Search found 1238 matches

by rwtucker
Wed Jun 20, 2018 4:18 pm
Forum: DA40 Forum
Topic: Optimal landing speed
Replies: 62
Views: 6612

Re: Optimal landing speed

When I look back on the greasers that made me look like I knew what I was doing, virtually all of them were at near max weight or at night. Has anyone else seen this tendency in landing the DA40? Thinking about night landings in other aircraft, they have not been any more liklely to be good or bad t...
by rwtucker
Thu Jun 14, 2018 2:32 am
Forum: DA40 Forum
Topic: Loudspeaker 4 or 8 Ohm?
Replies: 16
Views: 350

Re: Loudspeaker 4 or 8 Ohm?

The ideal speaks for that application would have a mylar cone and be restricted to mid-range frequency response. Such speakers are common in ham radio and similar transceivers designed for outdoor use. The have a narrow frequency response that optimizes the voice range and suppresses higher and lowe...
by rwtucker
Wed Jun 13, 2018 8:56 pm
Forum: DA40 Forum
Topic: Loudspeaker 4 or 8 Ohm?
Replies: 16
Views: 350

Re: Loudspeaker 4 or 8 Ohm?

What is blowing out on these speakers? Is it the voice coil (zero ohms across terminals) or is it degraded cone material and/or suspension rim?
by rwtucker
Wed Jun 13, 2018 5:28 pm
Forum: DA40 Forum
Topic: Keeping CHT temps in range on climb-out
Replies: 20
Views: 1471

Re: Keeping CHT temps in range on climb-out

My temporary highs seem to be close to 410 F. when I lose track of them due to traffic, ATC, etc. I'm going to quit worrying about those as well. I'm also learning to slow down and enjoy the scenery flying LOP. CHTs are <300 and I'm around 130 kts. at less than 6 GPH. Not a bad ride.
by rwtucker
Tue Jun 12, 2018 3:44 pm
Forum: DA40 Forum
Topic: Keeping CHT temps in range on climb-out
Replies: 20
Views: 1471

Re: Keeping CHT temps in range on climb-out

Taking standard definitions for high performance and economy, they are saying it is destructive to your cylinders to operate at 434 degrees at 55-65% power but OK to operate at 434 degrees at 75-80% power. Does that make sense? Is there something about the mechanics of higher power that makes it saf...
by rwtucker
Mon Jun 11, 2018 3:09 pm
Forum: DA40 Forum
Topic: Keeping CHT temps in range on climb-out
Replies: 20
Views: 1471

Re: Keeping CHT temps in range on climb-out

Kurt -- All of this makes sense except the max temp guidance being higher for high power cruise than for low power cruise. As with EGT, lower power settings produce less pressure, uneven spot heat, etc.
by rwtucker
Sun Jun 10, 2018 11:28 pm
Forum: DA40 Forum
Topic: Keeping CHT temps in range on climb-out
Replies: 20
Views: 1471

Re: Keeping CHT temps in range on climb-out

My CHTs have been steadily creeping up over the years during climb out. I’m sure my 2000 hr baffling is getting a bit stiff with some air gaps. If I maintain best climb during summer (in Houston!), temps will climb to about 405-410 F. Used to be 380 F. about 1000 hrs ago. For what it’s worth, I hav...
by rwtucker
Thu Apr 26, 2018 1:50 am
Forum: DA40 Forum
Topic: High CHTs
Replies: 54
Views: 7250

Re: High CHTs

This is great news Bernie. I’m going to look closely at mine.
by rwtucker
Sat Apr 07, 2018 6:31 pm
Forum: Hangar Talk
Topic: Cirrus Jet reviewed...
Replies: 28
Views: 3582

Re: Cirrus Jet reviewed...

The Microsoft whiz kids skipped a few important beats getting the Eclipse to the market and past the second greatest recession in history. My points go to performance and features per dollar, whether purchase price or hourly. Spec for spec, the 500 is closer to the Honda and you can pick up a 500 wi...
by rwtucker
Thu Apr 05, 2018 9:03 pm
Forum: Hangar Talk
Topic: Cirrus Jet reviewed...
Replies: 28
Views: 3582

Re: Cirrus Jet reviewed...

Not to beat a dead horse (even one that will lead the charge for several hundred sales) but the Cirrus Vision is such an inferior aircraft when compared with the Eclipse 500. Sometimes I don't understand how the market makes its decisions . . but it does. I have 20+ hours in the 500 now: 375 kts., F...