Thompson Trophy Air Racing

as I am the present holder of the MS Schneider Trophy :grin: how about some another trophy for my collection? :wink:

Thompson Trophy

The race was one of the National Air Races of the heyday of early airplane racing in the 1930s. Established in 1929, the last race was held in 1961. The race was 10 miles (16 km) long with 50-foot-high (15 m) pylons marking the turns, and emphasized low altitude flying and maneuverability at high speeds. As the race was flown around a closed course, crowds in the grandstands could easily see much of the spectacle.

I came up with following course. this one is shorter. three rounds to fly, low level

again, cold start, taxi, take off.

first waypoint is the NLV tower. I almost missed it in my first lap. stay below the tower height!

second waypoint is Nellis tower. almost too high here

only then I noticed some strange noises. looked around the cockpit and realized my canopy is opened. I was surprised it was still at its place :smile:

third waypoint is Harry Reid westmost old tower. there are two old and two new, so pay attention, you have to fly between the two old towers.

(wondering why my tail wheel didnt retract)

finish again after landing and full stop on 26R (no need to fly between the towers on the approach). I needed some side slip here

you can see all 4 towers here, the two old towers between the two new

at 100+FPS it felt almost like in twice the speed comparing to XP11 :sloth:

from spawn : 14:20:00
to full stop : 14:40:50
distance : 81 NM (27x3 according to skyvector)
AVG SPEED : 233.28 KTS / 268.45 MPH / 432.03 KPH

this is thrown glove, very weak time indeed :slight_smile: :checkered_flag:

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I’m (very) late to the party … for reasons! But it’s happening tomorrow!

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looking forward to the stream.

in case of any outstanding question about the course feel free to ask. but I think this three-lap course is more straight forward than the Schneider Trophy one.

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OK, that was fun!

I did one of my usual tricks and turned the wrong way onto the runway for the first attempt, so I flew that as a bit of a warmup and a sighting lap and didn’t finish the course. Second time was the charm though. I ran the engine at takeoff power (obviously) of 61" and 3000 rpm for takeoff, then pulled power back to max continuous of 46" and 2700 rpm until temps were all in the green, then ran the engine at military power (61" and 3000 - same as takeoff) for the rest of the challenge as it just fit within the 15 minute limitation. Temps were high, but below redline throughout the race, and I saw 350 mph for most of the race on the airspeed indicator.

I completed the three laps in 20 minutes 27 second, for a result of (using Nevo’s calculated distance of 81 NM):

from spawn: 14:20:00
to full stop: 14:40:27
distance: 81 NM (as per Nevo’s calcs)
AVG SPEED: 237.65 KTS / 273.49 MPH / 440.13 KM/H

So not a lot in it from your first run, but I just shaded you by about 4 knots over the race. I could probably be a little more aggressive in my use of military power at the beginning of the race, and I could definitely get the landing roll a bit shorter (I bounced the landing and wasn’t as aggressive on the brakes as I could have been). But happy with that result!

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great result, congrats! :champagne:

dont be too shy with the power, iirc I pushed the throttle to the firewal at take off and pulled it back only before landing. the temp at LV in this mission is really low. it could get interesting with higher temp.

I missed the stream unfortunately. hope you will post the vid for our watching pleasure.

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And apologies to anyone who watched the stream- it looks like I had my monitor refresh rate set too high which led to some image tearing that was causing the image stabilisation on the streaming PC to become all jerky.

Sometimes trying to fix a problem only causes new problems!

I’ll see if I can salvage the footage, if not I’ll update the post with some screencaps :+1: