So I caved in and bought this plane. Carenado should pay a commission to Jankees, his excellent paints helped seal the deal.
I also downloaded a bunch of Pilot Operating Handbooks and other materials and attempted a preliminary flight assessment. Here are my findings, for any who are interested.
Carenado identifies this plane as a D17S variant. I limited my references to those for the D17S, G17S (D17S built postwar), UC-43 (no letter suffix) and GB-2, all of which used the R-985-AN-1 engine. The weights and performance figures quoted by Carenado in its marketing are a decent match for this plane. They quote a ceiling of 25000' I more often see 20000', but that won't matter to most of us.
The fuel tanks in the Carenado are of the correct capacity (4x23 USG in the wings and 29 USG fuselage). It is hard to know if they are in the correct locations, weight-and-balance-wise, because of the encrypted files.
The weight and balance screen gives a CG forward limit of 20% MAC and aft limit of 75% MAC, with an empty CG of 30.35% MAC. All of these numbers are nonsense. The correct limits, per the G17S type certificate, are 4.9% to 23.4% MAC at gross weight. In flight, the CG seems about right, though, so probably this is just Carenado being sloppy in filling the values for the loadout screen, which don't really affect the flight model. So no harm, no foul.
I flew the model at the weights, altitudes and power setting specified in the Flight Operation Instruct Chart in publication AN 01-90CC-1, Pilot's Flight Operating Instructions for Army Model UC-43, Navy Model GB-2 and British Model Traveller Airplanes, 7/10/44. Generally, the aircraft is moderately too fast. ranging between 10 and 25 mph faster than the reference says. For max continuous cruise, here is a comparison at different altitudes:
Sea level (35" 2200 rpm): Reference 197, Carenado 207 (all speeds mph IAS)
3000' (34" 2200 rpm): Reference 194, Carenado 210
6000' (full throttle, 2200 rpm): Reference 186, Carenado 210
9000' (full throttle, 2200 rpm); Reference 176, Carenado 185
12000' (full throttle, 2200 rpm); Reference 164, Carenado 190
15000' (full throttle, 2200 rpm); Reference 155, Carenado 177
The next fastest cruise setting (2000 rpm) gives:
Sea level (28" 2000 rpm): Reference 164, Carenado 172
3000' (27.5" 2000 rpm): Reference 165, Carenado 180
6000' (27" 2000 rpm): Reference 165, Carenado 172
9000' (27" 2000 rpm); Reference 165, Carenado 180
12000' (24.5" 2000 rpm); Reference 156, Carenado 155
15000' (22" 2000 rpm): Reference 146, Carenado 135
Best performance fidelity is at high altitudes at modest power settings.
At times when I was testing, especially when I changed power settings and was waiting for the speed to stabilize, there was a strange jolt in the airplane, the speed suddenly shifted up or down by 10 mph or so, and then stayed there. It seemed to me as if a correction or step in Carenado's performance tables was kicking in in a sudden and digital way.
The R-985 in Carenado's Staggerwing can still achieve 34" manifold pressure at 12,000 feet and 30" at 15,000 feet, which doesn't seem right to me. Based on performance charts I have seen for this engine, I would limit m.p. to about 26" at 12,000 and 24" at 15,000 for more realistic performance.
Fuel consumption also runs slightly higher in the Carenado than in the published figures, but it is hard to be precise about this since it depends on how much you lean the mixture. Carenado fuel consumption was drastically higher at max cruise at the higher altitudes (for example, 40 gph for Carenado versus 25 in the published data for max cruise at 15000'), where I obeyed the table and set the throttle wide open, probably achieving impossible power settings. Overall I give the engine aspects of the flight model an A-minus, as the actual speeds and fuel consumption usually are within 10% of published values.
Handling is more subjective but generally seems all right to me. On takeoff, the tailwheel lock helps a lot with directional control. Without it, lateral swing seems excessive as usual for MSFS taildraggers. On landing, it is difficult not to bounce, especially with a wheel landing, which is commonly used by real Staggerwings. The Alabeo Staggerwing in P3D is much easier to plant on landing and I tend to think the bouncing also is a feature of the generally skittish runway behavior of light taildraggers in MSFS.
Overall not a bad plane, certainly better than the last few "in cooperation with" Asobo/MS releases.
August