Because electric flaps can fail. That's the major point here. Standard procedure, as you say, would be to get them up to 20° after powering up. Cessna's flaps give the most lift for the least drag at around 20°, with increasing drag and not much more lift after that.
Because, although it isn't a normal procedure, my experience was that the airplane would still climb, albeit slowly, with 40 degrees. I agree that this might not be the case for heavy people, or at high DA. I don't remember rushing to get the flaps to half.
Were I to sink to mean spirited speculation, which I won't, I would say that the intent was to show off and land on the STOL runway, and when it became apparent that they couldn't make it, the decision was made to call it a "low approach" rather than a botched landing. But, I would never say something like that.
Yeah, with some lighter types it will climb a tad... I've done that with me and a college-age student on a summer afternoon (think 100F) here in Texas. Doesn't mean I'm recommending it to anyone else.
We were able to climb with 40° flaps. So if they were stuck, we could have climbed slowly away. The procedure for a go around is to retract the flaps, which is what was done. As we were climbing with 40° flaps, I'm sure the plane would continue to climb even if they weren't retracted.So your flaps weren't stuck at 40° like the accident aircraft, but it's the same exact thing.
There are multiple posts claiming in this thread that a C-150 couldn't climb at all with 40° flaps, and my responses have been to those posts. My experience has been that it can, in the circumstances I was exposed to.
I'm sorry, I still don't see your point. The plane climbed with 40° flaps for me, and also for me and an instructor. If motor had failed, it would continue to climb slowly. I'd have just climbed out and landed.
I've done it. I haven't done it at high density altitude as I mentioned earlier in the thread. Any plane will have climb issues with a sufficiently high density altitude. How many people have crashed in mountains? @Everskyward has climbed out in a C-150 with 40° flaps, too. Go arounds have been taught in C-150's for decades.
I think you read it backwards. Read the quoted post under my reply again, please note the order.
What did Guthmiller do that attracted Dan's attention?
Same. Its been quite a while now so I can't swear that we weren't limited to partial flaps for normal ops but I certainly don't recall that being the case. And we did more than our fair share of go arounds during my training, and flaps are the last thing that gets touched during that procedure and I don't ever recall the plane not climbing until we started pulling flaps in. Again its been years so I can't swear to it but I do not recall lumbering along with the plane not starting to climb until we got some of the flaps in.
Another Dan conspiracy claim. In this one a young couple went into the drink off the coast of California and were fished out by a Coast Guard S&R crew. Crazy Uncle Dan somehow theorizes that Guthmiller was involved in a conspiracy to intentionally crash the plane. Someone can correct me if I'm wrong, but I don't recall Dan putting out any follow up showing any evidence to support his claim.
That's right. Full throttle, carb heat off (which makes full power), flaps gradually up. The planes I flew mostly had the paddle switch, and didn't show the flap angle.
Agreed. Unless there was some follow up I missed, it seems Dan was just being another big mouth chasing likes & views.
I knew about that ditching, but I didn't know about Guthmiller's involvement.
Nope. But I have climbed a C-150 with a flight instructor with 40° of flaps. Like I said, I doubt I could do it in Denver during the summer, but it worked fine in New Jersey. The climb rate wasn't great. but it did climb. My experience is worth the same as anyone else's here.
What's your point? My experience is that I could, with a flight instructor also in the plane, climb with 40° flaps. It climbed long enough for a ham-fisted student to work things out with the flaps. I'm sorry my experience doesn't conform with your beliefs, but that's too bad.
I own a 150F and it really depends on how hot it is. I would not want to count on the airplane climbing over the trees at the end of the runway with 40 degree flaps in summer, but I am sure it would work in winter. I would rather take off 50 pounds over gross weight in winter than 200 pounds under gross in summer it seems to be that dramatic.
Who is he?
That may well be, but Dan is now on video saying he knew he couldn't land there and had no intention to. I guess that somehow saves face on the missed landing, but adds a whole bunch of factors to the crash. Far be it from me to tell a YouTube celebrity that he should learn when to shut up.
Sounds like the standard advice an attorney might give.