The issue of size, is less binary, although you have two broad choices: medium or xtra-xtra large. Below is a breakdown of grenadier units as they appear in the published "British Grenadier!" scenario books:
Lexington: 24
Bunker Hill: 16
Dorchester: 16
Long Island: 20, 20, 16, 16 (1st, 2nd, 3rd, 4th Grenadiers)
Haarlem Heights: 20, 20, 16, 16 (1st, 2nd, 3rd, 4th Grenadiers)
Bound Brook: 20
Pell's Point: 40
Brandywine: 24, 24 (1st and 2nd Grenadiers)
Hubbardton: 32
Freemans' Farm: 24
Bemis Heights: 16
Whitemarsh: 24, 24 (1st and 2nd Grenadiers)
Monmouth: 32, 32 (1st and 2nd Grenadiers)
Briar Creek: 10
Eutaw Springs: 14
La Vigie: 20
So a unit of 24 figures will cover over half the scenarios, and many gamers will be satisfied with that. It's when you look at the larger battles that numbers get a bit sticky. There are five scenarios in which the 1st Grenadiers and the 2nd Grenadiers both appear and two of those also feature the 3rd and 4th Grenadiers. So the most grenadier figures you need at one time, for Long Island or Haarlem Heights, is 72.
I painted the 3rd and 4th Grenadiers for a Long Island game back in 2008 (together with a command stand). Those 16-figure units, both in charging poses, helpfully combine to form the 2nd Grenadiers for Brandywine, Whitemarsh and Monmouth. My existing 1st Grenadiers, in marching poses, was 24 figures, so that needed bulking up to 32 anyway. But I then looked at the other scenarios and thought I might as well just another 8 figures to bring the unit up to 40 so I could use it as both the 1st and 2nd Grenadiers for Long Island and Haarlem Heights.
Having decided on numbers, the last issue is to think about what regiments the unit(s) should include. The composition of the combined battalions changed over the duration of the war, but the following information seems reliable (and is taken mostly from the research that Brendan Morrissey has made available either in his excellent Osprey books or on TMP and other websites):
At Bunker Hill in June 1775:
- 4th, 5th, 10th, 18th, 23rd, 38th, 43rd, 47th, 52nd, 59th.
In 1776:
- 3rd Grenadiers: 15th, 28th, 33rd, 37th, 46th, 54th and 57th;
- 4th Grenadiers: 42nd (one double-size company) and 71st highlanders (three companies).
In 1777/78:
- 1st Grenadiers: 4th, 5th, 10th, 15th, 17th, 22nd, 23rd, 27th, 28th, 33rd, 35th, 38th, 42nd and 55th regiments;
- 2nd Grenadiers: 37th, 40th, 43rd, 44th, 45th, 46th, 49th, 52nd, 57th, 63rd, 64th, 71st, and Marines (the companies from the 71st and Marines were reassigned before the battle of Monmouth in June 1778);
- Burgoyne's Saratoga army: 9th, 20th, 21st, 24th, 29th, 31st, 34th, 47th, 53rd and 62nd.
At Eutaw Springs in September 1781:
- 3rd, 19th, 30th.
Trying to replicate the precise configurations of these combined battalions would therefore require a lot of extra figures to ensure that the correct regiments were represented. The easiest way is probably to stick to just one pose, whether marching, charging or firing, as that would then allow you to mix and match more extensively. I'm constrained by having one large unit in charging poses and the other in marching poses. So combining my 3rd and 4th Grenadiers to form the 2nd Grenadiers at Monmouth, for example, doesn't really work as 42nd's grenadier company was with the 1st Grenadiers and the 71st's had been sent to New York. The approach I've taken with the larger units to ensure the numbers are correct without worrying too much about the facings. That said, the most common facing colours were yellow and dark green, so you can't go too wrong with lots of figures in those colours (looking at the 1st Grenadiers in 1777/78, for example, you have four companies with yellow facings, three with dark blue, two each with buff and dark green, one each with orange, white and red; of the seven companies in the 3rd Grenadiers in 1776, five had yellow facings). The facing colour that is most noticeable is buff, because that means the colours of the smallclothes and cross-belts should be buff too. I already had a couple of buff-faced figures in my existing 1st Grenadiers, but with an eye on the Eutaw Springs scenario I decided to paint a new base of 6 figures, including a Foundry fifer, to represent the 3rd Foot's grenadier company (and which I could then combine with two 4-figure bases to make the 14-figure unit required for that scenario).
Here are the new figures:
I appreciate that the blog has been quite of late, but I'm now back in business and there is much more AWI to come shortly.
14 figures. Painted August 2016. Below are some other photos of the complete "brigade" out in the sun.
The second battalions of the 42nd and 71st have a red stripe in their plaid.