1/48 Italeri CH47 (Chinook) "Big Wokka" RAF

[Old Collingwood]

10 minutes ago, lmagna said:

 

To true but I think in earlier times or models they were not present. But like all choppers the downwash while hovering close to the ground can be pretty significant, especially in a bird as big as a CH and all kinds of stuff can be kicked up and thrown into the engines. I think almost all helicopters have some kind of intake protection these days. We had engine filters on the Hueys that resembled something from a vacuum cleaner.  

I remember the dust boxes  that were fitted to S - 61  Sea Kings   - I think  related to when they went out to the  Kuwait/ Iraq   areas, I think they were not just screens but actual filters  - they looked powerd  as they were a physical box.

 

OC.

[Canute]

Nicely done screens, mate.  Unfortunately, can't do that on bigger jets, too much of an airflow reduction. We did have screens the engine mechs put on for some ground runs. Sucking birds down intakes is hazardous to engine longevity. I've had a couple of bird strikes, but wings and canopies don't make you stop flying. The Big Wokka is looking good, OC.

[Old Collingwood]

25 minutes ago, Canute said:

Nicely done screens, mate.  Unfortunately, can't do that on bigger jets, too much of an airflow reduction. We did have screens the engine mechs put on for some ground runs. Sucking birds down intakes is hazardous to engine longevity. I've had a couple of bird strikes, but wings and canopies don't make you stop flying. The Big Wokka is looking good, OC.

Thanks Ken, much appreciated mate,   was you able to fly an F4   on one engine if you had to shut down  the other  re - bird strike?

 

OC.

[Canute]

Yeah, I did. It wasn't a bird strike down the intake. We broke an oil line and shut the engine down.We went home and just had to land a little faster than usual. Good triple redundant hydraulics helped.

[Old Collingwood]

31 minutes ago, Canute said:

Yeah, I did. It wasn't a bird strike down the intake. We broke an oil line and shut the engine down.We went home and just had to land a little faster than usual. Good triple redundant hydraulics helped.

Thanks mate,   glad you made it ok.

 

OC.

[Canute]

OC, I never had to use a "silk let down". Had some close calls, but all my landings matched my takeoffs. Got towed back to parking in a dead state, but that was due to icy taxiways. The runway was "acceptable" (I don't know who made that call, but the pilot and I both questioned his evaluation skill), although very sporty.

[Old Collingwood]

Evening to my band of  following dudes  and  all who look over my little  workflow  -  so  I have started and completed  the maksing  ready for the primer/paint  layers, the main entrance door was straight forward  just Two doors joined together with tape then pushed inplace and held behind with blue tack,  the other side window was covered with card and tape  - the rear ramp area was covered with paper and tape and the upper ramp door secured with blue tack and tape  and finaly the gearbox cutout has had some sponge  pushed inside  - so  alreadfy  now.

 

OC.

[mtaylor]

I'm not sure that the intake filters were ever powered on choppers.   Most of the ones I've seen take the incoming air and 'cyclone' (for lack of a better word).  The realitively clean air goes into the engine and the dust and debris goes out he side/top/bottom of the filter.  Many different designs depending on the engine.

[Old Collingwood]

8 minutes ago, mtaylor said:

I'm not sure that the intake filters were ever powered on choppers.   Most of the ones I've seen take the incoming air and 'cyclone' (for lack of a better word).  The realitively clean air goes into the engine and the dust and debris goes out he side/top/bottom of the filter.  Many different designs depending on the engine.

Thanks Mark.

 

OC.

[Old Collingwood]

Evening all,    right  Primer day   - it was a bit fiddly  as it had be done outside,   the idea was to sit it on a box  ontop of our covered  deck bench, then   spray what I could while walking around the wokka, then left it a few minutes  to dry till I could pick it up and place it down so I could spray the underside,   only issue I had was a bit of a run  near the winch  - I left it to dry for a few moments then rushed it inside still on the box and straight into our cupbaord.

This evening I was able to check it out and give the run a light wet and dry  - problem solved.

 

OC.

[popeye the sailor]

looking really good OC..........you've made quite a bit of progress  

[Old Collingwood]

1 hour ago, popeye the sailor said:

looking really good OC..........you've made quite a bit of progress  

Thanks mate, they say the primer is the "Tell tail"    as it shows up everything.

 

OC.

[Old Collingwood]

Bit of progress  (sort of)   I took the wokka outside  got the outdoor bench set up again  with a box to  put it on,  got my rattle can  RAF Green   then after a warm up and thorough  shake, I started spraying.................ups................splirt splirt  got half the  wokka  done then it ran out😬

 

So as it stands its put away  de gasing in the cupboard  keeping the smell locked away,    will have to wait now till the new year  before I can finish it.

 

Oh well   I have my Waterloo  figures to keep me out of trouble.

 

OC.

[popeye the sailor]

don't ya just hate that ?!?!?!   Murphy..........I knew it!

[Old Collingwood]

2 hours ago, popeye the sailor said:

don't ya just hate that ?!?!?!   Murphy..........I knew it!

Murthy disguised  as  empty rattle can  - it tricked me  it said  "Shake me shake me -  I have enough inside"

 

OC.

[popeye the sailor]

it's a common affliction though.........I seem to be running low on flat black  

[mtaylor]

You have to be alert... Murphy is one sneaky creature* and is full of surprises.  

 

* You can replace the word "creature" of the word you prefer.  My was too obscene for this site.

[Landlubber Mike]

Coming along nicely OC!  Looks like it will be a nice sized model.

[Old Collingwood]

1 hour ago, Landlubber Mike said:

Coming along nicely OC!  Looks like it will be a nice sized model.

Thanks Mike,    its paused for a bit  ran out of spray paint.

 

OC.

[Old Collingwood]

Is 47 decibels  very loud for a  sprayers  compressor?    could you use something of that  noise level in a sitting room without it causing disruption to normal tv watching?

 

OC.

[amateur]

Shame.... I was hoping for an update.

Question: how are you going to prevent the air inlets from cloggi g up when painting?

 

Jan

[lmagna]

47 DB is considered about the same as heavy rainfall, a dishwasher, light conversation, bird calls, (Depending on bird of course) Chances are that your TV is making more or about the same amount of noise.

 

So whether it interferes with TV watching would depend on how far a way it is from the TV and how close the watcher of said TV is and what their hearing is. The buzzing of a small air compressor could make the conversations on TV hard to understand if it was close enough to the listener.

 

I suspect that the compressor I use is about that sound level and it does not seem to bother my wife's Tv watching when i have used it when 35-40 feet away in the adjoining dinning room In my house the living abd dinning rooms are really just one long large room of probably 20+ feet each and my work area is almost as far from the TV as you can get and still be in the house so it is probably more like 40 feet.

 

The little compressor I have been using looks like this:

https://www.amazon.com/Master-Airbrush-Compressor-C-16-B-Compre/dp/B00ATEKB5G/ref=asc_df_B00ATEKB5G/?tag=hyprod-20&linkCode=df0&hvadid=167148482147&hvpos=&hvnetw=g&hvrand=8170202559968232396&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9033347&hvtargid=pla-310332754799&psc=1

Except it was not that expensive when I bought it years ago at a local hobby shop along with the airbrush.

I am certain that it would not meet with approval with the master airbrush users here on the forum but you might be surprised what you could do with something like this:

 https://www.ebay.com/itm/Dual-Action-Airbrush-Compressor-Kit-Spray-Air-Brush-Set-Tattoo-Nail-Art-Gift/383319913495?_trkparms=aid%3D555018%26algo%3DPL.SIM%26ao%3D1%26asc%3D225086%26meid%3D96a22ad8f6b34fe5b12088ce4ca88ee9%26pid%3D100005%26rk%3D1%26rkt%3D12%26mehot%3Dco%26sd%3D114013068842%26itm%3D383319913495%26pmt%3D1%26noa%3D0%26pg%3D2047675%26algv%3DSimplAMLv5PairwiseWeb&_trksid=p2047675.c100005.m1851

It is almost exactly or possibly is exactly what I used for my Huey build so far.

 

You can make your own opinion by watching some of these: https://www.youtube.com/results?search_query=cheep+airbrush+comparison+ AirbrushAsylum seemed to think that this airbrush was goo enough to carry in their own inventory as an alternative: https://www.amazon.com/dp/B071NTM8TY/?ref=exp_airbrushasylum_dp_vv_d&th=1

 

My argument is that even if it only did as well as a rattle can it would more than pay for it's self in a sort time just in the savings in paint. My experience is that my cheap little gun does MUCH better than a can and so far has been very miserly on paint usage. It has also only been limited by my inexperience not by it's ability.

 

 

Edited November 30, 2020 by lmagna

[Egilman]

3 hours ago, Old Collingwood said:

could you use something of that  noise level in a sitting room without it causing disruption to normal tv watching?

I agree with Lou, you're TV is probably louder than that.....

[Edwardkenway]

I'd say go for it OC, I've gone and got one of my daughters getting me one, very similar to Lou's approximately £40 from Amazon 

https://www.amazon.co.uk/gp/aw/d/B07H85JQJ7/ref=psdcmw_3063725031_t1_B018LOO8YA#

[Old Collingwood]

Thank you for the comments guys  - will have to see how next year pans out, another thing that sounds good is being able to use none smelly acrylic paints  meaning  hassle/smell free painting in the house without having all that fuss  having to paint outside controled by the weather then having to rush the smelly painted thing through the lounge  and into the cupboard before the admiral gets a wiff  of it.

 

OC.

[mtaylor]

I do like that price for a starter air brush.  Almost, but no quite, makes me want to do another plastic kit but my wood builds have the priority.    I'll sit quietly until the urge goes away.......

[lmagna]

Another thing about these airbrushes and their small pumps.

 

If the noise level is too loud you can always throw a folded towel into an empty cardboard box lay the pump on it, run the hose out and close the flaps while it is running.  that would muffle the sound so much that you may not notice it from six feet away. There would be plenty of air leakage in the box so the pump would not be starved for air.

[GrandpaPhil]

Very cool!

[Old Collingwood]

1 minute ago, GrandpaPhil said:

Very cool!

Thank you Phil,

 

All the best to you and yours mate.

 

OC.

[GrandpaPhil]

Merry Christmas and all the best to you and yours as well!