Search found 46 matches

by Dan OBrien
Sun Jan 21, 2024 1:24 am
Forum: Aircraft for Sale
Topic: Lancair ES for sale - Original Owner/Builder
Replies: 2
Views: 1577

Re: Lancair ES for sale - Original Owner/Builder

Sorry your selling Gordon, but someone's going to get a really nice airplane.

If you are willing to share, curious about the ways you've used of some of the 9 lives. Learning experiences for the rest of us?
by Dan OBrien
Mon Dec 04, 2023 3:33 am
Forum: Announcements
Topic: Sun 'n Fun
Replies: 7
Views: 3555

Re: Sun 'n Fun

I hoping to return to Sun-N-Fun this year, where I demo flew the ES and purchased my kit! Years and years ago, though it actually seems like yesterday. Will look for updates. Lots of ES guys used to go to Sun-N-Fun. Hope we can get lotsa Lancair folks down there.
by Dan OBrien
Fri Nov 17, 2023 4:12 am
Forum: ES/ES-P
Topic: Glide planning for Bahammas Trip
Replies: 16
Views: 3038

Re: Glide planning for Bahammas Trip

Interesting Dan. In my ES at 95 knots-ish, weight dependent I get 500 fpm. George, you're making me wanna go test glide other airspeeds!! Is 95 better? Could differ between planes, but: A velocity of 95 kts at a 500 fpm decent is a glide ratio of 19.2 = [(95 nm/hr) x (1hr / 60 min) / (6076 ft / nm)...
by Dan OBrien
Fri Nov 17, 2023 2:17 am
Forum: ES/ES-P
Topic: Glide planning for Bahammas Trip
Replies: 16
Views: 3038

Re: Glide planning for Bahammas Trip

One more and I'll give it a break. Your fine pitch glide ratio in the IV is 44% lower than your coarse pitch glide ratio. My fine pitch ratio in the ES is 38% lower than the coarse pitch ratio. It makes sense that the ES ratio would fall by less in percentage terms because we are already more draggy...
by Dan OBrien
Fri Nov 17, 2023 1:59 am
Forum: ES/ES-P
Topic: Glide planning for Bahammas Trip
Replies: 16
Views: 3038

Re: Glide planning for Bahammas Trip

BTW Bob, just for level-setting on glide and ratio at 120 kts and descent rate, for an 18:1 ratio I get 675 ft/min descent: 675 ft/min = (120 nm/hr airspeed) / (60 min/hr) x (6076 feet/nm ) / 18 (glide ratio) As it works out, my flight testing shows 691 ft/min descent at 100 kts. Close to the same d...
by Dan OBrien
Fri Nov 17, 2023 1:46 am
Forum: ES/ES-P
Topic: Glide planning for Bahammas Trip
Replies: 16
Views: 3038

Re: Glide planning for Bahammas Trip

Thanks Bob, I went back to my flight test logs and realized I did calculate in a glide the ratio for the prop set to fine pitch as well as coarse pitch. A more careful averaging of the data logs than we did from jotting down numbers in flight shows that at 100 kts, the ratio averaged 14.7:1 with pro...
by Dan OBrien
Sat Nov 11, 2023 6:44 am
Forum: Lancair Safety
Topic: LOBO, Free Speech and Safety
Replies: 9
Views: 1802

Re: LOBO, Free Speech and Safety

JC, are you guys-- three more of the most knowledgeable Lancair guys on the planet--banned from LancairTalk? Sean flew my ES and gave me GREAT feedback. It's hard to accept that you guys are banned, if true. Let's push this open forum! Yes, I and EPS have been repeatedly and now permanently banned....
by Dan OBrien
Sat Nov 11, 2023 5:33 am
Forum: ES/ES-P
Topic: Glide planning for Bahammas Trip
Replies: 16
Views: 3038

Re: Glide planning for Bahammas Trip

Interesting point about slowing to stop the windmilling. I wonder how close to stall one gets before it stops or if it stops before stall? My ES stalls gently when coordinated, so if I could get it to stop at or near stall, that might be a good strategy. Kinda makes me wonder about the glide ratio f...
by Dan OBrien
Sat Oct 21, 2023 6:31 am
Forum: ES/ES-P
Topic: ES wing incidence discussion
Replies: 2
Views: 1400

Re: ES wing incidence discussion

Here is an exchange about the incidence issue on the old ES Yahoo list, which was an incredible resource. (I've got almost all the emails, but the pics were mostly dropped.) This is just one small part of an extensive, open, highly informative discussion about the incidence issues. I wish the old ES...
by Dan OBrien
Sat Oct 21, 2023 5:40 am
Forum: ES/ES-P
Topic: ES wing incidence discussion
Replies: 2
Views: 1400

ES wing incidence discussion

A question was asked by Matt Candelaria on LancairTalk about whether right wing heaviness was common in ES's and whether he should consider lowing his right flap a bit more to get rid of it in his plane. I'll repost my answer here, as someone here is probably more knowledgeable than I am on this. He...