The De Havilland DH.101 Mosquito Hawk

The Wooksta! · January 31, 2011, 01:49:01 AM

They're the Ventura (now Jays) conversion kit.

kitnut617 · January 31, 2011, 07:05:47 AM

That's right, Jays Models. What you see on the sprue is what you get, fuselage sides, leading edge radiators and there's an carb intake too.

High Planes has them or if you PM me I'll give you John Stone's (the owner) email addy.

http://www.hiplanes.com/new/intropage.htm

kitnut617 · January 31, 2011, 07:20:31 AM

Here's one of the sides with the wing root fairing cleaned off.

kitnut617 · January 31, 2011, 07:51:54 AM

I found out something from Tony Buttler yesterday, The DH.102 was a bit smaller than the DH.101 but also a bit bigger than the DH.98, that much is known. So I asked him if the drawing he has of the DH.102 shows what type of u/c it has. Turns out it was to have a single leg u/c unit too. It would seem there was a design philosophy change as the DH.101, 102 & 103 all switched to the single leg design.

I think I might now build a DH.102 as well sometime in the future, I can use the Sea Fury wheels on it ---

R simmie · January 31, 2011, 11:23:07 PM

Hello Kitnut,

You said you were going to check if a 1/48 Spitfire wheel would work on the 1/72 DH101. How did it match?

kitnut617 · February 01, 2011, 06:39:16 AM

RS, we were discussing whether a 1/48 five spoke Spit wheel hub would work. It would entail using an Airfix 1/72 B-25 wheel, cutting out the hubs, then using the 1/48 Spit hub which has had the tyre removed from it. I looked at my Eduard Spit Mk.22 and realized that they have four spoke wheels where the hubs from them 'could' work, but considering the scale and the real size of the aircraft, I think the five spoke hub would be more appropriate.

The wheel of the DH.101 is 48" diameter by 18" wide and that matches the B-25 wheel very well, at least the Airfix B-25 wheel. Craig has said that the Matchbox B-25 has smaller wheels and I've already got a pile of wheels which are smaller. I might buy a set of True Details 1/72 B-25 wheels just to see what size they come out at, the Airfix B-25 wheels just might be an anomaly (has been known

)

On the other hand, De Havilland might have just gone with a B-25 wheel, the RAF would have had them in stock at the time as they were using them operationally. The drawings I have don't show any hub details unfortunately.

The Wooksta! · February 01, 2011, 07:25:15 AM

They could be plain hub with double disc brakes?

kitnut617 · February 01, 2011, 07:29:01 AM

There's that too, so there's lots of options. Plain hubs though are just boring ---

The Wooksta! · February 01, 2011, 07:32:37 AM

Not on Mosquitos. Nothing is boring when it comes to Mosquitos.

R simmie · February 01, 2011, 10:12:02 PM

Thanks for reply concerning the Spitfire hubs...I should have reread your post!
I will check if someone at our local club has an old Airfix B-25 they could part with(and its undercarriage too?)
I am going to order 2x Jay's Models Tempest Mk1 conversion kits tonight.

Just another question...does the drawing show if the Sabre exhausts have flame dampers(?)
covering them or are they in plain view.

RS

kitnut617 · February 02, 2011, 06:34:09 AM

The drawing doesn't show any exhaust RS, so I guess it's open to whatever we want. But one thing to keep in mind, the exhaust will be further back from the propeller because of the contra prop mechanism. I'm going to get a couple of those Quickboost Tempest exhaust sets for mine.

I've been told that the Sabre Mk.VIII (not the one shown in Fury prototype photos which is a MK.VII) was specifically for a conta-prop but there's no photo of the set up.

R simmie · February 03, 2011, 10:43:37 PM

"But one thing to keep in mind, the exhaust will be further back from the propeller because of the contra prop mechanism."

Are you sure of that? Pics I have seen of Spitfires with CR props seem to show only longer prop hubs with the mechanism within that and no modification to the rest of the planes nose.

So a list of things to get to start a DH 101 are:
True details Catalina or B25 wheels set
Jay's models Tempest Mk 1 2x set
Scale Aircraft conversions B-25 Landing gear set
Quickboost Tempest exhausts 2x set
Pavla Mosquito Mk IV cockpit or Czechmaster Mosquito interior with Vac form canopy/bombadier nose
Hampden 1/72 wings
-would ResinArt Typhoon 4-blade props 4x set be applicable?

Anything else to date? Maybe a resin bomb bay to enlarge with shims in width and length to display
8x1000lbers or a 8000lber cookie?

RS

kitnut617 · February 04, 2011, 07:05:58 AM

Quote from: R simmie on February 03, 2011, 10:43:37 PM
Are you sure of that? Pics I have seen of Spitfires with CR props seem to show only longer prop hubs with the mechanism within that and no modification to the rest of the planes nose.

The thing to remember is this engine was to have some serious horsepower, we're probably looking at 3000+ hp and 4000 hp wouldn't be something to laugh about either (there was a Sabre Mk.VII bench-tested to 5500 hp). Having done some design work involving gears I have a good idea just how big the gears would have had to be in the PSRU to absorb the type of power we're thinking about. They get pretty big, just look at some truck differential gears compared to a cars if you want an idea. Using the Spit set-up isn't a good comparison, the engine in that barely put out 2000 hp. The best comparison would be the Westland Wyvern TF Mk.1 that's at Yeovilton because the engine in that is the closest you'll find to what was to be used in the DH.101.

Pic below shows you what I mean

kitnut617 · February 04, 2011, 07:19:11 AM

Quote from: R simmie on February 03, 2011, 10:43:37 PM
So a list of things to get to start a DH 101 are:
True details Catalina or B25 wheels set
Jay's models Tempest Mk 1 2x set
Scale Aircraft conversions B-25 Landing gear set
Quickboost Tempest exhausts 2x set
Pavla Mosquito Mk IV cockpit or Czechmaster Mosquito interior with Vac form canopy/bombadier nose
Hampden 1/72 wings
-would ResinArt Typhoon 4-blade props 4x set be applicable?

All the above would be 1/72 scale but the B-25 wheels I'll be doing will have 1/48 Spitfire five-spoke hubs for one of my builds. The nose wheel in the Catalina set does match the tail wheel size in the drawing though
If you're only building one DH.101 you would only need two Typhoon four-blade props, but you'll have to find a prop that looks similar in profile but turns in the opposite direction, I'm leaning towards B-29 props myself for this because they're 16'-0 diameter so there's room to work with.
1/72 Mosquito bomber canopy for sure, but not the bomb-aimers window. It looks like it was just a sheet of sloped flat glass set in a 'solid' looking nose. There may have been some side windows but the drawing isn't showing anything like that.
Also I'm not sold on the Hampden wing route, I think I'll just stick to the way I was going, scratch build the wings as it seems there's almost as much work modifying the Hampden wings.

jcf · February 04, 2011, 10:49:11 AM

Quote from: kitnut617 on February 02, 2011, 06:34:09 AM
I've been told that the Sabre Mk.VIII (not the one shown in Fury prototype photos which is a MK.VII) was specifically for a conta-prop but there's no photo of the set up.

Lumsden gives the designation Sabre E.118 for the three-speed, two-stage, contra-prop Sabre rather than Sabre VIII.
He also notes that, like the Sabre VIII, it was tested on the Folland Fo.108 43/37.