Boomerang Nano!!!
#1476
Join Date: Jun 2007
Location: Lanark, UNITED KINGDOM
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RE: Boomerang Nano!!!
I can honestly say that I enjoyed building the Nano. It was very straight forward and yes there was some sanding necessary but very minimal.
The VT80 is a tight fit and I had to cut the engine mount a bit. But it wasn't hard to do.
I also had to cut out two balsa spares inside the canopy otherwise the canopy wouldn't fit. The tank is too high.
It's a Dubro 60oz tank.
Btw, all the mess is hidden under the plywood. There are tons of cables but with so many servos and electric retracts understandable.
Well, this weekend the weather forecast looks good. So no more excuses. But I am sure it will be Ok.
Happy flying
Ulrich
The VT80 is a tight fit and I had to cut the engine mount a bit. But it wasn't hard to do.
I also had to cut out two balsa spares inside the canopy otherwise the canopy wouldn't fit. The tank is too high.
It's a Dubro 60oz tank.
Btw, all the mess is hidden under the plywood. There are tons of cables but with so many servos and electric retracts understandable.
Well, this weekend the weather forecast looks good. So no more excuses. But I am sure it will be Ok.
Happy flying
Ulrich
#1478
My Feedback: (3)
RE: Boomerang Nano!!!
ORIGINAL: uixkes
Hi all,
just would like to post some pictures of my Nano ready for its maiden flight.
Turbine: JetsMunt VT80
Lado electric retracts with Jet-A1 legs
Weight: 6.3kg (dry)
Wish me luck for the maiden
Ulrich
Hi all,
just would like to post some pictures of my Nano ready for its maiden flight.
Turbine: JetsMunt VT80
Lado electric retracts with Jet-A1 legs
Weight: 6.3kg (dry)
Wish me luck for the maiden
Ulrich
Presume you are using Lado's 333 retracts correct? which wheels and brakes are you using on the Jet A1 legs?
Hope you have a safe and enjoyable maiden
Thanks,
Regards,
#1479
Join Date: Jun 2006
Location: Ona,
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RE: Boomerang Nano!!!
The little jet fly's awesome with a VT80. I also use one in mine. I would set the CG at first at least on the center of the wing tube for first few flights, from there you can start working it back.
#1480
Join Date: Jun 2007
Location: Lanark, UNITED KINGDOM
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RE: Boomerang Nano!!!
Yes, I fitted Lado's 333 retracts as they are rated up to 10kg model weight.
On the main legs I fitted 63mm alloy wheels and in the front a 52mm plastic wheel. According to Jet-A1 the legs can take up to 12kg, so I am well in the limit.
I am not using brakes as I am flying from grass and I have no problems with it when flying my Tornado V3.
Ulrich
On the main legs I fitted 63mm alloy wheels and in the front a 52mm plastic wheel. According to Jet-A1 the legs can take up to 12kg, so I am well in the limit.
I am not using brakes as I am flying from grass and I have no problems with it when flying my Tornado V3.
Ulrich
#1482
Join Date: Jun 2007
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RE: Boomerang Nano!!!
Well, that's the maiden done. What a nice plane to fly, two clicks up elevator was all it needed.
I only thought it would be faster than it actually was. Don't get me wrong, it looks and flys great, vertical performance is amazing.
Only the top speed I expected it to be faster. Is it because it is quite a draggy airframe?
I am also a little bit disappointed with the flight duration.
I was quite lucky. I realised that after the first flight that the tank was empty (I mean really empty, main tank and UAT empty, air already in the fuel tube). So I actually landed on the last drop of fuel and all I did was a short taxi and 7 minutes of flying mostly 3/4 to full throttle.
Anyway, I really enjoyed my first couple of flights with the Nano. What I really like is how easy it is to transport and to assemble at the field. The VT80 starts and runs without any problems, so this combination is definitely a keeper.
Happy flying
Ulrich
I only thought it would be faster than it actually was. Don't get me wrong, it looks and flys great, vertical performance is amazing.
Only the top speed I expected it to be faster. Is it because it is quite a draggy airframe?
I am also a little bit disappointed with the flight duration.
I was quite lucky. I realised that after the first flight that the tank was empty (I mean really empty, main tank and UAT empty, air already in the fuel tube). So I actually landed on the last drop of fuel and all I did was a short taxi and 7 minutes of flying mostly 3/4 to full throttle.
Anyway, I really enjoyed my first couple of flights with the Nano. What I really like is how easy it is to transport and to assemble at the field. The VT80 starts and runs without any problems, so this combination is definitely a keeper.
Happy flying
Ulrich
#1483
Join Date: Jun 2007
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RE: Boomerang Nano!!!
just back from another great afternoon of flying. The weather was great, steady wind along the runway and sunshine (yes sunshine in Scotland!)
I had another couple of flights and I am absolutely loving this plane. It's so much fun and you can't beat that turbine sound
I only had to stop because the turbine wouldn't start. When trying to start the burner temp would not rise and I got 'ignition failure' showing on the display. I hope it's not something serious.
I read somewhere that you can get that when the battery is low. But I checked and the meter showed me 66% full.
Well, I will charge the battery and try again. Maybe some you guys have an explanation.
Cheers
Ulrich
I had another couple of flights and I am absolutely loving this plane. It's so much fun and you can't beat that turbine sound
I only had to stop because the turbine wouldn't start. When trying to start the burner temp would not rise and I got 'ignition failure' showing on the display. I hope it's not something serious.
I read somewhere that you can get that when the battery is low. But I checked and the meter showed me 66% full.
Well, I will charge the battery and try again. Maybe some you guys have an explanation.
Cheers
Ulrich
#1485
My Feedback: (55)
RE: Boomerang Nano!!!
Ok, an update on my Nano progress:
I've got the airframe totally finished. As I posted earlier, I had trouble with the depth of the main gear well 'cups'. They were too shallow to allow for a full up-and-locked condition of the Dreamworks Nano gear. I did contact Trish, and was told the Sprint gear well cups would not fit a Nano. What I ended up doing was cutting the cup bottom off, then used strong duct tape and aluminum tape to increase the depth of the cup another 1/4". The internal depth of the wing is sufficient to accept this. There really is no reason the gear well inserts cannot be manufactured with another 1/4 inch in depth. Then, I would imagine any type of retracts/struts/tires would fit with minimal hassle.
So, now all (ha ha) I have left is the install of all of the innards... This is always a 'head scratcher" for me, as I try to anticipate where to locate things, like batteries and the UAT, for CG purposes. In the past with other jets I've finished the entire install, only to discover I need to move things around to get the CG right. Like most, I really don't like to add dead weight.
Any suggestions in this regard will be appreciated!
Sluggo
I've got the airframe totally finished. As I posted earlier, I had trouble with the depth of the main gear well 'cups'. They were too shallow to allow for a full up-and-locked condition of the Dreamworks Nano gear. I did contact Trish, and was told the Sprint gear well cups would not fit a Nano. What I ended up doing was cutting the cup bottom off, then used strong duct tape and aluminum tape to increase the depth of the cup another 1/4". The internal depth of the wing is sufficient to accept this. There really is no reason the gear well inserts cannot be manufactured with another 1/4 inch in depth. Then, I would imagine any type of retracts/struts/tires would fit with minimal hassle.
So, now all (ha ha) I have left is the install of all of the innards... This is always a 'head scratcher" for me, as I try to anticipate where to locate things, like batteries and the UAT, for CG purposes. In the past with other jets I've finished the entire install, only to discover I need to move things around to get the CG right. Like most, I really don't like to add dead weight.
Any suggestions in this regard will be appreciated!
Sluggo
#1486
Join Date: Feb 2006
Location: Cedar Hills,
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RE: Boomerang Nano!!!
I built mine a few weeks ago and I had read I needed to put everything as far forward as I could, still I put stuff forward but I also made good use of the space. (ie UAT in the middle, brakes and fuel pump are forward, receiver is at the rear) It balanced perfectly going that route and I had plenty of room to move my batteries around to adjust the CG. I'm using a K-60g and I think that's what you're using too so it should work out for you.
I'm hoping to maiden mine this weekend assuming I can make it out.....being out of town for work each week leaves little time on the weekends, but I'm working from home next week so if not this weekend, one of these mornings.
I'm hoping to maiden mine this weekend assuming I can make it out.....being out of town for work each week leaves little time on the weekends, but I'm working from home next week so if not this weekend, one of these mornings.
#1487
My Feedback: (55)
RE: Boomerang Nano!!!
Yes, you are correct, I am using a K-60G.
Thanks for the info. My concern is that I can't use the area up front for batteries. I had to cut a rectangle there so that the nose gear would fully retract. (I tell you, the Dreamworks gear is a "drop-in fit" only when it comes to fitting the wood mount. Otherwise, nothing else has been a "drop-in fit." The landing gear installation has been one royal time-consuming PITA!) So, the nose tire pokes up through the deck up there about 1/2 inch.
I know the UAT weight can be used to help with CG. I was hoping to put it in front of the fuel tank, but it sounds like I'll have to move it forward like you've done.
Thanks for the help!
Thanks for the info. My concern is that I can't use the area up front for batteries. I had to cut a rectangle there so that the nose gear would fully retract. (I tell you, the Dreamworks gear is a "drop-in fit" only when it comes to fitting the wood mount. Otherwise, nothing else has been a "drop-in fit." The landing gear installation has been one royal time-consuming PITA!) So, the nose tire pokes up through the deck up there about 1/2 inch.
I know the UAT weight can be used to help with CG. I was hoping to put it in front of the fuel tank, but it sounds like I'll have to move it forward like you've done.
Thanks for the help!
#1489
My Feedback: (55)
RE: Boomerang Nano!!!
Hmmm...that's a thought.
The one thing I did want to do - that I wish had been done with my Intro - was to make the gear well "cups" removeable so that I had good access to the wing center section interior, if it was needed at some point in the future. So along that line, I did not epoxy these cups in place. Rather, I used some button-head screws to hold them in place.
Interior center section access would be my reservation with lining the gear wells with ply. But, this may not be that big of a deal, in which case the ply would be pretty nice!
Sluggo
The one thing I did want to do - that I wish had been done with my Intro - was to make the gear well "cups" removeable so that I had good access to the wing center section interior, if it was needed at some point in the future. So along that line, I did not epoxy these cups in place. Rather, I used some button-head screws to hold them in place.
Interior center section access would be my reservation with lining the gear wells with ply. But, this may not be that big of a deal, in which case the ply would be pretty nice!
Sluggo
#1490
Join Date: Feb 2006
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RE: Boomerang Nano!!!
I went with Tam's electric retracts and they were a real drop in fit. No problems with the wheel wells. (other than the paint flaking off) The nose gear also fits perfect. To be honest I was expecting at least as much work as the Dreamworks gear but it all just bolted in and worked from the get go. Tim gave me a call when he was putting them together and gave me the option of pull pull steering or the push rod. I went with the pull pull and it went in super easy and works fantastic.
I fly off smooth salt and a paved runway so I know they will hold up.
I'm sorry to hear about all your trouble, but I'm sure you get it all sorted.
I fly off smooth salt and a paved runway so I know they will hold up.
I'm sorry to hear about all your trouble, but I'm sure you get it all sorted.
#1491
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Join Date: Dec 2011
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RE: Boomerang Nano!!!
Sluggo & All,
One thing you might want to check is the integrity of the 3 x 50mm bolts used for the control horns. The instructions have you to apply thin CA to the bolts and nuts before final tightening. I recommend that you apply CA to harden the balsa wood of the flight surface after drilling the hole for the bolt. I discovered that one of the rudder control horns worked the hole into an egg-shape resulting in a loss of trim- ie, the horn was free to wobble. To rectify this I removed the bolt control horn and filled the hole with Hysol to strengthen the wood and lock the bolt in place.This occurred on one rudder and the other flight surfaces were secure. Note that I'm on my 3rd season of flying the Nano and just logged several more flights at Capitol Jets this past weekend. Just something to ckeck during your build and preflight.
Art ARRO
One thing you might want to check is the integrity of the 3 x 50mm bolts used for the control horns. The instructions have you to apply thin CA to the bolts and nuts before final tightening. I recommend that you apply CA to harden the balsa wood of the flight surface after drilling the hole for the bolt. I discovered that one of the rudder control horns worked the hole into an egg-shape resulting in a loss of trim- ie, the horn was free to wobble. To rectify this I removed the bolt control horn and filled the hole with Hysol to strengthen the wood and lock the bolt in place.This occurred on one rudder and the other flight surfaces were secure. Note that I'm on my 3rd season of flying the Nano and just logged several more flights at Capitol Jets this past weekend. Just something to ckeck during your build and preflight.
Art ARRO
#1492
My Feedback: (55)
RE: Boomerang Nano!!!
Thanks for the heads-up on this Art.
As far as the install progress...man, this is a bit of a challenge to figure out how to get all of this stuff to fit. Not much progress at all today, just a lot of placing things here an there to see where they will fit.
Sluggo
As far as the install progress...man, this is a bit of a challenge to figure out how to get all of this stuff to fit. Not much progress at all today, just a lot of placing things here an there to see where they will fit.
Sluggo
#1493
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RE: Boomerang Nano!!!
I got rained out of my maiden flight today.... So I'll try again tomorrow...assuming the weather cooperates. Just to make sure, 10.75 from the trailing edge for CG that specified in the manual, is that what everyone is flying at? Mine balanced perfectly there with my 4200mh Life up front. I got my GOPro 2 all charged up so I should be able to get video.
#1494
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RE: Boomerang Nano!!!
Swps, don't worry. It will be ok. If you have her balanced according the manual she flies beautifully.
I actually started to remove a little bit of weight from the front already.
Good luck with your maiden. I am 100% sure you will enjoy it.
Ulrich
I actually started to remove a little bit of weight from the front already.
Good luck with your maiden. I am 100% sure you will enjoy it.
Ulrich
#1496
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RE: Boomerang Nano!!!
Bob,
The distance between the main gear retract flange and the wheel axle is4 1/8" or 105 mm. For the nose gear, this distance is 6 1/8" or 155 mm. Note that Icrafted "packer blocks"to raise/lower the nose gear mount by 1" or 25 mm to enclose the Spring Air retract unit within the fuselage. The "blocks" were made from 3/8 x 1/2" hardwood motor mount stock glued together and epoxied to the ply plate in the nose gear area.
Sluggo,
Take a break from the Nano equipment layout to view a video on Post# 36 of the Sea Vixen threadand experience carrier ops in the Royal Navy. Quite interesting.
Art ARRO
The distance between the main gear retract flange and the wheel axle is4 1/8" or 105 mm. For the nose gear, this distance is 6 1/8" or 155 mm. Note that Icrafted "packer blocks"to raise/lower the nose gear mount by 1" or 25 mm to enclose the Spring Air retract unit within the fuselage. The "blocks" were made from 3/8 x 1/2" hardwood motor mount stock glued together and epoxied to the ply plate in the nose gear area.
Sluggo,
Take a break from the Nano equipment layout to view a video on Post# 36 of the Sea Vixen threadand experience carrier ops in the Royal Navy. Quite interesting.
Art ARRO
#1498
My Feedback: (55)
RE: Boomerang Nano!!!
Hey Art, I'll check the Sea Vixen video.
The Nano is almost finished. I need the run the K60G on the stand to make sure the starts are good. Then, I have the finishing details to do, things like control throws/rates, trimming off excess length on those control horn screws, final CG check, etc. The maiden shouldn't be too far off.
Sluggo
The Nano is almost finished. I need the run the K60G on the stand to make sure the starts are good. Then, I have the finishing details to do, things like control throws/rates, trimming off excess length on those control horn screws, final CG check, etc. The maiden shouldn't be too far off.
Sluggo
#1499
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RE: Boomerang Nano!!!
No maiden yesterday. I've been having flameout issues with my K-60 due to my altitude (4800 ft). I think I got them resolved (needed to slow down the acceleration) and I'm going to try again today.