Showing posts with label video. Show all posts
Showing posts with label video. Show all posts

Wednesday, August 31, 2011

More Consistent Landings



This morning was beautiful with clear skies and nearly calm winds. I did five landings, the first four of which were good landings (according to Ed), though of course there were things that could have been a little better on each one. A couple of times I got down to 60 mph before I was over the runway. We like to have 65-70 coming over the trees because when the Citabria gets down to 60, you start to sink faster and if there's some wind shear, you are closer to a stall than you would like to be at 60 or 80 feet up. I used a slip on a couple of final approaches where I felt I was high and/or fast, noticing this myself before Ed said anything (except on the first landing where he said "we're pretty high" right after I turned final).

The fifth landing was good right down to the runway, but I didn't hold it off quite long enough and was late adding power, so it was a pretty hard landing with a slight bounce, but OK.

I've made a lot of progress in the last few flights with Ed. Takeoffs are good, though we refined those a bit this morning. When I work the tail up on the takeoff roll, I've been holding a level flight attitude. It's better to keep it slightly nose up (slightly tail down, video here) so when you reach flying speed (about 60 mph), it practically flies itself off without a distinct "rotate" back-stick motion (maybe slight back pressure). Less chance to get slow this way. Patterns are good, and I'm doing better holding the best climb sight picture (around 75 mph) and keeping the ball centered. I'm noticing problems sooner - keeping up with the airplane if not "ahead of the airplane" as Ed always urges me to always stay. All of this contributes to better landings - consistency avoids problems, and when problems occur, fixing them sooner (like line-up with the runway center line) means you can focus more on the landing itself.

One of my biggest problems still seems to be getting the stick ALL the way back as I touch down. I've got to get that under control so Ed never has to mention it again. 

Here's a video of Ed landing the Citabria this morning (HD, not hat cam VGA). Doesn't LOOK that hard, does it?

0.9 hours dual in Citabria (8/31/11, 3B3)

Friday, August 26, 2011

Ups and Downs on Landings

Still staying in the pattern at Sterling, trying to get my tail wheel landings under better control. On Tuesday Ed suggested I land on the paved runway rather than the grass, which I tend to prefer because the line-up isn’t quite so critical on the wide grass runway, giving me a chance to concentrate on other things (like getting the stick all the way back – at just the right time, of course). At first the runway seemed just a bit narrow (though it's 40 feet wide), and I added “poor line-up” to my usual woes (high and fast on final). Various combinations of these issues resulted in 3 go-arounds before I made a successful landing. And that one wasn’t the greatest. So much for Tuesday.

I reviewed my hat cam video and realized that my turn to base is not very consistent – so I usually end up high, or very rarely low, on final approach. I resolved to really try to make this better on the next flight, which was Friday morning. I told Ed about my theories and asked if he would fly one pattern as a demo, which he did (for some reason seeing a demo always helps me to do better). I don’t like to use ground landmarks in the pattern (since these only work for one runway), but Ed mentioned that he starts his turn just after a small pond that I had also noticed when flying runway 34. Fair enough, and that landmark helped me to be more consistent. I did four pretty decent landings, one go-around, and one bouncer (saved with power), unfortunately on the last one. I did slips without prompting on two of the landings (pilot in command!), which is good. Still seeking the elusive goal of "consistency," but I still felt pretty good about this session. I posted one hat cam landing video on Flickr.
Typical pattern for 34 at Sterling
Monday morning at 8 am is doubtful due to possible after-effects of Hurricane Irene (no damage at my house, and I hope the airport and Ed’s planes are OK). But I have a Wednesday morning flight booked, and weather is supposed to be good all week.

0.8 hours dual Citabria (3B3, 8/23/11)
1.2 hours dual Citabria (3B3, 8/26/11)

Friday, August 19, 2011

My Presidential Hat Cam

I decided to ban hand-held cameras from my tail wheel flight lessons this summer - too distracting when I need to focus on learning tricky new skills. But I was also thinking it would nice to have a hands-free way to record video of my flights so I could review them and maybe learn more quickly from my mistakes. I know there are various "action cams" available these days, but I figured they would be really expensive.

Then a couple of weeks ago Amazon had a daily deal on a tiny Kodak Zm1 VGA video camera for $30, so I ordered one, along with an 8 GB MicroSDHC memory card (4 hours of video). The Zm1 doesn't have a tripod mount, so I had to improvise with a small bolt, epoxy, a nut, and a couple of large washers. I drilled a hole in the brim of a baseball cap I rarely (never) wore (sorry Caroline), a Washington, DC souvenir with a large presidential seal on the front. Voila! The camera only weighs 2.6 ounces (maybe 4 ounces with the hardware), so it works pretty well on the brim of the hat. I have to be careful to position the hat so the camera points where I'm looking (and not mess it up when I put on my headset or move my head around the cockpit). The camera shoots upside down as mounted but I can fix that easily in the editing software.



Bottom line: based on one test flight, it works. Samples here and here (and above). The low res VGA video is not very pretty but is adequate for evaluating what went wrong with some of my recent landings. I can get enough of a look at the airspeed indicator and altimeter along with the front and occasional side views. The camera has no image stabilization, but the head motion and airplane vibrations are not a problem.

Unfortunately I saw a sample video that one of Ed's other students shot with a ContourHD mounted with a suction cup on the right door window. Really gorgeous full HD video, and the CountourHD costs less than I thought ($139). I'm sorely tempted but will try to resist and work with the hat cam for at least a few flights.