RE: DeHavilland Mosquito  
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RE: DeHavilland Mosquito - 8/2/2008 3:26:05 PM   
Tommy_Gun



Posts: 720
Joined: 4/7/2004
From: Ione, CA, USA
Status: offline 		For those of you that haven't seen videos of my ASM P-61 with the YS 63's here is a sample of why I prefer these engines.
From a normal R C pilots position, http://www.youtube.com/watch?v=B5aAZB8ud6c
From inside the plane, http://www.youtube.com/watch?v=RhiafB4K-ZM

Never mind looking at the video, just "listen" to the sound they put out!
And the power levels are more than acceptable.
Add to that, with more than 100 flights on this plane I have not had a single flame out from engine problems.
And I am not running any on board glow nor are my throttle servos on separate channels. I used a Y harness on them and mechanically matched the throttle linkages.
Yes I have run them out of fuel and had to dead stick the plane in, but it was a non issue.
Not tellin' anyone what to do, I'm just sayin

_____________________________

Yeeeeahhh seee.
Say hello to my leetle fren.

(in reply to FlyFanatic)
       Post #: 651

RE: DeHavilland Mosquito - 8/9/2008 9:02:10 PM   
brushlessmaxx


 

Posts: 1
Joined: 7/3/2008
From: Kirkland Lake, ON, CANADA
Status: offline 		hi to everyone... shortly... i got a project plane from a buddy thats almost built upp now... its the mosquito with 73 inch span... it was never flewn but instead flipped over on first try and after that was sitting in basement untill i took it off my friends hands lol... it had few cracks that are all reinforced but i have issues finding a canopy for it.. also the nose cone ... anyone know where to buy these? the nose cone i can always make myself if thats the case but i really would like the see through canopy... any help would be much apreciated
Pete
ps its my first plane and i know its prob not best beginner plane but it has to do lol

(in reply to Tommy_Gun)
       Post #: 652

RE: DeHavilland Mosquito - 8/10/2008 3:57:26 AM   
FlyFanatic



Posts: 89
Joined: 3/29/2005
From: Minneapolis, MN, USA
Status: offline 		Post your question in this thread:
http://www.rcuniverse.com/forum/m_5747198/anchors_7816722/mpage_18/key_/anchor/tm.htm#7816722
It is your best chance of finding the canopy, if it's the CMP Mosquito.
John from Nitromodels is very helpful with parts.

(in reply to brushlessmaxx)
       Post #: 653

RE: DeHavilland Mosquito - 8/13/2008 9:53:24 PM   
Montague



Posts: 4653
Joined: 4/19/2002
From: Laurel, MD,
Status: offline 		If it's the CMP Mossie, and it's your first plane, don't bother with the canopy and nose. The plane isn't going to last long enough for it to matter anyway, so why waste the effort.

Seriously, from your nick, I'd guess you're a car guy. But flying a plane is not at all the same as driving a car. If you want to fly planes, you should really start with something easier to fly. I also think you'd do best by finding the local club and getting some help. Since you're in Canada, the AMA isn't the right group to find local clubs, but I think the national group in Canada is MAAC or something like that?

If you aren't going to get experienced help, start with a small electric foamie that's designed as a trainer or easy to fly plane.

With the Mossie, you have a twin warbird that is not the hardest plane to fly out there, but it's more complicated with much more that can go wrong than a typical beginners plane.


_____________________________

Kirk Montague Adams
RCCA 560

(in reply to FlyFanatic)
       Post #: 654

RE: DeHavilland Mosquito - 8/17/2008 4:53:36 AM   
havnfun


 

Posts: 21
Joined: 9/26/2002
From: Indianapolis, IN, USA
Status: offline 		Hey bud! Sorry to say, but the advice offered by Montague is on the money. Please rethink; I ,for one, would hate to lose a new flyer because of a major disappointment, after spending a lot of green. Not to mention the time and effort to put the mossie together. I would counsel you to follow the track that Montauge suggested; spending the money and learning to fly a "trainer" of some kind is the easier part; the harder part is aquiring the knowledge, skill, and temperment on the workbench to know and understand the huge differences between a "trainer", and a craft such as the mossie. IMHO, of course. Good luck with your decision.

< Message edited by havnfun -- 8/17/2008 4:55:54 AM >

(in reply to brushlessmaxx)
       Post #: 655

RE: DeHavilland Mosquito - 8/17/2008 12:35:14 PM   
pentaxman


 

Posts: 14
Joined: 9/13/2005
From: BraintreeEssex, UNITED KINGDOM
Status: offline 		Brushlessmaxx

I have to agree with both of the above gentlemen, please get a trainer and learn to fly before thinking of getting your Mossie in the air.
If you have to see you model in the air, get an experienced model flyer to fly it for you.
Prior to that do a VERY carefull check on the CoG following your repairs, if anything make sure the CoG is infront of where it should be.

I have a Mosquito built from scratch from a plan.
It has been built for electric and is incrediby light for the size of model (74" wingspan and 3.2 lbs in flying trim).
Even though she is a sweet flyer, get her where she should not be and she bites like a real cow.

For a beginner there are just too many things that can go wrong and probably will, without experience it may be a case of no return for the model.

A good example would be motors out of sync so one pulls stronger than the other, easyier (note the word used - NOT easy) for the experienced pilot to recognise the symptom and to fly accordingly to get the plane back down again for adjustment.
A dead engine would be quite different again - there are plenty of videos of this sort of failure with experienced flyers flying the plane and crashing!

I wish you the best of luck

< Message edited by pentaxman -- 8/17/2008 12:38:14 PM >

(in reply to havnfun)
       Post #: 656

RE: DeHavilland Mosquito - 8/18/2008 6:40:59 PM   
Montague



Posts: 4653
Joined: 4/19/2002
From: Laurel, MD,
Status: offline 		Hey guys, anyone flying the CMP mossie have problems with rudder flutter? I didn't have any problem (at least I didn't think so), but a little while back I was a little hot on landing, and then hit a hole at the end of the runway which caused the plane to gently flip over. The only damage was the counterbalance on the rudder cracked off to the side. I did a little surgery on the rudder from one side, and put on a patch of covering. Ever since then, I can't go full speed with out the rudder starting to flutter like crazy. I'm beginning to think that the covering not being totally smooth is making any tendancy to flutter worse.

When putting my Mossie together, I re-drilled the rudder control attachment, I have two 4-40 screws as torque arms hooked up to the high-torque rudder servo on a pull-pull setup. But I am using the stock torque rod to actually turn the rudder, and it seems to have a fair bit of spring in it.

I tried a second bit of re-repair, which helped, but didn't fix the flutter entirely. I took off more of the covering on the rudder, and lightened up my origional repairs. Then I added some lead to the counterbalance section of the rudder (well forward of the hingeline), and recovered. However, between my covering skills being "poor at best" and the covering not sticking to the paint well, I still have a bunch of wrinkles, and the covering isn't very tight. My next step is to totally strip the rudder and re-cover, this time getting the whole job nice and tight.

Any other suggestions?

I have been really enjoying the plane, put a whole gallon of fuel through it this weekend, just flying around at betwen half and 2/3rd throttle except in climbs, and it's flying as great as always. The rudder flutter is driving me nuts though. Before the damage, the plane was clocked at just over 100mph in level flight. Now I'm guessing that I can't get above 80-90 before the flutter starts.


_____________________________

Kirk Montague Adams
RCCA 560

(in reply to pentaxman)
       Post #: 657

RE: DeHavilland Mosquito - 8/18/2008 7:18:03 PM   
pentaxman


 

Posts: 14
Joined: 9/13/2005
From: BraintreeEssex, UNITED KINGDOM
Status: offline 		Montague

Sounds to me like the hole the torque rod goes into in the rudder has become enlarged allowing the rudder to move slightly of its own accord.
Could it be that the tip of the rudder has got refitted slightly on the skew or that your recovering has pulled it over slightly?
That way the balance tip would be fighting the remains of the rudder which would not help any.

Just a few thoughts...

Good luck on finding a solution.

(in reply to Montague)
       Post #: 658

RE: DeHavilland Mosquito - 8/18/2008 7:25:16 PM   
Montague



Posts: 4653
Joined: 4/19/2002
From: Laurel, MD,
Status: offline 		Good suggestions.

I did check the hole where the torque rod goes into the rudder. It feels solid, and the rudder doesn't have that really easy movement at all, it's always fighting at least the rod when you move it by hand. Doesn't mean it's not a little loose, I'll double check that.

I also thought about the rudder being twisted or warped from the damage. I can't say for sure that it's actually straight. I did try to keep everything straight and even, and eyeballed it several times and tried to get things in alignment. Also, when I was working on the broken area, I did some sanding on the counterbalance, and I really tried to keep it symetrical. I think I did a fairly good job on that count but who knows. Maybe I'll block the plane up on it's side and try an incidence meter on it in various places (if the meter doesn't warp the rudder with it's own weight).


_____________________________

Kirk Montague Adams
RCCA 560

(in reply to pentaxman)
       Post #: 659

RE: DeHavilland Mosquito - 8/18/2008 7:28:24 PM   
pentaxman


 

Posts: 14
Joined: 9/13/2005
From: BraintreeEssex, UNITED KINGDOM
Status: offline 		You can tighten the hole up a bit by soaking the balsa hole with water spray. Give it a couple of goes and then zap it with a bit of CA to ensure it stays tight.

(in reply to Montague)
       Post #: 660

RE: DeHavilland Mosquito - 8/18/2008 7:50:28 PM   
Montague



Posts: 4653
Joined: 4/19/2002
From: Laurel, MD,
Status: offline 		I've heard that. But when I put in the torque rod, I use a liberal amount of epoxy in the hole and on the wire to harden things up. I don't know if the water trick will work, but it can't hurt anything.


_____________________________

Kirk Montague Adams
RCCA 560

(in reply to pentaxman)
       Post #: 661

RE: DeHavilland Mosquito - 8/20/2008 4:59:10 PM   
Alistair


 

Posts: 74
Joined: 9/23/2004
From: FavershamKent, UNITED KINGDOM
Status: offline 		I had my maiden flight with the flair/cmpro mossie and ....................

total disaster

Taking off on grass was very slow (grass was probably not the best idea) but with 2 x 52fs I thought that would be oodles

At full power took for ages to get up to speed to fly a good 60-70ft although despite what others have said I had no problem controlling direction in a straight line with rudder.

On take off it was on the stall and I tried to put it down again, which I did quite successfully - till wingtip clipped a fence post. Damage was way out of proportion to the speed of impact, ripping out the wingtip and significant damage to the main wing at the join. I think a lot of that was down to the shear weight of the model. It was repairable some minor damage to elevator. However I have had it with the mossie, I havnt enjoyed putting it together and I think I will take the hint that me and the flair mossie arnt destined to marry!

On reflection possibly I should still have just gone for height and hoped the engines without the drag of the ground would claw it up and gain speed, but at the time it just didnt feel right. It was a concious decision to put it down again not indecision, hard to describe but 'it just didnt feel right', it was only just airborne and struggling. As always, it's totally the pilot/builders responsibility for the crash but I never had good vibes with this at all and I am quite relieved to get shot of it plus the engine/radio gear back undamaged.

I have the air losirs P38 still to complete and I have no bad vibes putting that together, a much better kit altogether and lighter despite being 80" wingspan.

Final comment is excluding pilot error the shear weight of the flair mossie makes it totally unforgiving in any adverse situation.
Hope this doesnt put anyone else off. The chap saying its his first model - you would be totally unwise to try to learn to fly with this or any twin engine model. Go for a trainer


(in reply to Montague)
       Post #: 662

RE: DeHavilland Mosquito - 8/20/2008 5:14:37 PM   
Montague



Posts: 4653
Joined: 4/19/2002
From: Laurel, MD,
Status: offline 		Sorry to hear about your Mossie. If I might ask, what was your all up weight less fuel?

Mine tips the scales at a hair over 14lbs, and indeed does fly heavy. Mine does take a while to get up to speed, a while to speed up and longer to slow down. Usually I lift off and keep the climb out fairly flat (though the nose does pop up when I raise the gear, so I'm always pushing it back down). It's usually most of the way back around the field before I've managed to accelerate to full speed, even with throttles wide open from before lift off. It just takes a long time to get going. And getting into a slow-speed situation in the air is something I seriously avoid because it does take so long to get moving again. (I rarely loop the plane for this reason, I hate being slow over the top).

I'm not surprised you took a lot of damage from that mishap. I ran off the end of the runway with mine early on, and caught a wingtip in the tall