. The default is the AeroVee, but there are surprisingly many alternatives with similar HP and weight, maybe lots more than I have found. I sorted them according to price. Realistically the only real alternatives for me are the Revmaster and the Sauer 2200/2400. They are more or less "plug and play".

Name	Type	HP max	RPM (prop)	HP cont	RPM (prop)	cc	weight [kg]	Price €
AeroVee	2.1	80	3400	80	3400	2180	73	€ 5 114,72
Great Plains	2300	80	3600	76	3400	2276	75	€ 5 231,71
Revmaster	2300	85	3200	80	3000	2331	77	€ 5 765,48
Sauer	1800 UL	68	3200	65	3000	1835	64	€ 8 067,57
Viking	Honda	110	2300	100	2200	1500	81	€ 9 498,24
Sauer	2200 UL	85	3000	80	2700	2234	66	€ 9 838,72
Sauer	2400 UL	100	3500	90	3000	2332	75	€ 10 873,37
Jabiru	2200	85	3300	80	3000	2200	64	€ 11 333,54
Verner	Scarlet 7H	110	3500	90	2800	4127	82	€ 11 990,00
Rotax	912 UL	80	2200	70	2000	1300	72	€ 12 218,29
D-Motor	LF26	92	3000	89	2800	2690	57	€ 12 600,00
Rotax	912 ULS	100	2200	90	2000	1400	75	€ 13 584,16
Sauer	S 2100 ULT	110	3000	100	2800	2161	76	€ 13 971,39
Jabiru	3300	120	3300	110	3000	3300	84	€ 14 550,80
ULPower	260i	97	3300	82	2800	2592	72,3	€ 14 700,00
ULPower	260iS	107	3300	90	2800	2592	72,3	€ 15 800,00
D-Motor	LF39	130	3000	125	2800	3993	78,5	€ 17 800,00
Rotax	912iS	100	2200	90	2000	1400	75	€ 18 444,42
ULPower	350i	118	3300	102	2800	3503	78,4	€ 18 800,00
Limbach	L2400 EB	84,2	3200	82	3000	2424	82	€ 19 500,00
Limbach	L2400 EFI	100	3000	100	3000	2424	76	€ 23 900,00

Elevators finished

Even the 31 drill is too small for the dimple die. Drill up all the holes to 30 and dimpled. A few stems protruded maybe 1/10 of a mm or less, which was easy to fix with a scothbrite wheel on a drill. So I think I continue with 30 drill bits for now. Also drilled the hinges on the H-stab.

Sonex will send new parts for the defect vertical stab parts.

Drilled elevator skins

The 31 and 32 drill bits came today from Aircraft Tool Supply. The 31 drill bit works, but the 32 drill bit is nonsense. It is nonsense because the hole becomes too small for a cleco. Although it is possible to push a cleco in there by force, you don't want to do that because you will damage the skin. The cleco itself does not work properly when the hole is too small, the friction will be so large that the spring does not engage, so the cleco does not clamp the pieces together. I haven't tried the dimple dies, but I would guess also the 32 holes are too small for the dies.

Vertical tail

Deburred the vertical tail parts. Discovered that 2 ribs were defect, flanges were bent offset the center by several mm. The main spar channel was also a bit off center. Very irritating, if the Sonex people had just looked at them - once - before packing them they would have seen it. Tried to put the skin on, and somehow it fits.