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More stalls and other fun stuff

More stalls and other fun stuff

2 posts in one day, a new record! This one I have been looking forward to. The first topic is fuel consumption and cruise speed. This video with the new tail view shows some of the testing then some take-offs and landings on hard surfaces with cross winds.

Yesterday I tested fuel consumption at what I consider the maximum cruise rpm of 5,800. I topped off the tank and after take-off set the power to 5,800 and flew for 30 minutes plus 2 more for taxiing. Results surprised me: 110 IAC and 115 mph TAS at 4,000 ft and only 4.8 GPH consumption. Nice. I won’t have to modify the posted cruise of 120mph as I am sure this is attainable with a cruise prop. Looks like I will make it to Oshkosh faster than I thought!

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Later I flew to a couple local airports and you can see take-offs and landings from a hard surface. Cross winds all day. I forgot to turn off the tail camera and recorded several spectators admiring the Merlin and making some nice comments, and trying to figure out how the parachute egressed. Interesting but not enough to post.


Taken from my ‘spy-cam’.

Today I loaded 26 lbs of bottled water into the baggage compartment which is slightly above the 25 lb limit. This moved the CG back to 29%. I will have to eat a lot of pizza to move the CG farther back. Will start tonight…..

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I climbed to 5,000 feet and tried several stalls: clean plus 20 & 40 degrees’ flaps. All at idle power. No real stall developed even with the stick back to the stop. You can see me raise my left hand in the video indicating the stick is to the rear stop. Here’s the video link:

The nose would drop some. The wings were easy to keep level with a little rudder touch. Indicated ASI was low 30s with flaps and low 40s clean. As expected. All good, all easy and comfortable. No surprises. No worries.


Chip W. Erwin
South Lakeland Airport
Lakeland, FL

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