Morris Twin Engine Trainer
12-14-2002, 03:45 AM
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Morris Twin Engine Trainer
Thought I would pass along a new, to me, twin 3d fun fly that I saw today at Morris Hobbies.
He has two 48" twins and video tapes of them in action for your review for .25 size engines that will do the single engine take off....I saw it!!
One is the Morris twin Trainer and the other the Pinwheel twin.
These are not arf's, but kits for approx $110.00.
You can see at http://morrishobbies.com/default.php?cPath=22_150
Just thought I would pass along...as I have some "Small" interest in twins.
Twinman
He has two 48" twins and video tapes of them in action for your review for .25 size engines that will do the single engine take off....I saw it!!
One is the Morris twin Trainer and the other the Pinwheel twin.
These are not arf's, but kits for approx $110.00.
You can see at http://morrishobbies.com/default.php?cPath=22_150
Just thought I would pass along...as I have some "Small" interest in twins.
Twinman
12-21-2002, 09:28 PM
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Morris Twin Engine Trainer
I'm building a Morris Hobbies Spinsation right now, and I'm looking heavily at the Twin Trainer. On Thursday, I ordered videos for both the Spinsation and the Twin Trainer. The woman at Morris said I can return the videos, and use the price of the videos as a credit towards one of their kits.
The Twin Trainer looks easy to build, and I'd probably use (2) OS .25 FX's.
Regards,
Robb
The Twin Trainer looks easy to build, and I'd probably use (2) OS .25 FX's.
Regards,
Robb
12-26-2002, 09:19 PM
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Engines are too close together!
I'm no expert at flying model twins, but I don't believe you'll get the same effect flying the Morris Twin Trainer appose to flying something more scale-like. In my opinion, the engines are too close together to be a twin. Of course, this is meant to be a trainer...
BTW, single-engine takeoffs are not recommend because the torque factor would be too great unless you can take-off with half-throttle and you have enough trim for opposite rudder. Vse would have to be maintained with a positive rate of climb. If coordinated flight is not maintained, airplanes will not fly to good either. Standing on the ground looking up an a model is the greatest disadvantage we all have in this hobby. Its bad enough learning from a real cock-pit of a real one.
You modelers flying twins have far more experience on this subject than I. This is only my opinion and 2 cents worth.
BTW, single-engine takeoffs are not recommend because the torque factor would be too great unless you can take-off with half-throttle and you have enough trim for opposite rudder. Vse would have to be maintained with a positive rate of climb. If coordinated flight is not maintained, airplanes will not fly to good either. Standing on the ground looking up an a model is the greatest disadvantage we all have in this hobby. Its bad enough learning from a real cock-pit of a real one.
You modelers flying twins have far more experience on this subject than I. This is only my opinion and 2 cents worth.
12-26-2002, 10:35 PM
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Twins
I would totally agree that single engine take off is not a good idea....Even though I have done it several times with gyros as detailed at rcwarbirds.com, with a conventional twin "Workhorse, converted ugly stick"
I would not have believed the single engine take off of the Morris plane if I had not seen it. Check the videos that they have.
You are correct, in my opinion, that the Morris plane and other fun fly type planes, have different flight characteristics than a heavy warbird. It does still give the feeling of twin flight and a fun fly with twins.
I also would never suggest anyone start twins with a heavy warbird. Been there done that, don't do that!!!
This is a very unique sight at the field and I will be the first to admit that part of flying twins, is the gee whiz factor at the field.....something the "single crowd" cannot fully understand.
I would not have believed the single engine take off of the Morris plane if I had not seen it. Check the videos that they have.
You are correct, in my opinion, that the Morris plane and other fun fly type planes, have different flight characteristics than a heavy warbird. It does still give the feeling of twin flight and a fun fly with twins.
I also would never suggest anyone start twins with a heavy warbird. Been there done that, don't do that!!!
This is a very unique sight at the field and I will be the first to admit that part of flying twins, is the gee whiz factor at the field.....something the "single crowd" cannot fully understand.
12-27-2002, 12:28 AM
#8
Single Engine Take-off
I have a Hobbico Twinstar with .25 FX engines. I've done a single engine take-off twice.
We have a 300 foot paved runway
The first time was with the left engine which went real well. A nice gradual throttle advance made for easy ground handling and a fairly smooth take off.
The second time was with the right engine and it was quite a challenge. There was definitely not enough rudder to compensate for the P-factor and the right engine working together. It was difficult to keep it straight down the runway. About halfway down on my second attempt it started veering off the runway so I pulled up. After take-off it was flopping around like a fish for the first few seconds and on the verge of a stall. At that point I was ready to turn around and go get a trash bag. Fortunately it gained enough air speed smoothed out and made it around for a landing.
I'd definitely try the left engine take-off again but would have to think twice about the right unless I had a little more room.
Twins are awesome!
We have a 300 foot paved runway
The first time was with the left engine which went real well. A nice gradual throttle advance made for easy ground handling and a fairly smooth take off.
The second time was with the right engine and it was quite a challenge. There was definitely not enough rudder to compensate for the P-factor and the right engine working together. It was difficult to keep it straight down the runway. About halfway down on my second attempt it started veering off the runway so I pulled up. After take-off it was flopping around like a fish for the first few seconds and on the verge of a stall. At that point I was ready to turn around and go get a trash bag. Fortunately it gained enough air speed smoothed out and made it around for a landing.
I'd definitely try the left engine take-off again but would have to think twice about the right unless I had a little more room.
Twins are awesome!
