Originally Posted by zmonster97

The new dle-60 TWIN!. For the people like me who probably can't afford the da-70 twin.
http://www.troybuiltmodels.com/items...WINENGINE.html

And it is king 50 legal!

If I ever get a 50cc, this will be the engine I will put in it.

I love my DA-60 but this could be fun.

Originally Posted by Ohio AV8TOR

Too bad, I was hoping to drive up and fly it.

Fixed it for ya.

Originally Posted by zmonster97

Fixed it for ya.

Indeed

Originally Posted by AZAerobat

Trying to settle a question on another thread. When the plane pulls to the landing gear in KE flight it is nose heavy correct? This gentleman is saying it would be tail heavy.

It would be tail heavy if it's pulling towards the gear.

Woops a little late, Joe explained it better.

That's why I like these threads. I learn something new everyday. Some things I learn are not related to rc flight but still.

Just had a full double rainbow out front of my house. I don't have enough gas money to go find the pot of gold

Originally Posted by joesmith285

Most 3dhs planes are designed to have little to no KE coupling at a certain CG. You can adjust CG to get perfect KE and this will also be the prefered CG that the designer chooses. Some really poorly designed airframes will have KE coupling regardless of the CG.

If the plane is tucking towards the gear, it is tail heavy.
If the plane is tucking towards the canopy, it is nose heavy.


This all has to do with elev. trim. For example, a tail heavy plane will want to climb, so you trim in a few clicks of down elevator. Then when you roll to KE, the down trim in the elevator causes the plane to tuck towards the landing gear.


Always try to fix KE coupling with CG. If it gets to the point where CG isn't going to fix the coupling, or if you don't like the way the plane flys at the "preferred" CG then just find the CG you like and use the radio to mix out the coupling.

Originally Posted by cmala

If the plane is nose heavy and you trim it for level flight you will need to trim in up elevator to keep the nose from dropping. Now when you roll inverted you have the weight of the nose pulling it down and also up elevator pulling it down so it dives while inverted.

Roll knife edge, you are counteracting the heavy nose with rudder so that goes away but the plane is still trimmed with up elevator so it will pull to the canopy.

This is of course ignoring anything in the design or build that might have an effect.

I stand (or in this case sit) corrected!! Thank you.

SteveT

Originally Posted by joesmith285

Most 3dhs planes are designed to have little to no KE coupling at a certain CG. You can adjust CG to get perfect KE and this will also be the prefered CG that the designer chooses. Some really poorly designed airframes will have KE coupling regardless of the CG.

If the plane is tucking towards the gear, it is tail heavy.
If the plane is tucking towards the canopy, it is nose heavy.


This all has to do with elev. trim. For example, a tail heavy plane will want to climb, so you trim in a few clicks of down elevator. Then when you roll to KE, the down trim in the elevator causes the plane to tuck towards the landing gear.


Always try to fix KE coupling with CG. If it gets to the point where CG isn't going to fix the coupling, or if you don't like the way the plane flys at the "preferred" CG then just find the CG you like and use the radio to mix out the coupling.

Originally Posted by cmala

If the plane is nose heavy and you trim it for level flight you will need to trim in up elevator to keep the nose from dropping. Now when you roll inverted you have the weight of the nose pulling it down and also up elevator pulling it down so it dives while inverted.

Roll knife edge, you are counteracting the heavy nose with rudder so that goes away but the plane is still trimmed with up elevator so it will pull to the canopy.

This is of course ignoring anything in the design or build that might have an effect.

Thanks a lot for the help guys. I had it backwards as well. I thought To the landing gear was nose heavy. Joe your explanation clears it up thank you.

Originally Posted by diggity2424

You finally get that 57 extra yet?

Yes sir. Got it built tonight, but I have to get some ball links. I have no bolts that fit through the ones I have, and I'm not using the supplied setscrew links. Those things scare me for some reason.

Third flight of the evening. Even flew my questionable #1 pack first, but cut the timer down to 3 min. Did fine.

This was right at sunset, but chose to fly with my back to it this time.

Some lazy flyin cause I just wanted to get out and relax with the 71. Tomorrow is 2nd Surgery day for my dad. Just want to get it over with.... Up at 5 AM and have to be there by 8 AM, takes an hour to get there... Of course my new/used mCP X is coming in tomorrow. I could have had a serious time passing diversion if I had that in time.

3DHS 71 Slick Sunset Flight (4 min 39 sec)

Originally Posted by aronph

I heard it was designed specifically to fit in that cowl

but about da 70, i heard its like 1-2mm too wide lol... (not that im going to get any of them...30cc is bigest for me until i move or get a car lol)

Originally Posted by SteveT.

Man I wish!! I love those kinds of summer temps.....but I don't like the cold weather that usually goes with it during the winter.... I wish I could find someplace where it was 68 to 72 degrees year round with 5-10MPH breezes....that would be heaven to me

SteveT

Funny that is my buddy's plan when he retires ... chase 70 degrees, sounds like a good idea.

I know of one place that is like that year round. Houses dont have heaters or AC's. Baugio City, Phillipines ---> Camp John Hay, summer residence of the US Ambassador to the Phillipines. They also have a Jack Nicklaus designed golf course. (I know that's your favorite sport )

Weather here on the ship has been 40 degrees, water temp 42 degrees. Too durn cold for me.

I wish I could find someplace where it was 68 to 72 degrees year round with 5-10MPH breezes....that would be heaven to me

SteveT[/QUOTE]

San Diego

Roatan What is the weather like?

The climate is warm, usually in the '80s. The dress for the entire island is very casual. Comfortable cool clothing, shorts, and lightweight pants are recommended. Even in the evening at better restaurants, the dress remains casual. There are mosquitoes and sand flies, but, if you use repellant, you should not be bothered. Hurricanes are few and far between, and Honduras is generally not in the path of large storms. Roatan enjoys tradewinds the majority of the year, which make the climate even more comfortable.

Hey Dave how you been. I was just commenting in another thread about the 55 SHP. Love it although I don't fly it often. It is a classic after all.

Can someone please recommend me a good weller soldering station (and solder and flux). Amazon is having a "sale" on soldering equipment for anyone interested. Thanks.