[cicopo]

NIFTY. Looks like something that needs a bit more experimentation but is worth the time.

[davecrash]

Originally Posted by byrocat

It came down to the Safety Code and one key item: will not fly an aircraft at a pubic event, or something similar to that.

http://www.maac.ca/docs/2011/the_maa...rev_jn2010.pdf
Actually, it's Article #1 I shall not operate a Model in competition or in the presence of spectators until it has been proven airworthy and/or safely operational by a previous successful test.

Probably sounded like a great idea at inception but no one applied the sanity check before sending the paperwork to MAAC.

Originally Posted by Dutkoski

Well, that's too bad in a way, I guess you could not get around that rule, unless, perhaps it was not open to the public, only participants and there was no fee. Then it would be sorta like just testing a lot of planes......with a lot of guests.....

Hi Bob, That is how the event was run last year. Only pilots were invited, One flight at a time with a spotter. No competiton or prizes. It was a great way for guys to have their planes checked out before flight by other pilots too.

[Dutkoski]

Well, not only does the new bungee work great, I installed the old motor from my doomed Styker hoping it would have enough power to get it back to me. Not only that, the darn thing flew really good, scooted right along and it was slightly windy to boot. It actually did all that was asked of it, rolls, loops, hovered, inverted and lands very slowly. Of course the motor was definitely working hard for its size. A slightly more powerful motor would certainly improve the performance.

The chaps at the field were so impressed that I got orders for 4 of these foamies and they didn't even ask for the price. So, I'll consider this first batch to be beta kits and see how it goes. I'll use the master plugs as vacuum molds for the tail cone, nacelles, turtledeck and canopy section. I might even make a hard mold for a nose cone.

Want to keep the costs down to around $90.00 to $100.00 retail.

[Dutkoski]

Worth the time, maybe, so far, I have orders for seven copies. SO, I did use the master molds or plugs of the canopy, turtle deck fairing, the two nacelle intakes and the tail cone ( which I might not use now, will make a substitute mold ) to make vacuformed parts. Doesn't look great but not too bad. Made a bunch of hot wire templates to cut the foam to shape so it'll be not only quicker to assemble but stronger airframe and more scale looking.

Oh, I tested a few cheap motors from Hobby King, didn't like the performance, so strapped on a Mega ACn 22/30/2 motor (I just had it on the shelf looking for a home), a 20C 5000 mah 3 cell battery and a 80 amp ESC. Using an ACP 9" - 4.5 electric prop. Well, what a difference, hovered around 630 watts of power at 58 amp on full throttle. Plus, the whole package is only 42 oz.....

Was going to go the field this morning to give it a toss, but woke up to grey skies and some rain, perhaps a bit later in the day.

If this works out, I'll have to start another thread in the electric power section being this is the ducted fan forum....oh boy, another kit, another manual to make....

[davecrash]

Are you going to bring any of these to Ottawa?

[Dutkoski]

Yep, I have 6 foamie kits in the box and I am fiberglassing like crazy to get 3 composite kits of the Arrow. I hope to have at least a Banshee II and a Mig-17 kit ready for sale as well.

Here is my next winter project, I figure a couple of really powerful 70 mm's should do the job, well, maybe not......the project is so old I had black hair back then....... It was going to be powered by a pair of Dynamax 5" fans and O.S. 91DF motors. But now, a good strong turbine will be the order of the day.

[DW_Crash]

Originally Posted by Dutkoski

Yep, I have 6 foamie kits in the box and I am fiberglassing like crazy to get 3 composite kits of the Arrow. I hope to have at least a Banshee II and a Mig-17 kit ready for sale as well.

Here is my next winter project, I figure a couple of really powerful 70 mm's should do the job, well, maybe not......the project is so old I had black hair back then....... It was going to be powered by a pair of Dynamax 5" fans and O.S. 91DF motors. But now, a good strong turbine will be the order of the day.

Hello Dutkoski,

I love what you have done in the larger Arrow. I have several turbine aching to get into an Arrow frame that size...Are you Kitting? how much? Will you ship to Edmonton? Is it single tailpipe or bifurcated?

Love your Arrow,
Dave

[Dutkoski]

It'll most likely be a big single with a bifurcated tail pipe. This will keep the cost down, the weight down and most important, the complexity down so even I could figure it out. With two engines, you duplicate virtually all of the equipment so weight is a big issue considering the design of the main landing gears.
Kitting it, well that goes without saying, gotta make a buck. How much is the million dollar question, no idea, I will have to have the two main landing gears and retracts custom made, no CNC for such a small production run so they will be hand made. I hope to be able to use some off the shelf retracts and just modify them to fit and they'll be electric. So it'll all depend on how much it'll cost to have custom item like that done.
I was told the working drawings were complied from actual Avro drawings supplied by Jim Floyd so they are about as accurate as you can get now a days.
When I start the project, again, I'll post it in the jet section.

Also, I'll ship to the moon if needed, Edmonton is not a problem.

[DW_Crash]

Originally Posted by Dutkoski

It'll most likely be a big single with a bifurcated tail pipe. This will keep the cost down, the weight down and most important, the complexity down so even I could figure it out. With two engines, you duplicate virtually all of the equipment so weight is a big issue considering the design of the main landing gears.
Kitting it, well that goes without saying, gotta make a buck. How much is the million dollar question, no idea, I will have to have the two main landing gears and retracts custom made, no CNC for such a small production run so they will be hand made. I hope to be able to use some off the shelf retracts and just modify them to fit and they'll be electric. So it'll all depend on how much it'll cost to have custom item like that done.
I was told the working drawings were complied from actual Avro drawings supplied by Jim Floyd so they are about as accurate as you can get now a days.
When I start the project, again, I'll post it in the jet section.

Also, I'll ship to the moon if needed, Edmonton is not a problem.

Dutkoski,

Keep in touch....I definitely want one of these Arrows for a Turbine.....I have 4 turbines looking for a home.

Dave

[Dutkoski]

Maiden the prototype #2 Sunday, The new bungee trolley worked fantastic, the Arrow launched beautifully, nice and smooth takeoff and a smooth no problem liftoff. On the first ass, it was a hands off level, no trim needed so the CG was right one the money. Ted did several passes and different speeds, a very nice roll that was pretty quick, reported the controls were very good as well. Slowed the model down and reported the controls were a little sluggish but still maintained good control but perhaps the CG could be moved slightly aft as he was on the elevator all the time now to keep it level but not much of an issued. I was a very happy designer......
Decided to setup for landing, started slowing down on the downwind leg just and just before turning crosswind, crap happened, the motor went silent. The model was descending and now with no thrust, was loosing speed. It was obvious the model was not making it back to the field so Ted kept it wings level and landed it in the corn field. Well, it was kinda muddy retrieving it.
As we got close, we could smell the electronic burn, the ESC had fried itself and stink it did. It was a Turnigy 100 AMP that has worked many times before, so why now, who knows. Ted felt quite upset over this but it certainly wasn't anything he did, after all, he saved the model from being totally destroyed.
The Arrow suffered some minor damage to the main fuse but the front nose section was a mess. Fortunately, I had a molded nose section in the garage at home. So, once home, I stripped the electronics out, washed the mud off the model and removed the crushed forward fuselage. I then fitted the new section and will have this Arrow back in the air this week. Now I will have to hunt for a Castle Creation Ice 100 or 110 ESC .....